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Class Information
Number: 277/536
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Circumferential contact seal for other than piston > Contained or compressed by gland member in packing box > Particular seal material or construction > Composite > Fibrous component
Description: Composite wherein the composite includes a plurality of slender filamentlike strands.

Sub-classes under this class:

Class Number Class Name Patents
277/537 Braided, woven, or twisted 45

Patents under this class:

Patent Number Title Of Patent Date Issued
8047820 Stuffing box for walking beam compressor Nov. 1, 2011
RE42061 Sealing device Jan. 25, 2011
7309520 Flat packing and method for the production thereof Dec. 18, 2007
7229077 Ordered elastomeric composite material Jun. 12, 2007
6880830 Sealing device Apr. 19, 2005
6568689 Gland packing May. 27, 2003
6273431 Forged valve stem packing set Aug. 14, 2001
6270083 Packing yarn made of graphite foil and plastic foil and method of manufacturing a packing yarn Aug. 7, 2001
6267383 V-shaped seal with anti-extrusion section Jul. 31, 2001
6105596 Sealing system Aug. 22, 2000
5823540 Polymer reinforced fluid seal Oct. 20, 1998
5788216 Valve with perfluoroelastomer packing Aug. 4, 1998
5605341 Knitting yarn for gland packing and gland packing made from the knitting yarn Feb. 25, 1997
5549276 Valve with perfluoroelastomer packing Aug. 27, 1996
5538256 Method for producing a packing arrangement for a hydraulically operated apparatus and a packing arrangement Jul. 23, 1996
5493951 Lubrication and seal ring assembly for pump Feb. 27, 1996
5188376 Gland packing and method of producing same Feb. 23, 1993
4789168 Sealing bush with a sealing packing for high pressures and temperatures Dec. 6, 1988
4577873 Dual valve stem packing arrangement Mar. 25, 1986
4529662 Asbestos-free sheet material for spiral-wound gaskets Jul. 16, 1985
4431698 Waterproof packing Feb. 14, 1984
4379558 Anti-extrusion packing member Apr. 12, 1983
4306728 Sliding surface packing Dec. 22, 1981
4214761 Packing construction Jul. 29, 1980
4062551 Cable seal unit for earth-boring drill strings Dec. 13, 1977
4006881 Fluid-tight packing for closure devices and devices fitted with said packing Feb. 8, 1977

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