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Class 29/890.121 - Repairing, converting, servicing or salvaging


Subclass of Class 29 - Metal working
Definition: Process wherein an existing valve or choke is (1) restored
No. of patents: 45
Last issue date: 11/01/2011


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NumberTitleIssue Date
8046917Method of refurbishing a diesel injector valve seat
A method to refurbish a valve seat in a fuel injector module housing where the valve seat is of a larger diameter than an associate valve guide bore user using an indexable insert insertable into the bore and oriented in a manner to engage the valve seat to facilita...
11/01/2011
7984550Fuel injector remanufacturing method and remanufactured fuel injector
A remanufacturing and salvaging strategy for fuel injector tips such as high flow fuel injector tips includes blocking a first set of spray orifices in the fuel injector tip, including at least partially filling the first set of spray orifices with a material, for e...
07/26/2011
7703205Method of refurbishing a high-pressure plug valve
A high-pressure plug valve is refurbished by replacing a valve plug, a valve plug cage, and flow path inserts that line a flow path through the plug valve. The valve plug cage has first and second opposed flat side surfaces, each side surface has a port for receivin...
04/27/2010
7587824Flow control valve and method for rebuilding a flow control valve
A method for rebuilding a flow control valve, may be performed by first providing a flow control valve having a rotor positioned in a chamber of a valve body. The rotor has a valve stem. A top cover plate is mounted to the valve body above the rotor and has a first ...
09/15/2009
7536786Method for replacing an open-close valve for a hydrogen storage tank
A hydrogen storage tank (11) and method for replacing an open-close valve that prevents oxidizing of a hydrogen absorption alloy (MH) accommodated in a tank body (12) when replacing an open-close valve (30) connected to a hydrogen supply-release...
05/26/2009
7273026Roller follower body
The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i...
09/25/2007
6971946Manufacturing method of roller of film or tape handling machine
A lot of concave portions and convex portions are formed on a circumferential face of base metal cylinder or roller. Summits of the convex positions are ground and removed or erased. The base metal cylinder or roller is plated and coated to harden the circumferentia...
12/06/2005
6832623Gas meter valve and method
Disclosed is a gas meter valve for connection to an outlet of a gas meter and a method for its use. The gas meter valve comprises a valve inlet coupleable to the meter outlet, a valve outlet coupleable to piping for supplying gas to a customer and a valve body coupl...
12/21/2004
6574843Method and apparatus for installing and replacing valve stems
A method and apparatus for installing and replacing a valve stem from the valve stem rim opening defined in the rim of a tubeless tire from the outside of the rim, such tool including a threaded rod for engaging the valve stem and pulling the valve stem t...
06/10/2003
6568059Treadle valve vise with rotatable couplings
A tool and a method for replacing brake system components for automotive vehicles. The tool is designed to rotatably secure a worn or defective treadle valve side by side with a rotatably secured replacement treadle valve. The treadle valves can be rotate...
05/27/2003
6469271Method and apparatus for refurbishing valves
A method and apparatus for in situ refurbishment of valve seats are disclosed in which a worn valve seat is initially ground to a flat surface, a buildup of weld metal is deposited on the flat surface, and the weld buildup is machined to the final dimensi...
10/22/2002
6339877Method and apparatus for refurbishing a valve seat in a fuel injector assembly
An apparatus and method of refurbishing a valve seat disposed at a predetermined angle relative to the centerline of an associated valve bore in a workpiece wherein the apparatus includes a support structure on which the workpiece is located such that the...
01/22/2002
6253436Universal valve core removal tool and kit
A tool for a pressurized refrigeration system having a valve with a removable valve core comprises: a valve assembly having a first opening and a second opening and a shut-off valve, the shut-off valve adapted to close and open a passageway between the fi...
07/03/2001
6056263Valve with constrictions to adjust stroke length
A fuel injection valve for internal combustion engines in which the adjustment of the valve needle stroke is carried out through a deformation of a valve seat carrier. The adjustment of the valve needle stroke is carried out through a plastic deformation ...
05/02/2000
6003536Automatic water shut-off valve
An electrically actuated flow control device for use with an electrical household appliance includes a single body defining first and second flow passages. Inlet ends of the flow passages connect to pressurized sources of hot and cold water, and outlet en...
12/21/1999
5931443Method of rebuilding annular-type blow out preventer
A method of rebuilding an annular blow out preventer of the type having a head with threads that attach it to the body of the blow out preventer involves the removal of about 1 to 11/2) of the threads (e.g., if total thread revolutions equal seven (7) rev...
08/03/1999
5908044Quadra-seal method and apparatus for operations upon fluid pressure containment bodies
An apparatus for injecting sealant into the packing chamber of a valve requiring no venting of pressure within the valve. The apparatus which includes an interior valve is attached to the valve body by drilling and tapping a connection or by friction weld...
06/01/1999
5878769Maintenance method and maintenance kit for a gate valve
The maintenance method is for a gate valve. The method comprises the steps of closing the gate valve; removing sequentially the hand wheel, the gland flange, the gland and the packing from the stem of the gate valve; mounting a first clamp onto the gate v...
03/09/1999
5669404Apparatus and method for replacing the diverter valve assembly in a faucet
The invention herein disclosed is directed to a series of tools for repairing and replacing diverter valves. The tools are capable of functioning in many phases of diverter valve repair and replacement....
09/23/1997
5503177Repair device for fluid distribution valves
The present invention features a retrofit, stop replacement device for the repair of damaged, rusted or corroded stop limits or abutments of distribution valves. The repair device is made up of a guide plate that fits over the facial portion of the distri...
04/02/1996
5442845Injection blow mold core rod assembly adjusting tool and method
A unitary tool and method for adjusting and measuring the valve stroke in an injection blow mold core rod assembly which utilizes a lock/star nut and cam/hex nut arrangement to limit valve stroke. The tool is mountable on the end of the core rod and inclu...
08/22/1995
5249360Method of reconditioning valves
An inlet valve reconditioning process is disclosed which includes soaking the inlet valve, as removed from a valve body, in a cleaning solution for a period of time sufficient to loosen foreign material from all exposed surfaces of the valve, disassemblin...
10/05/1993
5230128Apparatus for replacing discharge valves in air compressors
A cage for properly positioning replacement valves and bores holds an assembly of a valve member and valve cone in proper relative position during replacement of the valve assembly in the bore of an air compressor....
07/27/1993
5139042Valve seat and method of repair
A valve seat for a valve used with a treater tank comprising a body having a generally cylindrical bore therethrough, the body having a first end, a second end and being made of metal, the first end having a counterbore concentric with the cylindrical bor...
08/18/1992
5129145Valve reconditioning process
A valve restoration process including the steps of disassembling the valve into its component parts, applying a cleaning solution to a choke portion, a spring retainer portion, a body portion, a valve seat portion and a valve stem portion of such valve an...
07/14/1992
5062439Method and apparatus to facilitate the injection of sealant into a pressurized fluid member
A method and apparatus are provided for injecting sealant into a packing assembly chamber surrounding a valve stem 11 of a valve 2 without venting the pressure within the valve 2. A cylindrical body 60 is frictionally welded to the exterior of the valve 2...
11/05/1991
5052428Valve repair device
The present invention provides a repair device for a cracked valve. The present invention is a valve with at least one crack on the packing nut or threaded portion thereof wherein the valve has a repair device for the crack installed thereon. The repair d...
10/01/1991
5052427Method and apparatus to facilitate the injection of sealant into a pressurized fluid member
A method and apparatus are provided for injecting sealant into a packing assembly chamber surrounding a valve stem 11 of a valve 2 without venting the pressure within the valve 2. A cylindrical body 60 is frictionally welded to the exterior of the valve 2...
10/01/1991
5042151Method for removing and inserting valve seats
A method for removing and inserting a tubular frusto-conical seat (26) from the seat cavity (22) of a valve chamber (20) in a valve body (12). The tool (46) for performing the method has a laterally extending protuberance (60) on its inner end adapted to ...
08/27/1991
5031314Method of measuring joint gaps and restoring same
The method of the present invention uses a combination of gap measurement methods to map the gap in a joint in a high pressure vessel such as a steam turbine or steam valve. An exposed and supported surface is hydraulically balanced allowing any twisting ...
07/16/1991
5016349Method for manufacture or repair of a globe valve
Method for the manufacture or repair of a globe valve. The valve housing (1) is assembled by welding out of two or more parts around a closing member (4) shaped as a part of the face of a globe and provided with a flow opening (3), and the shaft (5) of ro...
05/21/1991
4677723Valve bridge construction method
An improved valve bridge assembly and improved method of manufacturing the same, both new and rebuilt, are disclosed. The valve bridge is of the type that actuates the exhaust valves in larger internal combustion engines, such as locomotive diesel engines...
07/07/1987
4607421Method and apparatus for determining spring preloading in a fluid handling device
Required preloading of a valve closing spring (80) in a pressure operated, fluid handling device (10) is determined by mechanically precompressing the spring, applying operating pressure to the device and relieving the bias on the spring until the operati...
08/26/1986
4605031Method of and device for repairing slide-valve spindles
Disclosed are a method of and a device for repairing a damaged upright spindle which is vertically movable, in a tubular attachment secured to a flange of a valve housing interconnecting two pipe sections, for raising and lowering a slider to block and un...
08/12/1986
4593445Apparatus and process for refurbishing valves
An apparatus and a method for remotely refurbishing valve seats are disclosed herein. The apparatus generally comprises a welding assembly having a welding head for depositing a bead of metal around the valve seat, and a positioning assembly detachably mo...
06/10/1986
4531272Valve assembly method
A method of making a replacement valve assembly, and the replacement valve assembly are provided in which an existing valve assembly is removed from the valve and used as a guide to make the replacement valve assembly. A threaded rod is cut to a length in...
07/30/1985
4262402Method for servicing a steam generator
A servicing machine for a steam generator is accurately set up in the generator channel head with a pivoted arm mounted for rotation in a plane parallel to the tubesheet. The angular position of the arm, the longitudinal position of a carriage mounted on ...
04/21/1981
4218811Method for repairing damaged bleeder valve apertures
There is disclosed herein a method for repairing a bleeder valve aperture on a disc brake caliper or the like and a device for use in practicing this method thereby eliminating the necessity of replacing the caliper housing. The repair method includes the...
08/26/1980
4184504Wellhead valve removal and installation tool
A tool for removing and replacing wing valves or master valves on an operating wellhead under pressure includes an elongated housing with a fluid coupling on one end for connecting to the outlet end of a wellhead valve and a packing assembly extending fro...
01/22/1980
4175581Apparatus for removing a fitting
Apparatus is provided to move a fitting relative to a hole provided through the wall of a water main or the like. The apparatus includes a housing provided with an internal chamber communicating with the atmosphere through two openings. The housing is mou...
11/27/1979
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