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Class Information
Number: 285/409
Name: Pipe joints or couplings > Flange > Clamped > Band type > Lever
Description: Devices in which the ring is tightened about the flanges by a lever means.


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7547046 Pneumatic conveying line component Jun. 16, 2009
7445252 Connecting device Nov. 4, 2008
7240930 Quick-connect/quick-disconnect conduit connectors Jul. 10, 2007
7004512 Indented apex V-retainer coupling with cushion Feb. 28, 2006
6811191 Coupling assembly for connecting corrugated conduit Nov. 2, 2004
6758500 Flared ends conduit coupling Jul. 6, 2004
6755445 Fitting Jun. 29, 2004
6672631 Pipe coupling with rapid acting closure Jan. 6, 2004
6564669 Remote handling device May. 20, 2003
6050615 Pipe coupling having clamp halves and quick-action closure Apr. 18, 2000
5988694 Pipe coupling clamp with locking lever Nov. 23, 1999
5645303 Compact pipe coupling device Jul. 8, 1997
5620210 Fluid conduit coupling Apr. 15, 1997
5597184 Quick release clamp for bonnet and flange of gate valves Jan. 28, 1997
5586367 Hook closure for boot Dec. 24, 1996
5522625 Coupling device Jun. 4, 1996
5509702 Low distortion pipe coupling device Apr. 23, 1996
5411349 Apparatus for coupling cylindrical structural components to each other May. 2, 1995
5380052 Releasable handle-type fastener for pipe couplings Jan. 10, 1995
5366263 Releasable fastener for pipe couplings Nov. 22, 1994
5359866 Latching holder Nov. 1, 1994
5351368 Clamping device for clamping a protective hood on the clamping collar of a hand-operated machine tool Oct. 4, 1994
5090599 Seal for a beverage tap Feb. 25, 1992
5088775 Seal ring with flanged end portions Feb. 18, 1992
4969923 Safety latch Nov. 13, 1990
4730850 Quick release coupling device Mar. 15, 1988
4717048 Beverage tap Jan. 5, 1988
4705305 Coupling and clamping device Nov. 10, 1987
4660869 Connection for pipes Apr. 28, 1987
4643460 High pressure concrete line coupling clamp with limit adjust apparatus Feb. 17, 1987
4639979 Barbell collar Feb. 3, 1987
4622997 Emergency release couplers Nov. 18, 1986
4573717 Toggle clamp Mar. 4, 1986
4561678 Pipe coupling Dec. 31, 1985
4556241 Device to connect hose or pipe ends Dec. 3, 1985
4496176 Device for connecting flanged pipes Jan. 29, 1985
4492005 Conduit clamp (case 1) Jan. 8, 1985
4490891 Line clamp Jan. 1, 1985
4485530 Conduit case (case 2) Dec. 4, 1984
4472863 Adjusting plate retainer Sep. 25, 1984
4465330 Clam-shell coupling for joining beaded tubes Aug. 14, 1984
4438958 Clam-shell coupling for joining beaded tubes Mar. 27, 1984
4306739 Quick-release connecting device for flanged hydraulic components Dec. 22, 1981
4272871 Hose coupling Jun. 16, 1981
4237936 Pig trap closure Dec. 9, 1980
4164804 Latch device Aug. 21, 1979
4123095 Pipe clamp having an overcenter toggle Oct. 31, 1978
4008937 Coupling assembly Feb. 22, 1977
3979143 Device for detachably fastening hose or pipe ends Sep. 7, 1976
3964774 Irrigation line coupler Jun. 22, 1976

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