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Class Information
Number: 137/382
Name: Fluid handling > With casing, support, protector or static constructional installations > Guards and shields > Valve guards
Description: Guards and shields in which the valve member of a fluent material device (1) is enclosed in a casing which is locked against unauthorized use of the valve; or (2) has an internal key which is fastened to another object to prevent movement of the valve to an unauthorized position; or (3) in which the valve is totally or partially enclosed in a casing or shield or has casings covering all or part of the operating handle or stem or a valve to protect the stem or operating handle against damage or unintentional movement to or from a desired position.










Sub-classes under this class:

Class Number Class Name Patents
137/382.5 With means for accommodating a detachable actuator 61


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
6651483 Low leak gas density monitor assembly Nov. 25, 2003
6648009 Tamper-proof ball valve Nov. 18, 2003
6578600 Gas isolation box Jun. 17, 2003
6568420 Valve box May. 27, 2003
6568421 Pressure vacuum breaker cover assembly May. 27, 2003
6561215 Natural gas wellhead enclosure May. 13, 2003
6540212 Carburetor valve rotational setting retainer assembly Apr. 1, 2003
6536462 Fire hydrant cover Mar. 25, 2003
6532985 Further enhanced features for backflow prevention device enclosure Mar. 18, 2003
6530576 Protective closure Mar. 11, 2003
6523563 Modular gas panel closet for a semiconductor wafer processing platform Feb. 25, 2003
6520201 Insulated backflow device cover Feb. 18, 2003
6484748 Water pedestal Nov. 26, 2002
6474621 Water control apparatus for showers Nov. 5, 2002
6467757 Carburetor valve adjustment limiter cap assembly Oct. 22, 2002
6467500 Ball valve locking device Oct. 22, 2002
6463953 Fire hydrant protection device Oct. 15, 2002
6453948 Valve arrangement Sep. 24, 2002
6439262 Pressure-adjusting mechanism Aug. 27, 2002
6431194 Condensate removal protection apparatus and method therefore Aug. 13, 2002
6415812 Control equipment for keeping light oil vapor at stable pressure and constant temperature Jul. 9, 2002
6412515 Pressure transducer assembly with heat insulating elements for stub line support Jul. 2, 2002
6402124 Carburetor fuel mixture adjustment assembly Jun. 11, 2002
6397882 Pressure vacuum breaker cover assembly Jun. 4, 2002
6397883 Equipment skid Jun. 4, 2002
6390119 Manway cover system May. 21, 2002
6371155 Faucet lock Apr. 16, 2002
6354116 Valve cover for preventing unauthorized tampering with a valve Mar. 12, 2002
6311720 Cover for protecting piping assemblies with engagement rod Nov. 6, 2001
6311722 Composite open bonnet for large industrial and medical gas cylinders Nov. 6, 2001
6305400 Medical gas emergency delivery system and method Oct. 23, 2001
6302383 Tamper resistant device for engine adjuster Oct. 16, 2001
6302384 Needle valve carburetor Oct. 16, 2001
6293301 Backflow prevention device enclosure having improved access Sep. 25, 2001
6283143 System and method for providing an integrated gas stick Sep. 4, 2001
6263914 Gas density monitor assembly Jul. 24, 2001
6254059 Electrically operated flow control valve Jul. 3, 2001
6247491 Childproof cover for compressed gas valves Jun. 19, 2001
6216725 Fluid pressure control device with cover for preventing misoperation Apr. 17, 2001
6209574 Freon lock box Apr. 3, 2001
6209749 Gas cylinder safety shield Apr. 3, 2001
6206030 Insulating cover for water backflow prevention apparatus Mar. 27, 2001
6206033 Valve safety lockout and method for using Mar. 27, 2001
6199580 Valve manifold box and method of making same Mar. 13, 2001
6192919 Chemical delivery and containment system employing mobile shipping crate Feb. 27, 2001
6192918 Pressure vessel assembly Feb. 27, 2001
6173733 Enclosure for compact design backflow prevention device Jan. 16, 2001
6170518 Apparatus for holding and transporting high pressure rescue air bag system components Jan. 9, 2001
6170306 Valve security guard Jan. 9, 2001
6164317 Sewer pipe cover assembly Dec. 26, 2000

1 2 3 4 5 6 7 8










 
 
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