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Class 29/229 - Circular spring


Subclass of Class 29 - Metal working
Definition: Apparatus for applying or removing a circular spring, i.e.,
No. of patents: 159
Last issue date: 11/22/2011


1        
NumberTitleIssue Date
8060999Snap ring installation tool
A snap ring installation tool includes a finger gripping portion, a middle portion which is generally integral with the finger gripping portion, an arcuate open cylindrical portion, having an interior surface and a predetermined radius of curvature matching that of ...
11/22/2011
7389571Retaining ring attaching device and data storage
Embodiments of the invention provide a retaining ring attaching device capable of improving assembling efficiency and a data storage device fabricating method. In one embodiment, a C ring attaching device included in a hard disk drive assembling apparatus expands a ...
06/24/2008
7313984Universal retention cavities for cable-mounted remote hose clamp pliers heads
A tool for moving two members relative to each other, such as narrow and wide tangs of an elastic clamp, includes first and second bodies formed substantially identically and operably coupled to each other in spaced, opposing relation, each of the bodies have a subs...
01/01/2008
7294140Device for holding trocar sleeves
A device for holding a trocar sleeve in its position of engagement in the body of a patient has clamping jaws which in the closed position define an opening and which can be placed about the outside of the trocar sleeve, and at least one hole via which the device ca...
11/13/2007
7249542Self-adjusting variable grip locking plier for gripping a workpiece
A self-adjusting variable grip locking plier for gripping a workpiece. The plier includes a body, a handle, and a wedge. The plier is designed for extremely fast set up and for easily gripping and holding the workpiece with one hand with absolutely no adjustments ev...
07/31/2007
7210219Cir-clip to shaft insertion tool
The fastener to shaft insertion tool is disclosed which consists of a shaft holding member, a fastener insertion member, and force transmitting member. The fastener holding member facilitates the holding of the fastener and the application of forces to the fastener ...
05/01/2007
7194936Slidable switching mechanism for convertible retaining ring pliers
A convertible retaining ring pliers has a pivot, first and second jaws and first and second handles rotatably secured about the pivot. A pair of transfer pins is slidably disposed for selective movement in the jaws and the handles for establishing alternative operat...
03/27/2007
7185408Mounting device for a garbage disposal
A tool for installing a garbage disposal to a sink flange extending below a sink includes a keeper and a platform. The keeper includes a head portion for engaging the sink flange above the sink and a leg portion extending along the sink axis through the sink flange....
03/06/2007
7174615Screw holder
A screw holder for securing a screw having a longitudinal shank and a central axis, a spindle adjoining the front end of the shank and having a bore therethrough flush with a groove, configured and dimensioned for receiving an elastic component to secure a screw int...
02/13/2007
7117851Installation procedure and correction jig for a combustion gas seal for an injector
A correction jig is used when installing a resin combustion gas seal in an annular installation groove of a nozzle portion of an injector. The installation groove has an increased diameter portion in a section closer to a body of the injector. When the nozzle portio...
10/10/2006
7114228Motor vehicle suspension spring compressor
A spring compressor comprising an actuator with a body and a rod that are telescopically movable relative to each other and two jaws each comprising an attachment portion (2) for attachment to the actuator and a working portion (3) for engaging a turn ...
10/03/2006
7093518Tool for tensioning, slackening and opening spring-clip elements
A tool for tensioning loosening, and opening spring-type clamping elements with two radially outward-projecting actuating arms, the tool including a hand-operable actuating part, a Bowden cable having a bore and a sheath, the Bowden cable being connected to the actu...
08/22/2006
7089640Tool for installing retaining ring
A problem where a tool is deformed when a retaining ring is fitted on a shaft is solved. Plate members (2, 2a) positioned at at least one side of a full back surface of a retaining ring (W) are arranged at a holder (1) provided at the head of a ...
08/15/2006
7080432Piston pin spiral or wire lock ring insertion tool
A tool is disclosed, for inserting a multi-turn spiral lock, received by a groove of a piston assembly. The tool includes a handle, for transmitting manual torque forces, to enter a spiral, grooved head, or a profiled fitting, a wire lock ring. The spiral, grooved h...
07/25/2006
7055413Pair of pliers for snap rings
A pair of pliers is provided for snap rings. The pair of pliers includes two handles pivotally connected with each other, a spring compressed between the handles and two jaws detachably installed on the handles. Each jaw includes a first operative portion, a first t...
06/06/2006
7047618Single stroke O-ring insertion device
An apparatus and method of applying an expandable member, such as an O-ring, to a part to from an installed part. The apparatus and method comprise a piston slidably positioned within a housing with a slidable sleeve interposed between the housing and the piston. Th...
05/23/2006
7047619Seal installation tool and method
A tool and method is provided for the installation of radial seals such as for example O-rings into radial grooves. The tool and method can be used to install an O-ring into a dovetailed groove of an items such as a valve stem. The tool includes a first part having ...
05/23/2006
7048255Staple removal tool
A staple removal tool includes a working end with an enlarged area and forked portion. The forked portion includes two prongs separated by a substantially V-shaped slot, wherein the V-shaped slot includes a rounded junction. The working end tapers in thickness along...
05/23/2006
7032479Pliers for E-shaped snap rings
A pair of pliers is disclosed for E-shaped snap rings. The pair of pliers includes two handles and two jaws. The handles are pivotally connected with each other. Each of the handles includes a first end and a second end so that the first ends of the handles are open...
04/25/2006
7007357Removal and installation device for external and internal snap rings
A removal and installation device for external and internal snap rings that can switch between shaft and hole modes by simple operation and produces better controllability, workability, serviceability and easiness in handling is provided. A rotary plate is rotated i...
03/07/2006
6993816Retaining ring installation tool
A retaining ring installation tool for use in installing retaining rings onto shafts and into bores is formed from a single piece of metal to define a cylindrical, elongated body. A hollow cavity is formed in one end of the body and the wall of the body that defines...
02/07/2006
6983677Switching mechanism for convertible retaining ring pliers
A convertible retaining ring pliers has a pivot, first and second jaws and first and second handles rotatably secured about the pivot. A pair of transfer pins is slidably disposed for selective movement in the first and second jaws and the first and second handles f...
01/10/2006
6976412Tool equipped with a turnable driving head
A tool equipped with a turnable driving head includes a left handle and a right handle to couple with a right driving section and a left driving section therebetween. The left handle and the right handle and the right and the left driving sections are coupled togeth...
12/20/2005
6964089Sink flange assembly installation method and tool
A tool for installing a locking ring in an annular groove defined by a lower annular rim portion of a sink flange of a garbage disposer sink flange assembly. The tool includes a pair of elongated members that are pivotally connected at a pivot point to form a pair o...
11/15/2005
6921263Adjustable dental instrument having a multi-detent latch
A dental instrument (10) having a tool (12) with a tip (56) capable of being rapidly adjusted and fixed in a variety of orientations relative to an instrument body (14). The instrument comprises opposing jaws (16, 22) having concav...
07/26/2005
6907802Tool for detecting the release of energy
A tool for actuating a workpiece includes a fixed member for contacting a contact surface of a workpiece and a movable member, which is supported by the fixed member for generally linear movement relative to the fixed member. The movable member is for contacting a s...
06/21/2005
6792837Universal retaining ring plier tool
A plier tool having first and second jaws independently and rotatably disposed about a pivot. A pair of handles are rotatably disposed about the same pivot. The handles are attached on opposite sides of the jaws by a bolt that passes through openings in the handles ...
09/21/2004
6789313Piston pin lock ring insertion tool and method
A piston-pin lock-ring-insertion tool has a ring-insertion tube (1) in ring-insertion relationship to a ring pusher (2). The ring-insertion tube has an inside periphery with a press-close taper (8) that is tapered inwardly from a ring-feeder end...
09/14/2004
6725516Rubber ring coupling apparatus
A rubber ring coupling apparatus for coupling rubber rings with an object includes a ring cartridge and expansion elements. A rubber ring is held in an expansion opening located in the ring cartridge. The expansion elements are disposed into the rubber ring and expa...
04/27/2004
6722011Apparatus and method for installing a c-clip
Disclosed herein is an apparatus and method for installing a c-clip outside a far end of a passage. In some embodiments, the apparatus comprises prong members each comprising a prong end, a base end, and a lip part. A base is secured to the base ends, so the prong m...
04/20/2004
6718607Equipment for fixing an elastic clamp band
A method and an implementation equipment for fixing an elastic clamp band (1) to the lugs (5) particularly adapted for re-current mounting of a flexible connection pipe (12) on a pipe system (13). An automatic dispenser (2) of clam...
04/13/2004
6711791Slide hammer tool and method of removing a keeper ring
A slide hammer tool is particularly useful for replacing worn teeth of a trenching machine. The teeth are retained in chain links of the trenching machine by respective open keeper rings. The tool has a rod with stops proximate both ends. A hammer is slidable on the...
03/30/2004
6678930Universal snap-ring tool
The retainer or snap-ring tool of this invention includes a pair of jaws with only one of the jaws attached to a single handle. The jaws are disposed to be spread apart one from the other by a jaw positioning device. The lower end of each jaw is equipped ...
01/20/2004
6640405Ring installation method and ring installation jig
A ring installation method and a ring installation jig which are capable of performing an installation operation with high efficiency in which an anti-slip-off ring made of an elastic metal material is uniformly expanded to be fitted on a pin's end and pu...
11/04/2003
6622361Railroad clip removal system having a pair of arms within a guide slot
A railroad clip removal system for efficiently removing a fastening clip from a receiver bracket of a crosstie. The railroad clip removal system includes a frame structure having a center cutout and a pair of opposing slots, an actuator, a pair of engagin...
09/23/2003
6615474Sink flange assembly installation method and tool
A tool for installing a locking ring in an annular groove defined by a lower annular rim portion of a sink flange (e.g., a component of a garbage disposer sink flange assembly) includes a pair of first and second elongated members that are pivotally conne...
09/09/2003
6609282Device for installing bolt retainers
A device for installing a bolt retainer onto a bolt includes a support bar and a handle attached to the support bar. A retainer dispensing assembly mounted to the support bar includes a rail capable of holding a number of bolt retainers thereon. A retaine...
08/26/2003
6574847Valve keeper installation device
A valve keeper installation device for facilitating installation of valve keepers. The valve keeper installation device includes a pliers member for engaging and compressing valve locks including: a jaw portion for providing a compressive force; a handle ...
06/10/2003
6530135Camstopper
The present invention comprises a camshaft holding tool and corresponding method for operating the camshaft holding tool in double overhead camshaft engines. In one embodiment, the holding tool includes a body portion including first and second curved por...
03/11/2003
6507985Snap ring installation tool and method
Tooling and process for installing a split type, circular snap ring into a slotted or grooved wrist pin journal of a piston utilizing an installation sleeve member with an internal bore therethrough which is positioned against the piston so that its bore ...
01/21/2003
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