IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0475858
(2012-05-18)
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등록번호 |
US-8851332
(2014-10-07)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
11 |
초록
▼
The present disclosure provides apparatuses for filtering hot adhesives. In certain embodiments, the present disclosure provides a filter plate that is used in conjunction with a heater and a valve assembly. In other embodiments, the present disclosure provides a filter screen that is located in a r
The present disclosure provides apparatuses for filtering hot adhesives. In certain embodiments, the present disclosure provides a filter plate that is used in conjunction with a heater and a valve assembly. In other embodiments, the present disclosure provides a filter screen that is located in a recess of the valve assembly housing, in addition to or in lieu of the use of a separate filter plate. Both embodiments utilize one or more ribs, which aid the flow of adhesive, facilitate the transfer of heat from the heater to the valve assembly, and optionally, physically support the filter screen.
대표청구항
▼
1. An adhesive filtration system comprising: a) a heater for heating an adhesive comprising a heater housing and an adhesive exit aperture located in the heater housing for dispensing an adhesive;b) a valve assembly comprising a valve assembly heater housing, a valve assembly adhesive entrance apert
1. An adhesive filtration system comprising: a) a heater for heating an adhesive comprising a heater housing and an adhesive exit aperture located in the heater housing for dispensing an adhesive;b) a valve assembly comprising a valve assembly heater housing, a valve assembly adhesive entrance aperture for allowing the adhesive to enter the valve assembly housing, a valve assembly adhesive exit aperture for allowing the adhesive to exit the valve assembly housing, and a valve, the valve having an open position in which the valve permits the adhesive to exit the valve assembly housing via the valve assembly adhesive exit aperture and a closed position in which the valve prevents the adhesive from exiting the valve assembly housing via the valve assembly adhesive exit aperture; andc) a filter plate positioned between the heater and the valve assembly, the filter plate comprising a proximal surface facing the heater housing, a distal surface facing the valve assembly housing, a filter plate adhesive recess extending from the proximal surface towards the distal surface, a filter plate adhesive exit aperture located in a wall of the filter plate forming the adhesive recess and extending through the distal surface, a filter plate thickness extending from the proximal surface to the distal surface, a rib comprising a rib base attached to a wall of the filter plate forming the adhesive recess and a rib apex extending proximally from the base, and a filter screen located in the adhesive recess,wherein said filter plate adhesive exit aperture has a proximal end located in said adhesive recess, a distal end located at said distal surface, and a length extending from said proximal end to said distal end; andfurther wherein said proximal end of said filter plate adhesive exit aperture is located adjacent to said rib base. 2. The adhesive filtration system of claim 1, wherein the filter plate comprises a plurality of ribs, and further wherein the filter screen is proximally disposed relative to the plurality of ribs. 3. The adhesive filtration system of claim 2, wherein the filter screen contacts the apexes of the ribs. 4. The adhesive filtration system of claim 1, wherein the filter plate proximal surface contacts the heater housing and the filter plate distal surface contacts the valve assembly housing. 5. The adhesive filtration system of claim 1, wherein the filter plate comprises a plurality of ribs, each rib comprising a rib base attached to a wall of the filter plate forming the adhesive recess and a rib apex extending proximally from the base, and the ribs form a grid for delivering the adhesive to the filter plate adhesive exit aperture and further wherein each rib apex points proximally toward said heater. 6. The adhesive filtration system of claim 5, wherein the plurality of ribs are generally straight. 7. The adhesive filtration system of claim 1, wherein the filter screen is removably attached to the filter plate via an O-ring. 8. The adhesive filtration system of claim 1, wherein the system comprises a plurality of filter plates. 9. The adhesive filtration system of claim 1, wherein the filter plate is configured for temperatures between 250° F. and 450° F. 10. The adhesive filtration system of claim 1, wherein the filter plate has a filter plate thickness extending from the proximal surface to the distal surface and the filter plate thickness is from about 3 to about 7 millimeters. 11. The adhesive filtration system of claim 1, wherein said heater heats said filter plate and said valve assembly. 12. A method of filtering an adhesive comprising, a) providing an adhesive filtration system comprising: i) a heater for heating an adhesive comprising a heater housing and an adhesive exit aperture located in the heater housing for dispensing an adhesive;ii) a valve assembly comprising a valve assembly housing, a valve assembly adhesive entrance aperture for allowing the adhesive to enter the valve assembly housing, a valve assembly adhesive exit aperture for allowing the adhesive to exit the valve assembly housing, and a valve, the valve having an open position in which the valve permits the adhesive to exit the valve assembly housing via the valve assembly adhesive exit aperture and a closed position in which the valve prevents the adhesive from exiting the valve assembly housing via the valve assembly adhesive exit aperture; andiii) a filter plate positioned between the heater and the valve assembly, the filter plate comprising a proximal surface facing the heater housing, a distal surface facing the valve assembly housing, a filter plate adhesive recess extending from the proximal surface towards the distal surface, a filter plate adhesive exit aperture located in a wall of the filter plate forming the adhesive recess and extending through the distal surface, a filter plate thickness extending from the proximal surface to the distal surface, a rib comprising a rib base attached to a wall of the filter plate forming the adhesive recess and a rib apex extending proximally from the base, and a filter screen located in the adhesive recess wherein said filter plate adhesive exit aperture has a proximal end located in said adhesive recess, a distal end located at said distal surface, and a length extending from said proximal end to said distal end; and further wherein said proximal end of said filter plate adhesive exit aperture is located adjacent to said rib base;b) heating the adhesive in the heater to a temperature;c) opening the valve; andd) flowing the adhesive from the heater adhesive exit aperture, through the filter screen, through the filter plate adhesive exit aperture, through the valve assembly adhesive entrance aperture, into the valve assembly housing and out of the valve assembly adhesive exit aperture. 13. The method of claim 12, wherein the temperature of the adhesive decreases not more than about 10° F. as the adhesive flows from the heater adhesive exit aperture to the valve assembly adhesive exit aperture. 14. A filter plate for filtering an adhesive-comprising: a) a proximal surface configured to face a housing of a heater;b) a distal surface configured to face a housing of a valve assembly;c) a filter plate width;d) a filter plate length;e) a filter plate thickness extending from the proximal surface to the distal surface;f) a filter plate adhesive recess extending from the proximal surface towards the distal surface;g) a filter plate adhesive exit aperture located in a wall of the filter plate forming the adhesive recess and extending through the distal surface; andh) a plurality of generally straight ribs, the ribs each having a rib base attached to a wall of the filter plate forming the adhesive recess and a rib apex extending proximally from the basewherein said filter plate adhesive exit aperture has a proximal end located in said adhesive recess, a distal end located at said distal surface, and a length extending from said proximal end to said distal end;and further wherein said proximal end of said filter plate adhesive exit aperture is located adjacent to a rib base. 15. The filter plate of claim 14, wherein the filter plate comprises a filter screen located in the adhesive recess. 16. The filter plate of claim 15, wherein the filter screen is proximally disposed relative to the plurality of generally straight ribs. 17. The filter plate of claim 10, wherein the filter plate further comprises a plurality of fastener apertures for removably attaching the filter plate between the heater and the valve assembly. 18. The filter plate of claim 10, wherein the filter plate has a filter plate thickness extending from the proximal surface to the distal surface and the filter plate thickness is from about 3 to about 7 mm. 19. The filter plate of claim 10, wherein the filter plate further comprises an air aperture so that air may be delivered from the heater housing to the valve assembly housing and further wherein the filter plate further comprises an O-ring encircling the air aperture. 20. The filter plate of claim 10, wherein the filter plate is configured for temperatures between 250° F. and 450° F. 21. The filter plate of claim 10, wherein the plurality of ribs each have a longitudinal axis parallel to one of the filter plate width and the filter plate length. 22. The filter plate of claim 14 wherein each rib apex points in the proximal direction. 23. An adhesive filtration system comprising: a) a heater configured to heat an adhesive to a temperature of from about 250° F. to about 450° F., the heater comprising a heater housing and an adhesive exit aperture located in the heater housing for dispensing an adhesive;b) a valve assembly housing having a proximal surface comprising a recess and a distal surface, the recess extending from the proximal surface towards said distal surface;c) a valve assembly adhesive entrance aperture located in a wall of the valve assembly forming the recess for allowing the adhesive to enter the housing;d) a plurality of ribs, the ribs each having a rib base attached to a wall of the valve assembly housing forming the recess and a rib apex extending proximally from the base;e) a valve assembly adhesive exit aperture for allowing the adhesive to exit the valve assembly housing; andf) a valve having an open position in which the valve permits the adhesive to exit the valve assembly housing via the valve assembly adhesive exit aperture and a closed position in which the valve prevents the adhesive from exiting the valve assembly housing via the valve assembly adhesive exit aperture, wherein said proximal end of said valve assembly entrance aperture is located adjacent to a rib base. 24. The adhesive filtration system of claim 23, wherein the filter plate comprises a filter screen located in the recess. 25. The adhesive filtration system of claim 24, wherein the filter screen is proximally disposed relative to the plurality of ribs. 26. The adhesive filtration system of claim 23, wherein the plurality of ribs are generally straight. 27. A method of filtering an adhesive comprising, a) providing an adhesive filtration system comprising: i) a heater for heating an adhesive, the heater comprising a heater housing and an adhesive exit aperture located in the heater housing for dispensing an adhesive;ii) a valve assembly housing having a proximal surface comprising a recess and a distal surface, the recess extending from the proximal surface towards said distal surface;iii) a valve assembly adhesive entrance aperture located in a wall of the valve assembly forming the recess for allowing the adhesive to enter the valve assembly housing, the valve assembly entrance aperture having a proximal end located in said recess, a distal end located in said valve assembly housing, and a length extending from said proximal end to said distal end;iv) a plurality of ribs, the ribs each having a rib base attached to a wall of the valve assembly housing forming the recess and a rib apex extending proximally from the base;v) a valve assembly adhesive exit aperture for allowing the adhesive to exit the valve assembly housing; andvi) a valve having an open position in which the valve permits the adhesive to exit the valve assembly housing via the valve assembly adhesive exit aperture and a closed position in which the valve prevents the adhesive from exiting the valve assembly housing via the valve assembly adhesive exit aperture wherein said proximal end of said valve assembly entrance aperture is located adjacent to a rib base;b) heating the adhesive in the heater;c) opening the valve; andd) flowing the adhesive from the heater adhesive exit aperture, through a filter screen, through the valve assembly adhesive entrance aperture, into the valve assembly housing and out of the valve assembly adhesive exit aperture.
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