US 4,603,715 AGranted

Attachment for power tool

OwnerBruce Muehlhauserinventor

Life of this patent

Estimating the term…

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Abstract

A device is provided operable by rotary power means such as a common gas powered chain saw with bar and chain removed therefrom or a rotary electric saw with blade removed, which enables easy matching of logs for construction of log houses or other log buildings, the device having means to engage the drive mechanism of the rotary power means, the drive sprocket of a chain saw, the device including an elongated rotatable cutter preferably with multiple blades and having an elongated guide which shrouds all but one side of the cutting blade and which guide provides a means for sliding the cutter along the pre-cut side of one log and enabling the cutting to match that of another log which is placed and spaced in a juxtaposition with the cut side of said log; the movements of the guide along any imperfections in the cut log will result in a matching mirror image cut of the juxtaposed log.

Claims2

Dependent claims

A method of cutting surface of a log into a mirror image of the pre-cut surface of another log comprising,

(a) supporting said log with the pre-cut surface in a horizontal position with the pre-cut surface facing upward,
(b) placing the log to be cut in a position spaced a small distance above and parallel to said pre-cut log,
(c) providing a power driven rotating cutting element including an elongated rotatable cutting element comprising a plurality of elongated cutting elements spaced around the circumference thereof, said cutting element being provided with a coupling device adapted to engage a rotatable power drive means, shield means encircling the circumference of said cutting element, an opening being provided along one side of said shield means to expose one side of said cutting element, said shield means being attached to the stationary body of said drive means and thereby rendered non-rotatable, and having a smooth outer working surface adapted to slide along said pre-cut log, and
(d) sliding the shield along said pre-cut surface from one end to the other, thus causing said rotating cutting element to cut the lower surface of said upper log into a mirror image of said pre-cut log.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 06/672,662Filed 19 Nov 1984
Granted: 5 Aug 1986
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B27B 17/0016
Chain saws; Equipment therefor: devices to adapt the chain saw for other purposes, e.g. drilling
B23Q 35/104
Of one line: with coaxial tool and feeler
B27C 1/007
Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor: for cutting through a work-piece with a tool having a rotational…
B27C 1/10
Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor: hand planes equipped with power-driven cutter blocks