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US4210049A Expired / Lapsed US ⏱️ 0.0 years remaining

Tubular frame supported, cantilevered chain saw

Assignee: Individual
•
Filing: 1978-12-21
•
Granted: 1980-07-01
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Expires: 1998-12-21
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Abstract

Abstract A foldable, hollow tubular frame, having a pair of elongated,spaced-apart legs, supports an elongated shaft rotatable on a horizontal axis at about shoulder level, with a conventional motor driven chain saw removably affixed to the shaft outside one end of the frame in cantilever position. An elongated trough extends horizontally of the frame at about waist level and the lower portion of the frame is anchored, or weighted, to avoid tipping. A control lever handle extends from the shaft alongside the saw, within the frame, so that the operator is on the chain side but out of the chain plane.

Inventors

  • 👤 R. Raymond Gauthier

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 16:57
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/0041; B27B17/0058; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7101; Y10T83/7114; Y10T83/869; Y10T83/8763

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 254 words
A chain saw support comprising: a generally U shaped frame having a pair of elongated legs, each with a sleeve at one end rotatably supporting an elongated shaft therewithin at about shoulder level above ground level, and each with an opposite lower end having means for anchoring the same to the ground, log trough means supported at about waist height above ground level on said U shaped frame and extending in parallelism with said shaft to slidably support a log therein, with the end to be cut extending beyond said trough and outside one said leg; a power chain saw, cantilever-supported on one end of said shaft outside said one leg, and having the cutting chain thereof positioned to move in a vertical plane passing through the desired cut line of the log; a lever arm handle detachably affixed to said shaft for movement therewith and extending outwardly and upwardly from said shaft in the same direction as said cutting chain of said saw but at a location inwardly of said one leg to a free terminal end; and throttle control means at said free end of said arm connected to the throttle of said chain saw; whereby an operator may stand in front of said lever arm handle out of the path of said cutting chain, and lower said handle, while actuating said throttle control means, to oscillate said chain saw downwardly from the horizontal on the axis of said shaft, to cut off successive ends of a log in said trough means.
Claim 2
Dependent Claim 254 words
A chain saw support comprising: a generally U shaped frame having a pair of elongated legs, each with a sleeve at one end rotatably supporting an elongated shaft therewithin at about shoulder level above ground level, and each with an opposite lower end having means for anchoring the same to the ground, log trough means supported at about waist height above ground level on said U shaped frame and extending in parallelism with said shaft to slidably support a log therein, with the end to be cut extending beyond said trough and outside one said leg; a power chain saw, cantilever-supported on one end of said shaft outside said one leg, and having the cutting chain thereof positioned to move in a vertical plane passing through the desired cut line of the log; a lever arm handle detachably affixed to said shaft for movement therewith and extending outwardly and upwardly from said shaft in the same direction as said cutting chain of said saw but at a location inwardly of said one leg to a free terminal end; and throttle control means at said free end of said arm connected to the throttle of said chain saw; whereby an operator may stand in front of said lever arm handle out of the path of said cutting chain, and lower said handle, while actuating said throttle control means, to oscillate said chain saw downwardly from the horizontal on the axis of said shaft, to cut off successive ends of a log in said trough means.
Claim 3
Dependent Claim 81 words
A chain saw support as specified in clain 1 wherein: said shaft includes a second lever arm integral therewith and extending outwardly therefrom, in a direction opposite to the direction of said first mentioned lever arm, at a location inwardly of said one leg to a free terminal end and, coil spring means connecting the free terminal end of said second lever arm with a portion of said log through means for biasing said chain saw into upward, horizontal nonoperating position.
Claim 4
Dependent Claim 81 words
A chain saw support as specified in clain 1 wherein: said shaft includes a second lever arm integral therewith and extending outwardly therefrom, in a direction opposite to the direction of said first mentioned lever arm, at a location inwardly of said one leg to a free terminal end and, coil spring means connecting the free terminal end of said second lever arm with a portion of said log through means for biasing said chain saw into upward, horizontal nonoperating position.
Claim 5
Dependent Claim 45 words
A chain saw support as specified in claim 1 wherein: said chain saw support includes a pair of hollow cylindrical pipes embedded below ground level and each leg of said frame is received in one of said pipes to retain said frame in upstanding position.
Claim 6
Dependent Claim 83 words
A chain saw support as specified in claim 1 wherein: said means anchoring said U shaped frame to the ground includes a second pair of legs, shorter than said first pair of legs, and having upper ends each pivoted to one of said elongated legs at about waist level to form a brace therefor, and a wood platform resting on the ground in the area surrounding said chain saw support, said platform having the lower ends of all of said legs affixed thereto.
Claim 7
Dependent Claim 55 words
A chain saw support as specified in claim 1 wherein: said throttle control means includes a throttle lever pivoted to the outer end of said lever arm and mechanical linkage connecting the same to the throttle built into said chain saw, whereby depression of said throttle lever produces a corresponding actuation of said built-in throttle.
Claim 8
Dependent Claim 57 words
A chain saw support as specified in claim 1 plus a container of oil mounted on the sleeve of the elongated leg nearest to said chain saw, so as not to pivot with said shaft; and a flexible tube connecting said container to the oil tank of said chain saw for automatically lubricating the same during use.
Claim 9
Dependent Claim 68 words
A chain saw support as specified in claim 1 wherein: said cantilever support of said chain saw on said shaft outside said one leg includes an elongated tube affixed to said chain saw and sleeved over said shaft and a removable pin in registering holes in said tube and shaft whereby removal of said pin enables removal of said saw for repair, storage or shipment of said support.
Claim 10
Dependent Claim 191 words
A foldable, collapsible, chain saw support comprising: frame means having an upper portion supporting an elongated shaft for rotation on a horizontal axis at about shoulder level, an intermediate portion supporting an elongated trough, parallel to said shaft, at about waist level and a lower portion adapted to support said frame means in upstanding position relative to ground level a power chain saw affixed to said shaft to rotate therewith on said horizontal axis, alongside said frame means, from a horizontal position above the line of cut on a log in said trough downward in a vertical plane to a position below said line of cut a lever arm handle having a base end affixed to said shaft at a spaced distance from said saw, within said frame means, and extending therefrom for a substantial distance away from said shaft to permit an operator to actuate said saw without being in the path of the cutting chain of said saw; and throttle control means at the free terminal end of said handle, operably connected to the throttle of said chain saw, for finger tip control of the speed of said saw.
Claim 11
Dependent Claim 191 words
A foldable, collapsible, chain saw support comprising: frame means having an upper portion supporting an elongated shaft for rotation on a horizontal axis at about shoulder level, an intermediate portion supporting an elongated trough, parallel to said shaft, at about waist level and a lower portion adapted to support said frame means in upstanding position relative to ground level a power chain saw affixed to said shaft to rotate therewith on said horizontal axis, alongside said frame means, from a horizontal position above the line of cut on a log in said trough downward in a vertical plane to a position below said line of cut a lever arm handle having a base end affixed to said shaft at a spaced distance from said saw, within said frame means, and extending therefrom for a substantial distance away from said shaft to permit an operator to actuate said saw without being in the path of the cutting chain of said saw; and throttle control means at the free terminal end of said handle, operably connected to the throttle of said chain saw, for finger tip control of the speed of said saw.
Claim 12
Dependent Claim 89 words
A combination as specified in claim 8 wherein: said frame means includes a pair of elongated, parallel legs supporting said shaft and a pair of shorter parallel legs each pivoted to one of said legs at about said waist level, to constitute the lower portion of said frame means supporting the same in a foldable "saw horse" manner said trough comprising a pair of angularly disposed walls devining a V in cross section, one wall being foldable against the other flatwise on said frame means when not in use.
Claim 13
Dependent Claim 58 words
A combination as specified in claim 8 wherein: said throttle control means includes a finger tip lever at the free end of said handle, mechanical linkage connecting said lever to a corresponding lever at the base of said handle and a horizontal extending crank element actuated by said corresponding lever to operate the throttle of said chain saw.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-07-01 1983-12-31 1984-07-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-07-01 1987-12-31 1988-07-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-07-01 1991-12-31 1992-07-01 $7700.00 Window Closed / Lapsed

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