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Class Information
Number: 137/244
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Cleaning or steam sterilizing > Mechanical cleaning > Cleaning member reciprocates in passage
Description: Systems in which the fluent material system has a member which has a reciprocating movement to enter a restricted passage of the system to clean either or both parts, either the member, the passage or the movement being nonworking characteristics of the system; i.e., not contributing to the fluid flow causing or controlling function of the system, though the member or passage may be carried by a working part of the system.

Sub-classes under this class:

Class Number Class Name Patents
137/245 By-pass cleaning 8
137/245.5 Independent actuation 21

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8684023 Roddable direct mount manifold for primary flow element Apr. 1, 2014
8671981 Freeze robust anode valve and passage design Mar. 18, 2014
8544134 Tight space, inside boat thruhole fitting clearing Oct. 1, 2013
8522807 Arrangement and method for unloading raw material Sep. 3, 2013
8296892 Inside boat thruhole fitting clearing Oct. 30, 2012
8074672 Inertially activated ejection valve Dec. 13, 2011
8074671 Self-cleaning valves for use in vacuum cleaners and other self-cleaning valves Dec. 13, 2011
8025075 Self-cleaning low emission bleeder valve type liquid level gauge Sep. 27, 2011
7445018 Recycling furnace flow management sliding gate valve for low melting temperature metals Nov. 4, 2008
7182096 Self cleaning metering device for diaphragm style flush valve Feb. 27, 2007
7104522 Coking-resistant shaft/bushing mechanism for an exhaust gas recirculation valve Sep. 12, 2006
7051760 Three-way inline piggable branch valve May. 30, 2006
7044153 Varnishing installation May. 16, 2006
6848464 Lined pipe annular venting device Feb. 1, 2005
6746233 Semi-automatic gas pilot orifice clean-out device Jun. 8, 2004
6725875 Valve Apr. 27, 2004
6691731 Corporation stop cleaning device Feb. 17, 2004
6637452 Valve with self-cleaning trim Oct. 28, 2003
6478041 Filler valve filling flat pouch containers Nov. 12, 2002
6332475 Filling stop valve Dec. 25, 2001
6293298 Water softener valve Sep. 25, 2001
6263901 Self cleaning irrigation valve with offset manual on actuator, body/bonnet alignment, and captured screws Jul. 24, 2001
6199576 Bi-directional cleanout with backflow preventer Mar. 13, 2001
6182677 Cleanout fitting for air conditioner evaporator drains Feb. 6, 2001
6131602 Condensate discharge device Oct. 17, 2000
6062530 Lift valve with pressure balanced pilot operated valve member May. 16, 2000
6024114 Solenoid pilot operated air activated piston driven double seat accumulator drain valve Feb. 15, 2000
5996608 Diaphragm valve with filter screen and movable wiper element Dec. 7, 1999
5964243 Tank drain valve with a rod concentric with valve member to pierce sedimentary layer in tank Oct. 12, 1999
5954086 Valve with controlled-action obturator for the metered delivery of fluids in automatic machines for filling containers and the like Sep. 21, 1999
5924672 Valve and actuator in combination Jul. 20, 1999
5915408 Float valve assembly Jun. 29, 1999
5884654 Condensate discharge device Mar. 23, 1999
5775363 Double seat valve with a controlled leakage cavity Jul. 7, 1998
5722454 Fluid flow fuse Mar. 3, 1998
5715858 Globe valve sticking prevention Feb. 10, 1998
5699826 Hazardous gas mixing apparatus with rake for dislodging conduit deposits Dec. 23, 1997
5673897 Valve/actuator combination Oct. 7, 1997
5655560 Clog-free valving system Aug. 12, 1997
5626163 Auto-drain unit May. 6, 1997
5584314 Self-cleaning inlet head for a fluid Dec. 17, 1996
5513624 Weighted needle for cleaning fuel orifice of liquid fuel component stove May. 7, 1996
5503179 Tapping faucet for pouring out beverages, in particular beer Apr. 2, 1996
5370146 Sample valve Dec. 6, 1994
5358005 Solenoid valve with dirt trap Oct. 25, 1994
5309958 Filling apparatus for viscous foods May. 10, 1994
5234018 Sewer check valve and cleanout apparatus Aug. 10, 1993
5213124 Pressure-actuated valve May. 25, 1993
5209257 Sewer relief valve May. 11, 1993
5193572 Pig-compatible three-way butterfly valve Mar. 16, 1993

1 2 3

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