A flexible door panel cold storage door system incorporates a flexible movable door panel having an internal support frame assembly and the door panel has a plurality of gasket sections removably attached to a cold space surface of a door panel jacket with each gasket section having at least one fer
A flexible door panel cold storage door system incorporates a flexible movable door panel having an internal support frame assembly and the door panel has a plurality of gasket sections removably attached to a cold space surface of a door panel jacket with each gasket section having at least one ferrous gasket target and the gasket sections are aligned and cooperate with a plurality of electromagnets that are mounted in a doorframe assembly when the door panel is in a closed position. The electromagnets are mounted in wells in the doorframe assembly and are powered on when the door panel is in the closed position and the wells are interconnected by a ventilation channel that conducts air heated by operation of the electromagnets through the ventilation channel and into and through a bottom sweep assembly of the door panel in a closed loop. The heated air reduces or eliminates problems of icing in the immediate vicinity of the periphery of the door panel and reduces or eliminates problems of freezing of the door panel in a closed position. The gasket sections are easily replaced if worn or damaged during use.
대표청구항▼
1. A flexible door panel cold storage door system for selectively blocking and unblocking a door opening in a boundary wall between a cold space and a warm space comprising: a doorframe assembly, having a vertical left frame, a horizontal top frame, and a vertical right frame mounted to or in said w
1. A flexible door panel cold storage door system for selectively blocking and unblocking a door opening in a boundary wall between a cold space and a warm space comprising: a doorframe assembly, having a vertical left frame, a horizontal top frame, and a vertical right frame mounted to or in said wall to contiguously define together with a floor surface between said left frame and said right frame of said door opening;said left frame having a left frame core; said top frame having a top frame core; said right frame having a right frame core; each said frame core having a frame core front surface and a longitudinal frame core front surface centerline;a plurality of open electromagnet wells in said frame cores distributed along and proximate to said centerlines;a frame core ventilation channel formed in said frame core front surfaces, said ventilation channel having a first end near said left frame core's bottom end and said ventilation channel contiguously and serially communicating to and through each said well in each said frame core and said ventilation channel having a second end near said right frame core's bottom end;a plurality of electromagnets operably mounted one electromagnet in each said well and mounted substantially flush to adjacent said frame core front surface;a nonferrous doorframe outer jacket attached to and substantially covers said frames, said ventilation channel, and said electromagnets;each said electromagnet selectively energized bya D/C power supply electrically connected to said electromagnets; said power supply selectively controlled by a control box;two air ventilation ports through said outer jacket and said ventilation ports communicating with said ventilation channel and with one said ventilation port located proximate said first end and the other said ventilation port located proximate said second end such that air heated by the electromagnets exits one of said ventilation ports, and traverses the floor surface;a movable flexible door panel having a door panel jacket and having a door panel periphery and said door panel selectively disposable against said doorframe outer jacket to at least partially block said door opening when in a closed position, said door panel substantially unblocking said door opening when in an open position; said door panel jacket having an upper end and a lower end;two bottom sweep gasket sections removably attached by attachment means to said door panel jacket proximate said lower end along said door panel periphery that overlap two portions of said doorframe outer jacket when said door panel is in said closed position with one said bottom sweep gasket section located proximate said first end and the other said bottom sweep gasket section located proximate said second end;a plurality of intermediate gasket sections removably and contiguously attached by attachment means to said door panel jacket between and proximate to said sweep gasket sections and along a contiguous portion of said door panel periphery that overlaps a contiguous portion of said doorframe outer jacket when said door panel is in said closed position and said gasket sections operably configured to form an air seal with said doorframe outer jacket when said door panel is in said closed position; andeach said gasket section having at least one ferrous gasket target located proximate said gasket section's surface spaced away from said door panel jacket and towards said doorframe outer jacket and each said ferrous gasket target aligned to cooperate and be magnetically attracted by and to one of said electromagnets when said door panel is in said closed position and said electromagnets are energized. 2. A flexible door panel cold storage door system according to claim 1 further comprising a heat dispersion layer interposed between said frame cores and said electromagnets and said dispersion layer proximately lining said wells and said channel and substantially covering said front surfaces. 3. A flexible door panel cold storage door system according to claim 1 further comprising: a lower end attachment hook strip attached to, about, and encircling said lower end;a bottom sweep assembly having a bottom sweep attachment loop strip; said bottom sweep attachment loop strip removably attached to said lower end attachment hook strip and encircling said lower end;each said bottom sweep gasket section having a transverse bore, said transverse bores aligned and communicating with said ventilation ports when said door panel is in said closed positiona depending wall portion of said bottom sweep assembly extending downward beyond said lower end to slidingly engagesaid floor surface in said door opening between said vertical left frame and said vertical right frame; said lower end, said depending wall portion, and said floor surface defininga bottom sweep assembly air channel, and said depending wall portion havingtwo bottom sweep assembly air ports communicating into and out from said bottom sweep assembly air channel, and said air ports aligned and communicating with said transverse bores; andan inline ventilation fan mounted in said ventilation channel. 4. A flexible door panel cold storage door system according to claim 2 further comprising: a lower end attachment hook strip attached to, about, and encircling said lower end;a bottom sweep assembly having a bottom sweep attachment loop strip; said bottom sweep attachment loop strip removably attached to said lower end attachment hook strip and encircling said lower end;each said bottom sweep gasket section having a transverse bore, said transverse bores aligned and communicating with said ventilation ports when said door panel is in said closed positiona depending wall portion of said bottom sweep assembly extending downward beyond said lower end to slidingly engagesaid floor surface in said door opening between said vertical left frame and said vertical right frame; said depending wall portion and said floor surface defininga bottom sweep assembly air channel, and said depending wall portion havingtwo bottom sweep assembly air ports communicating into and out from said bottom sweep assembly air channel, and said air ports aligned and communicating with said transverse bores; andan inline ventilation fan mounted in said ventilation channel. 5. A flexible door panel cold storage door system according to claim 3 wherein said bottom sweep assembly comprising: a bottom sweep base strip;said bottom sweep attachment loop strip attached to and along one side of said base strip;two bottom sweep air ports in said bottom sweep assembly communicating with said bottom sweep air channel and said air ports aligned and communicating with said transverse bores. 6. A flexible door panel cold storage door system according to claim 4 wherein said bottom sweep assembly comprising: a bottom sweep base strip;said bottom sweep attachment loop strip attached to and along one side of said base strip;two bottom sweep air ports in said bottom sweep assembly communicating with said bottom sweep air channel and said air ports aligned and communicating with said transverse bores. 7. A flexible door panel cold storage door system according to claim 3 wherein said door panel comprising: a support frame assembly having a header spaced from and connected toat least one door panel base plate segment byat least two spaced vertical suspension cables, each said suspension cable threaded lengthwise through and retained respectively inone of at least two vertical tube stiffeners;at least one horizontal tube stiffener attached proximately and elastically to and perpendicularly between said two vertical tube stiffeners;a plurality of flexible insulation sheets facing one another with at least one said insulation sheet on each side of said frame assembly and said insulation sheets supported by said frame assembly; andsaid door panel jacket encapsulating said support frame assembly and said insulation sheets. 8. A flexible door panel cold storage door system according to claim 4 wherein said door panel comprising: a support frame assembly having a header spaced from and connected toat least one door panel base plate segment byat least two spaced vertical suspension cables, each said suspension cable threaded lengthwise through and retained respectively inone of at least two vertical tube stiffeners;at least one horizontal tube stiffener attached proximately and elastically to and perpendicularly between said two vertical tube stiffeners;a plurality of flexible insulation sheets facing one another with at least one said insulation sheet on each side of said frame assembly and said insulation sheets supported by said frame assembly; andsaid door panel jacket encapsulating said support frame assembly and said insulation sheets. 9. A flexible door panel cold storage door system according to claim 7 further comprising an overhead horizontal track and carriage system comprising: at least two door hanger assemblies spaced and aligned coaxially and attached proximate said upper end to said header;an overhead horizontal track mounted across said top frame;a carriage assembly movably mounted to said horizontal track;said door panel suspended from said carriage assembly by said two door hanger assemblies; and said door panel selectively movable between said closed position and said open position. 10. A flexible door panel cold storage door system according to claim 8 further comprising an overhead horizontal track and carriage system comprising: at least two door hanger assemblies spaced and aligned coaxially and attached proximate said upper end to said header;an overhead horizontal track mounted across said top frame;a carriage assembly movably mounted to said horizontal track;said door panel suspended from said carriage assembly by said two door hanger assemblies; and said door panel selectively movable between said closed position and said open position. 11. A flexible door panel cold storage door system according to claim 9 wherein each said hanger assembly comprising: a hanger bracket attached to said header;a horizontal hanger member having a midpoint transverse bore, said hanger member rotatably mounted in said hanger bracket and retained therein by a retainer;a transverse hanger member rotatably mounted perpendicularly to said horizontal hanger member in said midpoint transverse bore; said transverse hanger member removably attached to said carriage assembly. 12. A flexible door panel cold storage door system according to claim 10 wherein each said hanger assembly comprising: a hanger bracket attached to said header;a horizontal hanger member having a midpoint transverse bore, said hanger member rotatably mounted in said hanger bracket and retained therein by a retainer;a transverse hanger member rotatably mounted perpendicularly to said horizontal hanger member in said midpoint transverse bore; said transverse hanger member removably attached to said carriage assembly. 13. A flexible door panel cold storage door system according to claim 2 wherein said door panel jacket having two panel jacket side surfaces, each said jacket side surface having at least one panel jacket side surface hook pad attached; said door panel jacket having a panel jacket top surface, said panel jacket top surface having at least one panel jacket top surface hook pad attached; each said gasket section having a gasket section hook pad attached along a side length; and further comprising two panel jacket side skirt assemblies each side skirt assembly having a panel jacket side skirt loop pad attached along one side; said panel jacket side skirt assemblies removably attached respectively one to each of said panel jacket side surfaces by at least one said panel jacket side surface hook pad removably engaging one of said side skirt loop pads;each said side skirt loop pad removably engaging portions of said gasket section hook pads adjacent said side surface hook pad;a top skirt assembly having a top skirt loop pad attached along one side; said top skirt assembly removably attached to said panel jacket top surface by at least one said panel jacket top surface hook pad removably engaging said top skirt loop pad; andsaid top skirt loop pad removably engaging portions of said gasket section hook pads adjacent said top surface hook pad. 14. A flexible door panel cold storage door system according to claim 6 wherein said door panel jacket having two panel jacket side surfaces, each said jacket side surface having at least one panel jacket side surface hook pad attached; said door panel jacket having a panel jacket top surface, said panel jacket top surface having at least one panel jacket top surface hook pad attached; each said gasket section having a gasket section hook pad attached along a side length; and further comprising two panel jacket side skirt assemblies each side skirt assembly having a panel jacket side skirt loop pad attached along one side; said panel jacket side skirt assemblies removably attached respectively one to each of said panel jacket side surfaces by at least one said panel jacket side surface hook pad removably engaging one of said side skirt loop pads;each said side skirt loop pad removably engaging portions of said gasket section hook pads adjacent said side surface hook pad;a top skirt assembly having a top skirt loop pad attached along one side; said top skirt assembly removably attached to said panel jacket top surface by at least one said panel jacket top surface hook pad removably engaging said top skirt loop pad; andsaid top skirt loop pad removably engaging portions of said gasket section hook pads adjacent said top surface hook pad. 15. A flexible door panel cold storage door system for selectively blocking and unblocking a door opening in a boundary wall between a cold space and a warm space comprising: a doorframe assembly, having a vertical left frame, a horizontal top frame, and a vertical right frame, mounted to or in said wall to contiguously define together with a floor surface between said left frame and said right frame of said door opening;said left frame having a left frame core; said top frame having a top frame core; said right frame having a right frame core; each said frame core having a frame core front surface and a longitudinal front surface centerline;a plurality of open electromagnet wells in said frame cores distributed along and proximate to said centerlines;a frame core ventilation channel formed in said frame core front surfaces, said ventilation channel having a first end near said left frame core's bottom end and said ventilation channel contiguously and serially communicating to and through each said well in each said frame core and said ventilation channel having a second end near said right frame core's bottom end;a heat dispersion layer proximately lining said wells and said ventilation channel and substantially covering said frame core front surfaces;a plurality of electromagnets operably mounted one electromagnet in each said well and mounted substantially flush to adjacent said frame core front surface;a nonferrous doorframe outer jacket attached to and substantially covers said frames, said ventilation channel, and said electromagnets;each said electromagnet selectively energized bya D/C power supply electrically connected to said electromagnets; said power supply selectively controlled by a control box;two air ventilation ports through said outer jacket and said ventilation ports communicating with said ventilation channel and with one said port located proximate said first end and the other port located proximate said second end;a movable flexible door panel having a left flexible door leaf and a right flexible door leaf said leaves engageable at an abutting interface between abutting edges of said leaves, each leaf having a leaf jacket and having a leaf jacket periphery and each said leaf selectively disposable against said doorframe outer jacket to at least partially block said door opening when in a respective closed position, each said leaf substantially unblocking said door opening when in a respective open position; each said leaf jacket having an upper end and a lower end;two bottom sweep gasket sections removably attached by attachment means one to each of said leaf jackets proximate said lower end along said leaf jacket periphery that overlaps a portion of said doorframe outer jacket when said door panel is in said closed position with one said bottom sweep gasket section located proximate said first end and the other said bottom sweep gasket section located proximate said second end;a plurality of intermediate gasket sections removably and contiguously attached by attachment means to each said leaf jacket proximate and along a contiguous portion of each said leaf jacket periphery that overlaps a contiguous portion of said doorframe outer jacket when said leaves are in said respective closed positions and said gasket sections operably configured to form an air seal with said doorframe outer jacket when said leaves are in said closed position; andeach said gasket section having at least one ferrous gasket target located proximate said gasket section's surface spaced away from said leaf jacket and towards said doorframe outer jacket and each said ferrous gasket target aligned to cooperate and be magnetically attracted by one of said electromagnets when said leaves are in said respective closed positions and said electromagnets are energized. 16. A flexible door panel cold storage door system according to claim 15 wherein each said leaf comprising: a support frame assembly having a header spaced from and connected toat least one door panel base plate segment byat least two spaced vertical suspension cables, each said suspension cable threaded lengthwise through and retained respectively inone of at least two vertical tube stiffeners;at least one horizontal tube stiffener attached proximately and elastically to and perpendicularly between said two vertical tube stiffeners;a plurality of flexible insulation sheets facing one another with at least one said insulation sheet on each side of said frame assembly and said insulation sheets supported by said frame assembly; andsaid leaf jacket encapsulating said support frame assembly and said insulation sheets. 17. A flexible door panel cold storage door system according to claim 16 further comprising at least two door hanger assemblies spaced and coaxially aligned and attached proximate said upper end to said header;an overhead horizontal track and carriage system comprising:an overhead horizontal track mounted across said top frame;two carriage assemblies movably mounted to said horizontal track;each said leaf suspended respectively by at least two door hanger assemblies from one of said carriage assemblies; and each said leaf movable between said respective closed position and said respective open position. 18. A flexible door panel cold storage door system according to claim 17 wherein each said leaf further comprising: a lower end attachment hook strip attached to, about, and encircling said lower end;a bottom sweep assembly having a bottom sweep attachment loop strip; said bottom sweep attachment loop strip removably attached to said lower end attachment hook strip and encircling said lower end;a depending wall portion of said bottom sweep assembly extending downward beyond said lower end to slidingly engagesaid floor surface in said door opening; said lower end, said depending wall portion, and said floor surface defininga bottom sweep assembly air channel, and said depending wall portion havinga bottom sweep assembly air port communicating into and out from said bottom sweep assembly air channel, and said assembly air port aligned and communicating with one of said ventilation ports when said door panel is in said closed position;an interface air port in a portion of said bottom sweep assembly in closest proximity to the other said leaf and aligned and communicating with said corresponding interface air port in the other said leaf when said leaves are in said closed position; andan inline ventilation fan mounted in said ventilation channel. 19. A flexible door panel cold storage door system according to claim 18 wherein each said leaf having a magnet strip incorporated into and along said leaf's abutting edge aligned to magnetically attract said corresponding magnet strip in the other said leaf's abutting edge; and each of said leaves having a sealing flap removably attached along a portion of said leaf's abutting edge; and said sealing flaps on opposite faces of said leaves to partially overlap the other said leaf when in said closed position. 20. A flexible door panel cold storage door system according to claim 17 wherein each said leaf jacket having a leaf jacket side surface away from said abutting edges, each said jacket side surface having at least one leaf jacket side surface hook pad attached; said leaf jacket having a leaf jacket top surface, said leaf jacket top surface having at least one leaf jacket top surface hook pad attached; each said gasket section having a gasket section hook pad attached along a side length; and further comprising two leaf jacket side skirt assemblies each side skirt assembly having a leaf jacket side skirt loop pad attached along one side; said leaf jacket side skirt assemblies removably attached respectively one to each of said leaf jacket side surfaces by at least one said leaf jacket side surface hook pad removably engaging one of said side skirt loop pads;each said side skirt loop pad removably engaging portions of said gasket section hook pads adjacent said side surface hook pad;a top skirt assembly having a top skirt loop pad attached along one side; said top skirt assembly removably attached to said leaf jacket top surface by at least one said leaf jacket top surface hook pad removably engaging said top skirt loop pad; andsaid top skirt loop pad removably engaging portions of said gasket section hook pads adjacent said top surface hook pad. 21. A flexible door panel cold storage door system according to claim 9 further comprising two stay roller assemblies mounted to said floor surface, with one roller assembly spaced away from said nonferrous doorframe outer jacket covering said vertical left frame and one roller assembly spaced away from said nonferrous doorframe outer jacket covering said vertical right frame to rollingly engage said door panel above said bottom sweep assembly. 22. A flexible door panel cold storage door system according to claim 10 further comprising two stay roller assemblies mounted to said floor surface, with one roller assembly spaced away from said nonferrous doorframe outer jacket covering said vertical left frame and one roller assembly spaced away from said nonferrous doorframe outer jacket covering said vertical right frame to rollingly engage said door panel above said bottom sweep assembly. 23. A flexible door panel cold storage door system according to claim 17 further comprising two stay roller assemblies mounted to said floor surface, with one roller assembly spaced away from said nonferrous doorframe outer jacket covering said vertical left frame and one roller assembly spaced away from said nonferrous doorframe outer jacket covering said vertical right frame each said roller assembly to rollingly engage one of said leaves above said leaf's bottom sweep assembly.
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이 특허에 인용된 특허 (10)
Berry,Curtis L.; Nichols,William B., Air heated, flexible door panel.
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