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Class Information
Number: 277/907
Name: Seal for a joint or juncture > Passageway in rod or shaft
Description: Sealing means including a pathway for a fluid in a part (e.g., rod, shaft) relatively movable to and surrounded by another part (e.g., housing, casing, etc.).










Patents under this class:
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Patent Number Title Of Patent Date Issued
6439577 Rotating seals for cell processing systems Aug. 27, 2002
6089575 Sealed seat for a hydraulic switching element in a mounting space for a direct-controlled cartridge valve in an insertion bore Jul. 18, 2000
5632494 Seal ring and seal device May. 27, 1997
5603608 Methods and apparatus for monitoring progressive cavity pumps Feb. 18, 1997
5593165 Circumferential flow channel for carbon seal runner cooling Jan. 14, 1997
5421892 Vertical heat treating apparatus Jun. 6, 1995
5356320 Seal arrangement for propeller shafts of ships Oct. 18, 1994
5331884 Fluid cylinder with cooling passages Jul. 26, 1994
5277153 Soot blower seal-bearing arrangement Jan. 11, 1994
5214994 Seal ring with attached biasing means Jun. 1, 1993
5147494 Seal device for tire pressure-adjusting device Sep. 15, 1992
5098026 Easy access pop off relief valve Mar. 24, 1992
5088890 Seal construction for use in a turbine engine Feb. 18, 1992
5080157 Seal for use between relatively rotating members Jan. 14, 1992
5072948 Seal assembly for a high speed machining system Dec. 17, 1991
5067753 Hydrostatically balanced rotary hydraulic connector Nov. 26, 1991
5064040 Splined clutch drum mounting Nov. 12, 1991
5052278 Fluid cylinder with improved wear rings Oct. 1, 1991
5042846 Method and system maintaining tightness between parts rotating in relation to one another Aug. 27, 1991
5018749 Slide ring seal May. 28, 1991
4903786 Earth boring bit with improved two piece bearing and seal assembly Feb. 27, 1990
4846728 Floating seal arrangement for centrifugal separators and like rotating apparatus Jul. 11, 1989
4844124 Hydrostatic rotary connector with pressure-equalizing or compensating element Jul. 4, 1989
4786061 Safety rotary transmission with face seal Nov. 22, 1988
4753304 Volume and pressure balanced rigid face seal for rock bits Jun. 28, 1988
4752077 Sliding ring seal Jun. 21, 1988
4738273 Apparatus for continuous cooling of elongated elements Apr. 19, 1988
4708711 Pressure centrifuge Nov. 24, 1987
4634134 Mechanical seal Jan. 6, 1987
4613159 Pressure-assisted dynamic seal apparatus Sep. 23, 1986
4575015 Fluid coupling device Mar. 11, 1986
4524977 Underwater bearing protection device Jun. 25, 1985
4502699 Rotating seal for continuous flow centrifuge Mar. 5, 1985
4491160 Pressurized fluid device Jan. 1, 1985
4489953 Fire-safe seal for swivel joint Dec. 25, 1984
4478247 Fluid coupling for hollow rotary member Oct. 23, 1984
4453698 Stuffing box with O-ring detent for control mechanism of emergency valve Jun. 12, 1984
4395833 Sealing and lubricating system for a dredge Aug. 2, 1983
4384724 Sealing device May. 24, 1983
4384725 Liquid lubricant seal with oleophobic coating May. 24, 1983
4368895 Shaft sealing device utilizing a non-uniform groove depth Jan. 18, 1983
4364241 Device for draining cooling liquid from rotary electric machine with liquid cooled rotor Dec. 21, 1982
4363490 Crown roll seal arrangement sealed by lubricating oil in labyrinth Dec. 14, 1982
4358937 Device for conducting cooling liquid in and out of liquid cooled rotor type rotary electric machine Nov. 16, 1982
4327586 Stuffing box for introducing instrument into high pressure conduit May. 4, 1982
4302019 Labyrinthine mechanical seal Nov. 24, 1981
4294454 Rotary seal unit Oct. 13, 1981
4268044 Fluid connections to rotary members May. 19, 1981
4183540 Mechanical shaft seal Jan. 15, 1980
4164264 High pressure sealing apparatus Aug. 14, 1979

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