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Class Information
Number: 277/529
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 > Having particular cross-sectional seal profile
Description: Seal for the gland and packing box wherein the seal has a specific shape in a view of a vertical plane cutting across the seal at right angles to one of its principle horizontal dimensions.










Sub-classes under this class:

Class Number Class Name Patents
277/530 C-, m-, u-, v-, x-, or z-shaped 112
277/531 Wedging surface 24


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8661828 Sealing between a combustion chamber and a turbine nozzle in a turbomachine Mar. 4, 2014
8657299 Mounting rings for shafts Feb. 25, 2014
8439330 Stem shoulder seal with double rings and an assembly of independent dual stem seals May. 14, 2013
7971854 Replaceable valve shaft sealing system Jul. 5, 2011
7954823 Sealing ring for reciprocating motion Jun. 7, 2011
7484609 Hub assembly for a bicycle Feb. 3, 2009
7216872 Seal for use with pipe and flange assemblies May. 15, 2007
7086650 Gland packing Aug. 8, 2006
7017915 Stem or shaft seal arrangement Mar. 28, 2006
6769695 Back-up rings for high pressure seals, packing assembly, and pumps incorporating same Aug. 3, 2004
6644007 Braiding yarn made of expanded graphite Nov. 11, 2003
6640823 Fitting Nov. 4, 2003
6572117 Gland packing Jun. 3, 2003
6568689 Gland packing May. 27, 2003
6443423 Load-profile compensating stuffing-box packing system for valves having stems of uniform cross-section Sep. 3, 2002
6386644 Bicycle hub provided with a seal member for preventing entrance of dust May. 14, 2002
6322155 Hub transmission mechanism with a seal member Nov. 27, 2001
6318729 Seal assembly with thermal expansion restricter Nov. 20, 2001
6283740 Rotary lobe pumps Sep. 4, 2001
6273431 Forged valve stem packing set Aug. 14, 2001
6076831 Switch fitting Jun. 20, 2000
6062570 Stem sealing system for broad temperature ranges May. 16, 2000
5860633 Valve seal Jan. 19, 1999
5755372 Self monitoring oil pump seal May. 26, 1998
5524902 Method and cartridge seal for packaging a valve Jun. 11, 1996
5513556 Packing gland construction May. 7, 1996
5476271 Shaft compression packing Dec. 19, 1995
5419568 Method and apparatus for reducing packing ring spin for trapezoidally shaped mechanically braided packing May. 30, 1995
5333883 Stuffing box seal Aug. 2, 1994
5297805 Sealing ring Mar. 29, 1994
5022660 Lantern ring coil Jun. 11, 1991
4991857 Stuffing box assembly Feb. 12, 1991
4907780 Combined seal and actuator support Mar. 13, 1990
4834394 Sealed universal movement of a shaft extending between environments May. 30, 1989
4832352 Piston rod seal May. 23, 1989
4809993 Stuffing box sealing device Mar. 7, 1989
4807890 Sealing combination Feb. 28, 1989
4645212 Seal arrangement Feb. 24, 1987
4583722 Nitrogen die cylinder Apr. 22, 1986
4560176 Inverted cone stuffing box Dec. 24, 1985
4560109 Shaft sealing device for sliding portion of needle valve in paint spray gun Dec. 24, 1985
4553759 Valve and improved stem seal therefor Nov. 19, 1985
4529181 Fluid die spring Jul. 16, 1985
4524981 Annular seal with V-cut Jun. 25, 1985
4516752 Mechanically preloaded packing assembly May. 14, 1985
4489916 Valve and stem seal therefor Dec. 25, 1984
4486002 Combined metallic and flexible non-metallic pressure seal Dec. 4, 1984
4478423 Oil seal and unitized seal carrier for reciprocating shaft Oct. 23, 1984
4462568 Valve construction and method of making the same Jul. 31, 1984
4436316 Fluid seal Mar. 13, 1984

1 2










 
 
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