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...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...

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Class 29/220 - Single jaw or valve engagement


Subclass of Class 29 - Metal working
Definition: Apparatus in which the compressor has a single engagement
No. of patents: 13
Last issue date: 04/23/2002


NumberTitleIssue Date
6374473Valve spring compressor
A valve spring compressor of uncomplicated construction. The valve spring compressor includes a lever arm and an attaching member pivotally and releasably secured to the front end of the lever arm. The attaching member has a threaded portion and a first c...
04/23/2002
6321432Tool for automotive engine valve removal and replacement
A tool for removal of an automotive engine valve from a cylinder head, the valve including a valve stem, valve spring, and keepers locking the spring in engagement with the valve stem. The tool compresses the valve spring to remove the keepers from the va...
11/27/2001
6199253Valve spring removal and installation tool
The present invention is a tool for removing and installing valve springs on an internal combustion engine, said tool having a body with a pair of prongs at one end and a handle means for supplying a downward force at the other end. At the extreme end of ...
03/13/2001
6047454Clamp for disengaging an inlet or exhaust valve from an engine
A clamp includes an arcuated frame with a stub connected to the first end thereof and a bracket connected to the second end thereof. The second end of the frame has a passage into which a rod is movably received which has one end thereof pivotally connect...
04/11/2000
5661885Valve-spring compressing tool
A body having a journal box slidably receives a pivot shaft therein. Too, the body has a bifurcation, and the ends of the limbs thereof have rollers mounted therein. A stub, rising from the body, receives a handle for turning the body on the pivot shaft, ...
09/02/1997
5499434Valve spring compressor tool
A tool for compressing valve springs of overhead camshaft internal combustion engines in which the tool is provided with a J-shaped hook member for engaging the camshaft and utilizes the latter as a fulcrum and in which the hook member is formed with an e...
03/19/1996
5365647Engine valve service apparatus
In association with an overhead camshaft type internal combustion engine, apparatus to simultaneously pressurize all the combustion chambers and to maintain the valves in their closed positions while removing or installing valve springs. The apparatus has...
11/22/1994
4567634Tool for compressing valve springs
A tool for compressing valve springs including: a lever which has a spring engaging portion, a fulcrum portion spaced from the spring engaging portion and an axis which extends generally from the fulcrum portion to the spring engaging portion. A torque tr...
02/04/1986
4513486Valve retainer for automotive valve repair
A device or tool for facilitating removal of overhead automotive valves for inspection and repair of the stem and sleeves comprising a knob operated toggle mechanism which is inserted in the opening left after removal of a spark plug. The toggle mechanism...
04/30/1985
4451957Apparatus for joining the ends of a belt to make it endless
A slide apparatus for joining ends of a belt of the type having a plurality of transverse interlocked spiral elements. The slide apparatus includes two tapered overlapping channels for the reception of the overlapping belt ends so that upon movement of th...
06/05/1984
4446608Valve spring compressor for internal combustion engine
Valve spring compressor tool for internal combustion engines having an overhead camshaft. The tool has a fulcrum bracket removably attached to the engine providing means to pivot a lever, and a lever assembly having a depressor member used to depress the ...
05/08/1984
4262403Valve spring compressor tool
A valve spring compressor tool has a tubular member that screws at one end on to the rocker arm stud and has a body portion linked at the opposite end that slides down the tubular member. By pulling down on the handle of a bell crank type linkage, a posit...
04/21/1981
4176435Apparatus for removing rocker arms
Apparatus for removing a rocker arm of a valve mechanism in an automobile engine includes an elongated open-ended tubular sleeve having a U-shaped working face at one end and a slot extending inwardly from the working face of the sleeve. The slot allows t...
12/04/1979
 
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