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:
Jun. 20, 1989

Filed:

Jul. 26, 1988
Applicant:
Inventor:

Andrew L Jedick, Sheffield, OH (US);

Assignee:

Diamond Products, Inc., Elyria, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C / ;
U.S. Cl.
CPC ...
299 39 ; 125 14 ;
Abstract

A portable rotary power saw comprising a housing having mounted at its aft end a pair of rear wheels and a handlebar assembly. Mounted at the fore end of the housing a rotary cutting blade and a vertically adjustable axle having a pair of front wheels. Located between the rear and front wheels within the housing is a stationary axle mounted upon a pair of bearings which permit the axle to pivot. The saw includes a height adjustment mechanism comprising a segment, a latch, and a cable and lever assembly for operating the latch. One leg of the segment is supported by the stationary axle and connected to the adjustable axle by a pair of arms. The other leg of the segment includes a plurality of notches spaced along its length and it extends through the top of the housing. The latch is located on top of the housing immediately adjacent the notched leg and is capable of pivoting in and out of engagement with the notches. The segment is biased such that when a user squeezes the lver and exerts a vertically downward force upon the handlebar assembly, the adjustable axle extends vertically downward relative to the housing. Alternatively, when the user discontinues squeezing the lever, the latch engages one of the notches of the segment thereby locking the segment and the adjustable axle into a predetermined position.


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