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Class 74/575 - Pawls and ratchets


Subclass of Class 74 - Machine element or mechanism
Definition: Elements limited to the structural details of a pawl or
No. of patents: 135
Last issue date: 02/28/2012


1        
NumberTitleIssue Date
8122786Parking lock arrangement
Locking arrangement for locking a first element which is movably mounted in a first direction, by means of a second element which is movably mounted in a second direction transversely with respect to the first direction. First element has a toothed contour with at l...
02/28/2012
7506562Ratchet assembly
A ratchet assembly includes a threaded rod and a support collar that defines a bore. A portion of the threaded rod is disposed in the axial bore of the support collar. A ratchet pawl is pivotable carried by the support collar between locked and unlocked positions. T...
03/24/2009
7442137Eccentric mounting and adjustment system for belt driven devices
An eccentric adjustment and mounting system is useful for belt engaging engine components such as alternators or water pumps. The system includes a housing fixed to the engine, a socket rotatable in pawl-and-ratchet fashion within the housing, and a socket aperture ...
10/28/2008
7404344Ratchet device for an electrical component which may be adjusted by rotation
A ratchet device for an electrical component that can be adjusted by rotation, such as a rotary switch or a rotary potentiometer, is provided. The ratchet device includes a leaf spring, resting against a ratchet contour by means of spring pressure, whereby the ratch...
07/29/2008
7357051Ratchet-type adjustment device
A ratchet-type adjustment device for the ratcheting displacement of an adjustment body with respect to a fixed base element having an oblong actuating element, where the actuating element can be displaced along linear toothed portions, which are fitted to the adjust...
04/15/2008
7353730Foot depressing parking brake apparatus
A foot depressing parking brake apparatus including a brake pedal main body 3 pivotably supported by a support shaft 2, a ratchet plate 4 having ratchet teeth 4b and attached to the brake pedal main body 3, a ratchet pole
04/08/2008
7315006Fuse block with improved unidirectional operator
A ball ratchet mechanism suitable for use with an electrical disconnect employs a track and drive surface that engage the ball so as to capture it without significant shear force being applied to ridges of the track. In this way, the shape of the track can be optimi...
01/01/2008
7267091Dynamic effortless pull starting
An energy storing recoil starter includes a buffering component to reduce a pull effort when starting an engine. The energy storing recoil starter includes a starter housing coupled to an engine shaft of the engine and a starter pulley. A clutch assembly is coupled ...
09/11/2007
7234372Reversible ratcheting tool with a smaller head and improved driving torque
A ratcheting tool includes a handle and a head with a compartment. A drive member includes a first end extended beyond the compartment, a second end extended beyond the compartment, and a gear wheel formed between the first end and the second end. The gear wheel is ...
06/26/2007
7222374Head gear fitting system
According to one embodiment of the invention, a fitting system for a helmet is provided. The fitting system includes a belt having supported racks coupled to a belt adjustment device. The belt adjustment device is operable to allow a user to tighten the belt, and re...
05/29/2007
7159852Manual marine winch internal gearing
A manual swivel winch of the present invention includes internal drum gearing. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, an internal drum gear coaxially mounted with the rotating drum, and a pinion drive gear enga...
01/09/2007
7156374Chain block
A chain block comprising a load sheave winding up a load chain, a hand wheel arranged on one side of the load sheave and rotatable in one of a normal direction and a reverse direction in response to the manual operation of a hand chain, a pinion shaft inserted throu...
01/02/2007
7128307Manual marine winch with compound handle
A manual swivel winch includes safe loading mechanism. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, a drum gear coaxially mounted with the rotating drum, a pinion drive gear engaging and rotating the drum gear, and a...
10/31/2006
7000496Cable retraction mechanism for trigger shifters
A bicycle shifter having a housing mountable to a handlebar, a takeup mechanism for pulling a shift cable and a release mechanism for releasing the shift cable. The takeup mechanism includes a takeup tooth segment, a takeup pawl and an actuation element. The release...
02/21/2006
6988684Handle assembly for fishing reel
A handle assembly has a handle arm mounted to a fore-end of a handle shaft, a handle grip rotatively mounted to one end of the handle arm, and a rotation support portion made of a metal for rotatively mounting the handle grip to handle arm. The handle grip is a subs...
01/24/2006
6973852Parking brake comprising mechanism for adjusting brake cable tension
The present invention relates to a parking brake lever of a vehicle. The parking brake comprises a supporting member adapted to be fixed to a frame of the vehicle and provided with a ratchet portion; a parking brake lever mounted on the supporting member and oscilla...
12/13/2005
6962093Noise reduction structure for power take-off unit gear assembly
A noise reduction structure is provided for use with a meshing gear assembly, such as in a power take-off unit for selectively providing power to one or more rotatably driven accessories. The meshing gear assembly includes meshing input and output gears that are sup...
11/08/2005
6958038Multipositional ratchet device for surgical retractor
The invention disclosed herein relates to a multipositional ratchet device for use in conjunction with a surgical retractor assembly. The ratchet device of the invention permits both independent and simultaneous adjustment of the longitudinal axial positioning of a ...
10/25/2005
6901901Recoil starter
A recoil starter is disclosed which enables a ratchet member to be manufactured at a reduced cost and which is capable of obtaining a sufficient strength and reducing a size and weight thereof without increasing a thickness of a rope reel and the like. The ratchet m...
06/07/2005
6840134Hand brake assembly for a motor vehicle
A hand brake arrangement for a motor vehicle, particularly a passenger car, has a brake lever which is swivellably disposed on a vehicle-fixed stationary base and, with a locking device, can be locked in different swivelling positions. The brake lever has an unlocki...
01/11/2005
6837127Parking brake
A parking brake for a vehicle includes a lever holder including a housing that has a first flat side and a second flat side and a brake actuation lever pivotably arranged on the lever holder. The brake actuation lever is articulated to the first flat side and to the...
01/04/2005
6817264Parking brake operating device for vehicle
A parking brake operating device for vehicle, wherein a vehicle is held by a specified braking force by manually rotating a brake lever (2), a held state is released by rotatingly operating the brake lever (2) upward by a specified amount from the held...
11/16/2004
6789855Automatic set and release hand brake
An automatic application hand brake apparatus is provided for automatically applying at least one brake member secured to a railway vehicle with the hand brake assembly. The apparatus comprises an operating member having at least one ratchet attached to a drive shaf...
09/14/2004
6729205Multi-position ratchet mechanism
A multi-position ratchet mechanism has a retractor holder which receives a retractor stem connected to a retractor. A pawl selectively engages the retractor stem to allow for the retractor stem to be positioned relative to the retractor holder. The retractor holder ...
05/04/2004
6729203Bicycle gear shifter having separate shift control members for cable pull and release
A shifting device including first and second shift control members, a takeup element, a holding member, and a release member. The takeup element configured for winding and unwinding a tensioned control cable. The first control member is rotatable about a handlebar a...
05/04/2004
6722734Locking assembly for a rocking chair
The present invention relates to a locking assembly for a rocking chair. The locking assembly includes a pair of jaws mounted to the body-supporting portion of the chair and a set of pins mounted to the chair base portion of the chair. The jaws are operable to engag...
04/20/2004
6663183Controlling device for a body support pivotally mounted on top of a stool
A controlling device for a support pivotally mounted on top of a stool includes a housing adapted to securely engage with a bottom face of the support, two pawls pivotally received in the housing, a wedge and control knob connected to the wedge and a ratc...
12/16/2003
6644143Grip gear-shifter for actuating derailleur of bicycle
A grip gear-shifter for being used in actuating a derailleur of a bicycle is provided. The grip gear-shifter includes a return spring, a resilient steel plate having a polyhedron-formed controlling pawl, a guiding ring having a guiding notch for guiding a...
11/11/2003
6402242Locking assembly for a rocking chair
The present invention relates to a locking assembly for a rocking chair. The locking assembly includes a pair of jaws mounted to the body-supporting portion of the chair and a set of pins mounted to the chair base portion of the chair. The jaws are operab...
06/11/2002
6289766Foot-operated parking brake
A foot-operated parkin brake apparatus for a vehicle has a base plate, a pedal lever, a sector gear, and a locking pawl. The base plate has a pivot and is fixed with respect to the body of the vehicle. The pedal lever is rotatably supported by the base pl...
09/18/2001
6282980Self-adjusting parking brake actuator
A self-adjusting parking brake actuator for a vehicle is provided having an eccentrically-mounted self-adjust cam assembly. The cam assembly is mounted eccentrically to the lever axis to provide a variable mechanical advantage during actuator stroke. The ...
09/04/2001
6148979Compliant overrunning clutch with centrifugal throw-out
A compliant overrunning ratchet and pawl clutch mechanism with centrifugal throwout comprising a ratchet wheel and a one-piece pawl wheel. The ratchet wheel has plurality of angled teeth disposed about its perimeter. The pawl wheel comprises a one-piece c...
11/21/2000
6122990Hand brake for motor vehicles
A hand brake for motor vehicles, and including a trestle provided with a toothing, a brake lever pivotally supported on the trestle, a locking pawl for retaining the brake lever on the trestle in an arbitrary selected pull position, at least one brake cab...
09/26/2000
6053908Ratchet assembly for surgical instrument
A ratchet assembly for a surgical instrument includes a bar having teeth; a pawl having a member for engaging the teeth, the bar being movable relative to the pawl in two directions along an axis, and the pawl being pivotable between a first ratchet posit...
04/25/2000
5969588Ratchet and ball magnetic index device
A ratchet and ball magnetic index device having a drive motor plate with a top surface and a bottom surface. The drive motor plate contains at least one ball receiving recess on the periphery of the bottom surface of the drive motor plate. A permanent mag...
10/19/1999
5937986Friction clutch, particularly for motor vehicle, comprising a wear adjusting device
The friction clutch, for a motor vehicle, includes a friction disc, a pressure plate (201), a cover plate (202) fixed on the reaction plate, and an axially acting spring (203) working between the cover plate (202) and the pressure plate (201), the pressur...
08/17/1999
5873286Flex pawl
A pawl for a ratchet wrench to be engaged with a ratchet gear. The pawl has a slot formed on each side of the pawl. The slot extends between the top and the bottom of the pawl near the teeth on the front of the pawl. The pawl flexes to compress the slot w...
02/23/1999
5829313Bicycle derailleur shifting mechanism having indexing configured for use with variety of chain sprocket sets
An apparatus for operating a bicycle transmission shifting device having an operating component for mounting to a bicycle in close proximity to a brake operating unit for alternately pulling and releasing a transmission element, a first lever is mounted t...
11/03/1998
5787761Cable slack adjuster
A slack adjuster (1) for a cable operated system, such as a brake assembly operable by a brake lever (2), includes two drive parts (9) and (10) which are engageable to form a drive connection between the brake lever (2) and the cable (29) to enable the le...
08/04/1998
5732806Compensator to prevent backlash in a surgical instrument
The present invention provides a surgical instrument which prevents backlash due to reduction of applied force on the handle or trigger of the surgical instrument. The instrument includes a clutch system that is adapted to maintain the position of the por...
03/31/1998
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