IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0552098
(1983-11-16)
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발명자
/ 주소 |
- Daw, David E.
- Vlastnik, Arthur F.
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출원인 / 주소 |
- Quikduc of California, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
22 인용 특허 :
7 |
초록
▼
A duct assembly system for joining duct sections each having a plurality of flat intersecting walls includes angle member connectors respectively associated with the duct walls, each connector being generally L-shaped with one leg portion extending perpendicular to the duct wall and having an elonga
A duct assembly system for joining duct sections each having a plurality of flat intersecting walls includes angle member connectors respectively associated with the duct walls, each connector being generally L-shaped with one leg portion extending perpendicular to the duct wall and having an elongated channel formed therein and the other leg portion comprising two biased-together flanges adapted for frictionally receiving the adjacent duct wall edge therebetween, each flange having elongated ridges which interlock with elongated ribs on the associated duct wall. Each duct wall edge is embedded in a mastic sealant in a trough in the associated connector, the trough having diverging sides for guiding the duct wall edge thereinto. Connectors on intersecting duct walls are joined by corner members formed of sheet metal and flanged for rigidity and tight fit in the connector channels. Each corner member has flanges for gripping the channel edges of the joined connectors. Adjacent corner members on the two duct sections are joined by fasteners and a gasket may be disposed between the duct sections.
대표청구항
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1. A duct assembly system for joining adjacent duct sections, each having a plurality of duct walls terminating at distal edges and meeting at duct corners, said system comprising: a plurality of elongated generally L-shaped angle member connectors respectively associated with the duct walls of both
1. A duct assembly system for joining adjacent duct sections, each having a plurality of duct walls terminating at distal edges and meeting at duct corners, said system comprising: a plurality of elongated generally L-shaped angle member connectors respectively associated with the duct walls of both duct sections, each of said connectors including two generally perpendicular leg portions, one of said leg portions including two flexible flanges resiliently biased together and cooperating to define therebetween a channel adapted for receiving therein the distal edge of the associated duct wall; one of said flexible flanges on each of said connectors having an elongated ridge projecting into said channel toward the other one of said flexible flanges and extending generally parallel to the distal edge thereof, each of the duct walls having an elongated continuous rib projecting from the plate thereof without perforation thereof and having a longitudinal axis spaced from and extending substantially parallel to the distal edge thereof, said flexible flanges accommodating cammed movement of said duct wall rib past said ridge when said duct wall is received between said flexible flanges, said rib being engageable with said ridge for interlocking the duct wall and said associated connector; and means interconnecting said connectors on each duct section and connecting the connectors on one duct section respectively with the corresponding connectors on the other duct section securely to hold said duct sections together. 2. The duct assembly system of claim 1, wherein said elongated rib extends substantially the entire length of the distal edge of the associated duct wall. 3. The duct assembly system of claim 1, wherein each of the duct walls has plural parallel ribs and each of said connectors has plural parallel ridges on said one flexible flange thereof. 4. The duct assembly system of claim 1, wherein each of the duct walls has elongated ribs projecting respectively from the opposite sides thereof, each of said flexible flanges of each said connector having at least one elongated ridge thereon projecting inwardly toward the other one of said flanges. 5. Connection means for heating and air-conditioning ducts comprising: a duct section having a plurality of duct walls terminating at distal edges and meeting at duct corners, each of said duct walls having an elongated continuous rib projecting from the plane thereof without perforation thereof and having a longitudinal axis spaced from and substantially parallel to the distal edge thereof, and a plurality of elongated connectors respectively associated with said duct walls, each of said connectors including two flexible flanges resiliently biased together and cooperating to define therebetween a channel adapted for receiving therein the distal edge of the associated duct wall, one of said flexible flanges on each of said connectors having an elongated ridge projecting into said channel toward the other one of said flexible flanges and extending generally parallel to the distal edge thereof, said flexible flanges accommodating cammed movement of said duct wall rib past said ridge when said duct wall is received between said flexible flanges, said rib being engageable with said ridge for interlocking the duct wall and said associated connector. 6. The connection means of claim 5, wherein said elongated rib extends substantially the entire length of the distal edge of the associated duct wall. 7. The connection means of claim 5, wherein each of said duct walls has plural parallel ribs and each of said connectors has plural parallel ridges on said one flexible flange thereof. 8. The connection means of claim 5, wherein each of said duct walls has elongated ribs projecting respectively from the opposite sides thereof, each of said flexible flanges of each said connector having at least one elongated ridge thereon projecting inwardly toward the other one of said flanges. 9. A duct assembly system for joining adjacent duct sections, each having plurality of duct walls terminating at distal edges and meeting at duct corners, said system comprising: a plurality of elongated generally L-shaped angle member connectors respectively associated with the duct walls of both duct sections, each of said connectors including two generally perpendicular leg portions, one of said leg portions including two flexible flanges resiliently biased together and adapted for receiving therebetween the distal edge of the associated duct wall, the other of said leg portions having spaced-apart flexible walls defining a channel therebetween open at the ends of said connector and respectively integral with said flexible flanges; a plurality of corner members respectively associated with the corners of both duct sections, each of said corner members having two legs respectively receivable in the channels of adjacent ones of said connectors at a corner of one of the duct sections, each of said corner member legs including holding means engageable with both sides of one of said flexible walls for preventing deflection thereof in either direction; and means connecting the corner members on one duct section respectively with the corresponding corner members on the other duct section for joining the duct sections. 10. The duct assembly system of claim 9, wherein said holding means comprises means for gripping one of said flexible walls. 11. The duct assembly system of claim 9, wherein said holding means includes two holding flanges respectively projecting laterally from said corner member legs of each of said corner members, each of said holding flanges having a gripping portion cooperating with the associated leg for grippingly receiving therebetween the adjacent end edge of said one of said flexible walls of the associated connector. 12. The duct assembly system of claim 11, wherein each of said corner member legs has a substantially flat planar body, each of said holding flanges being struck from the associated leg body, said gripping portion extending substantially parallel to said leg body. 13. The duct assembly system of claim 9, and further including locking means for interlocking said one leg portion of each of said connectors and the associated duct wall received therein. 14. The duct assembly system of claim 9, and further including gasket means disposed between adjacent ones of said connectors, wherein each of said connectors has a bearing portion at the junction of said leg portions and projecting outwardly beyond said other leg portion on the opposite side thereof from said one leg portion, said bearing portion on each of said connectors on one duct section bearing against the bearing portion of the opposite connector on the other duct section and cooperating therewith to define a pivot axis about which said other leg portions of said opposed connectors pivot toward each other as said corner members are drawn together by said connecting means thereby effectively to clamp said gasket means therebetween. 15. The duct assembly system of claim 9, wherein each of said connectors includes an inner wall integral with one of said flexible flanges at the inner end thereof, said inner wall and said one flexible flange diverging toward the space between said flexible flanges for cooperation to define a trough, and a soft deformable body of sealant material disposed in said trough, said inner wall being engageable with the distal edge of an associated duct wall for guiding said edge into said trough. 16. The duct assembly system of claim 9, wherein each duct section is rectangular in transverse cross section, said corner member legs being disposed substantially perpendicular to each other. 17. A generally L-shaped angle member connector for use in a duct assembly system to join adjacent duct sections, each having a plurality of duct walls terminating at distal edges and meeting at duct corners, said connector comprising: an elongated body having two flanges resiliently biased together and adapted for receiving therebetween the distal edge of an associated one of the duct walls, and a trough disposed in said body and extending the length thereof and having side walls diverging toward the space between said flanges, the diverging walls of said trough serving to guide the distal edge of the duct wall thereinto. 18. The angle member connector of claim 17, wherein one of said flanges has an elongated ridge thereon projecting inwardly toward the other of said flanges and having a longitudinal axis extending generally parallel to the distal edge thereof. 19. The angle member connector of claim 18, wherein said one flange has a plurality of said ridges thereon arranged parallel to each other. 20. The angle member connector of claim 18, wherein each of said flanges has at least one of said ridges thereon projecting inwardly toward the other one of said flanges. 21. The angle member connector of claim 17, and further including a soft deformable body of sealant material disposed in said trough and extending the length thereof for receiving therein the distal edge of the associated duct wall and cooperating with said trough for providing an air-tight seal between the duct wall and said body. 22. The angle member connector of claim 21, wherein said body includes a serpentine wall having a first portion cooperating with one of said flanges to define said trough and having a second portion cooperating with said first portion to define a channel opening away from said flanges, and a second body of sealant disposed in said channel. 23. The angle member connector of claim 17, wherein said flanges diverge at the ends thereof remote from said trough. 24. A corner member for use in a duct assembly system for joining two elongated connectors which are respectively coupled to intersecting duct walls of a duct section wherein each of said connectors has spaced-apart flexible walls defining a channel extending the length thereof and open at the ends thereof, said corner member comprising: a body having two legs respectively receivalbe in the channels of the two associated connectors, each of said legs including holding means adapted for gripping engagement with both sides of one of the walls of the associated connector for preventing deflection thereof in either direction. 25. The corner member of claim 24, wherein each of said legs comprises a substantially flat planar member, said holding means including a flange stuck from said member and having a gripping portion extending substantially parallel thereto. 26. The corner member of claim 24, wherein each of said legs has a bearing portion projecting laterally therefrom for inhibiting deflection of said walls toward each other. 27. The corner member of claim 24, wherein said body includes a circular opening therethrough and a part-circular embossment disposed substantially coaxially with said opening. 28. A duct assembly system for joining adjacent duct sections, each having a plurality of duct walls terminating at distal edges and meeting at duct corners, said system comprising: a plurality of elongated generally L-shaped angle member connectors respectively associated with the duct walls of both duct sections, each of said connectors including two generally perpendicular leg portions, one of said leg portions including two flexible flanges resiliently biased together and adapted for receiving therebetween the distal edge of the associated duct wall, the other of said leg portions having spaced-apart flexible walls defining a channel therebetween open at the ends of said connector and respectively integral with said flexible flanges; each of the duct walls having an elongated continuous rib projecting from the plane thereof and having a longitudinal axis spaced from and extending substantially parallel to the distal edge thereof and engageable with one of said flexible flanges of the associated connector upon insertion between said flexible flanges for interlocking the duct wall and said connectors; a plurality of corner members respectively associated with the corners of both duct sections, each of said corner members having two legs respectively receivable in the channels of adjacent ones of said connectors at a corner of one of the duct sections, each of said corner member legs including holding means engageable with one of said flexible walls for preventing deflection thereof; and means connecting the corner members on one duct section respectively with the corresponding corner members on the other duct section for joining the duct sections.
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