U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 29/228 - Flat spiral spring (e.g., watch or clock type)


Subclass of Class 29 - Metal working
Definition: Apparatus for applying or removing a flat spiral spring,
No. of patents: 10
Last issue date: 04/18/2006


NumberTitleIssue Date
7028594Split ring and pellet method stitchless fastener coil separation tool
A guidance channel radiating from each side of clip holding chamber centered on a flat plate. A prying tool slideably and rotatably held within each guidance channel by a spring strip. A split ring held snugly within the holding chamber. The tool tips are forced bet...
04/18/2006
6240611Starter spring rewinder
A tool for coiling spring and holding the coiled spring for replacing strip type spring used in equipment such as chain saws, weed cutting implements, etc. The spring is coiled within a cap that has an ejector plate provided therein as well as a spring ho...
06/05/2001
5694689Method of mainspring removal tool for mainspring removal
A tool provides a means for easily and safely removing a timepiece mainspring from its barrel for cleaning and lubricating. A barrel holder is provided having a rim, and an essentially planar surface which includes openings therethrough. A mainspring barr...
12/09/1997
5421073Tool for removing spiral coil springs
A tool for use in an automotive window regulator assembly is provided enabling a spring of the regulator assembly to be readily installed or removed by a mechanic or a technician....
06/06/1995
5113561Starter spring rewinder
The rewinder has a tubular housing defining an interior chamber which is open at the top and bottom ends and has an inboard annular shoulder and an aperture through the housing wall. A winder with a handle and an annular shoulder is received in the chambe...
05/19/1992
5072499Starter spring rewinder
An improved spring rewinder for compressively rewinding a ribbon-type spring of concentric coils is disclosed....
12/17/1991
4807347Method and tool for rewinding a recoil starter spring
A tool for rewinding the recoil starter spring within a recoil starter mechanism for a small engine which allows the repair person to rewind the spring with a minimum of trouble and without the danger of the spring flying out of the central spring receivi...
02/28/1989
4183268Device for replacing springs
A device useful in replacing springs in equipment such as chain saws, lawnmowers and the like having pull-rope starter assemblies is provided which device comprises a substantially cylindrical or similar member about which the old or new spring is wound a...
01/15/1980
4036084Apparatus for removing and replacing spiral springs in clock barrels
A support frame carries a rotary clock spring winding shaft having a reversible locking means. A set of variably sized spring retaining sleeves are provided and are selectively placed on the winding shaft according to the size of the clock spring barrel. ...
07/19/1977
3993727Fluid-release mold and the method of manufacturing the same
A fluid-releasable mold for forming shaped ware including a porous mold body comprising at least 70% alumina, up to 15% ball clay and up to 15% talc is disclosed. A mold face is formed on one surface of the mold body and fluid-permeable conduit is provide...
11/23/1976
 
Sign InRegister
Username  
Password   
forgot password?