The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 17, 1976

Filed:

Feb. 14, 1973
Applicant:
Inventors:

Gunter Dietzsch, Schmiden, DT;

Gerd Frers, Neustadt, DT;

Dieter Wieland, Neckarrems, DT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 483 ; 1921 / ;
Abstract

A motor chain saw in which serially arranged clutches are interposed between the motor output shaft and the chain of the saw. The clutches include a centrifugal clutch and a mechanically controlled clutch. The mechanically controlled clutch has at least one drive element having an engaged position and a disengaged position and is acted on by centrifugal force urging it toward the position which it occupies. A spring urges the device element toward engaged position with a force less than the centrifugal force which acts on the drive element above a certain speed. The mechanically controlled clutch includes at least one control operable to move the drive element in at least disengaging direction during rotation of the clutch.


Find Patent Forward Citations

Dietzsch, Gunter. (1976). Motor chain saw (U.S. Patent No. 3938633). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3938633

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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