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Class Information
Number: 285/101
Name: Pipe joints or couplings > With fluid pressure seal > With expansible chamber means > Piston-type reactor
Description: Devices in which a piston with a restricted orifice is slidably mounted in the flow path and is forced by the line flow against a gasket to make or enhance the seal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7367351 |
Tap pressure balance valve |
May. 6, 2008 |
| 7314238 |
Fluid connection |
Jan. 1, 2008 |
| 7222887 |
Fluid operated contractile drive |
May. 29, 2007 |
| 6572154 |
Threadless flared tube fitting for connecting flow conductors |
Jun. 3, 2003 |
| 6454309 |
Connector adapter, especially for quick test connectors |
Sep. 24, 2002 |
| 6412823 |
Rotating connector with compensating unit |
Jul. 2, 2002 |
| 6158780 |
Coupling for use in supplying air pressure to an air driven pump on a pallet |
Dec. 12, 2000 |
| 6092785 |
Device for transferring fluids from a stationary to a rotating machine part |
Jul. 25, 2000 |
| 6073971 |
Fitting arrangement |
Jun. 13, 2000 |
| 5927683 |
Rapid connection coupling |
Jul. 27, 1999 |
| 5799985 |
Tube testing connector |
Sep. 1, 1998 |
| 5735553 |
Flared tube fitting for connecting flow conductors |
Apr. 7, 1998 |
| 5711550 |
Connecting device for pipelines |
Jan. 27, 1998 |
| 5707186 |
Chuck with an integrated rotary union for fluid flow |
Jan. 13, 1998 |
| 5704650 |
Laminated label form with removable portions |
Jan. 6, 1998 |
| 5533762 |
Assembly device of an element on a part presenting a fluid channel |
Jul. 9, 1996 |
| 5509698 |
Axially extendible conduit |
Apr. 23, 1996 |
| 5456501 |
Pipeline connection apparatus |
Oct. 10, 1995 |
| 5439029 |
Rotary leadthrough |
Aug. 8, 1995 |
| 5433482 |
Weldless pipe repair apparatus and method |
Jul. 18, 1995 |
| 5364086 |
Composite elastomeric air spring and sealing structure |
Nov. 15, 1994 |
| 5332233 |
Face seal means |
Jul. 26, 1994 |
| 5257824 |
Extender for a plumbing mount with spring loaded sealing piston |
Nov. 2, 1993 |
| 5219183 |
Printable sheet having separable card |
Jun. 15, 1993 |
| 5193850 |
Pressure seal Z-fold with transfer tape |
Mar. 16, 1993 |
| 5163722 |
Connection apparatus with ferrule forming structure |
Nov. 17, 1992 |
| 5150925 |
Hose fitting |
Sep. 29, 1992 |
| 5150924 |
Hose fitting |
Sep. 29, 1992 |
| 5149145 |
Hose fitting |
Sep. 22, 1992 |
| 5139287 |
Coupling unit |
Aug. 18, 1992 |
| 5112087 |
Pipe joint |
May. 12, 1992 |
| 5102170 |
Pipe joint |
Apr. 7, 1992 |
| 5098132 |
Length compensating joint |
Mar. 24, 1992 |
| 5090741 |
Hose end fitting |
Feb. 25, 1992 |
| 5076614 |
Hose fitting |
Dec. 31, 1991 |
| 5060982 |
Coupling socket with cam lever and reciprocating sleeve |
Oct. 29, 1991 |
| 4984826 |
Hose connection assembly |
Jan. 15, 1991 |
| 4976282 |
Coolant union with fluid actuated seal assembly |
Dec. 11, 1990 |
| 4921125 |
Support assembly |
May. 1, 1990 |
| 4906028 |
Hose connection assembly |
Mar. 6, 1990 |
| 4906030 |
Hose fitting |
Mar. 6, 1990 |
| 4884584 |
Internally preloaded metal-to-metal seal hydraulic connector |
Dec. 5, 1989 |
| 4863314 |
Hydraulic stab connector, frictionless |
Sep. 5, 1989 |
| 4858961 |
Rotary joint |
Aug. 22, 1989 |
| 4815650 |
Hydraulically activated welding flange |
Mar. 28, 1989 |
| 4812105 |
Bell seal and retaining nut for high pressure turbines |
Mar. 14, 1989 |
| 4787654 |
Flange connection with improved seal and bolt-nut design |
Nov. 29, 1988 |
| 4775171 |
High pressure field repair coupling |
Oct. 4, 1988 |
| 4761023 |
Telescoping joint |
Aug. 2, 1988 |
| 4759572 |
Tube connector |
Jul. 26, 1988 |
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