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Class Information
Number: 220/237
Name: Receptacles > Closures > Externally adjustable plug or gasket > Closure carried gasket and expander means > Screw actuated > With wedging expander
Description: Device wherein the expander member is provided with a tapered surface which engages and expands the deformable means.

Patents under this class:

Patent Number Title Of Patent Date Issued
8534484 Sealing cover assembly for an underground utility box Sep. 17, 2013
8403007 Rivet plumbing repair apparatus and method Mar. 26, 2013
8333219 Plug for setting in a pipe Dec. 18, 2012
8312898 Plug with engagement members Nov. 20, 2012
7954517 Rivet plumbing repair apparatus and method Jun. 7, 2011
7832581 Closure and methods for placing and removing such a closure Nov. 16, 2010
7334607 Protective cap for a sealing stopper in a collecting vessel of a condenser Feb. 26, 2008
6877529 Sealing cap in particular for a collector tube in an air-conditioning unit for vehicles Apr. 12, 2005
6367415 View port of a chemical vapor deposition device for manufacturing semiconductor devices Apr. 9, 2002
6360790 Apparatus and method for filling a motor vehicle cooling system with coolant Mar. 26, 2002
6234215 Apparatus and method for filling a motor vehicle cooling system with coolant May. 22, 2001
6189718 Fluidtight seal for a container Feb. 20, 2001
6152193 Apparatus and method for filling a motor vehicle cooling system with coolant Nov. 28, 2000
5945040 Apparatus for compound movement of an aeration unit Aug. 31, 1999
5797431 Inner diameter pipe plug Aug. 25, 1998
5337598 Leak test port plug Aug. 16, 1994
5307841 Test plug for waste pipe May. 3, 1994
5297691 Closure plug and methods of employing the same to maintain a fire-rated barrier Mar. 29, 1994
5230437 Viewport assembly Jul. 27, 1993
5078294 Method for tight sealing and hole arrangement Jan. 7, 1992
5044403 Dirt and moisture sealing pipe plug for sealing different size pipe Sep. 3, 1991
5038830 Pipe and sealing device Aug. 13, 1991
5035266 Mechanical plug for clean-out tees Jul. 30, 1991
4567994 Container closure having internal fastening means Feb. 4, 1986
4440309 Hermetical stopper for liquid receptacle Apr. 3, 1984
4385643 Plug for high-pressure testing of tubes May. 31, 1983
4303101 End plug assembly for sewer pipe Dec. 1, 1981
4282982 Tube closure device Aug. 11, 1981
4282982 Tube closure device Aug. 11, 1981
4188675 Conduit plug Feb. 19, 1980
4084330 Flask for freeze drying with adjustable seal Apr. 18, 1978
4024893 Pipe proof test fixture May. 24, 1977
3933180 Methods and apparatus for making fiber reinforced plastic pipe Jan. 20, 1976

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