Convertible Patents (Class 30/122)
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Patent number: 4269241Abstract: A motorized vehicle carries a telescoping boom, pivotally mounted thereon by its proximal end portion for rotation about a vertical axis and for pivoting about a horizontal axis from a horizontal position to a vertical position. The distal end portion carries a limb engaging and cutting assembly having opposed outwardly diverging guide bars which converge toward a hydraulically driven rotary saw which is movable, along the longitudinal axis of the boom, outwardly to cut the limb as it is held in the throat between the guide bars. A pair of hydraulically operated pivoted grappling hooks confine a limb in the throat for severing action by the saw. The assembly is rotatable about the longitudinal axis by a hydraulic motor. Remote controls in the cab of the vehicle permit selective actuation of the components.Type: GrantFiled: January 15, 1979Date of Patent: May 26, 1981Assignee: Products for Energy, Inc.Inventor: Lewis Hickman
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Patent number: 4242794Abstract: A universal blower unit is provided which may be directly attached to any of the most widely distributed flexible line type grass or weed trimming tools, known as "Line-Trimmers" and sold under various designations including under the trademark "WEED EATER". The blower unit is secured to the motor housing following removal of the unit which normally holds the line employed in the line trimming operation. In securing the blower unit in place, a series of spacing studs are employed to orient and prevent lateral movement of the blower unit, and spring clamps extend up over the housing to hold the blower unit onto the motor housing and to hold the impeller in driving engagement with the output drive shaft from the motor. A small supplemental impeller is located adjacent the motor for cooling purposes. The blower unit is spaced downwardly from the motor housing and air is drawn in through the space between the blower and the motor housings.Type: GrantFiled: February 27, 1979Date of Patent: January 6, 1981Inventor: Clayton R. Peterson
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Patent number: 4227280Abstract: An attachment for converting a conventional filament trimmer into a vacuum or blower for removal of grass clippings. The attachment includes a fan housing removably mounted to the trimmer in either a vacuum or blower mode of operation and a fan removably mounted to the rotatably driven shaft of the trimmer. The fan housing has an air inlet scoop and air discharge chute.Type: GrantFiled: December 18, 1978Date of Patent: October 14, 1980Assignee: The Toro CompanyInventor: Robert C. Comer
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Patent number: 4198749Abstract: Mechanical or hydraulic press stampings are widely used for a manufactured product as thin material may be accurately blanked thereon so that only a minor amount of expensive machining is required. A compound pivot plier-type tool is provided wherein a pair of handles is pivotally mounted on and between a pair of plates which form a recess for the reception of a selected pair of jaws which are mounted therein by removable means so that a kit can be furnished with a pair of handles and mounting plates and several of the same or different types of pairs of jaws which may be easily substituted, one for the other in the recess between the plates for operation by the handles. The parts are relatively thin so that they may be largely formed by mechanical or hydraulic press stamping operations with resulting low labor costs.Type: GrantFiled: April 5, 1978Date of Patent: April 22, 1980Assignee: Utica Tool Company, Inc.Inventor: Fred W. Nordin
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Patent number: 4188719Abstract: A lawm trimmer chain saw conversion attachment has a mounting blade which mounts to a chain saw power head in place of the chain bar. The blade supports a housing formed of complementary die-cast halves which contains bevel gears between an input shaft that is chain driven at reduced speed from the saw drive sprocket and an output shaft that couples to the flexible drive shaft of a lawn trimmer frame tube. The frame tube is clamped at its upper end between half-sleeves on the housing halves, and carries a rotary cutter head at its lower end. A D-handle on the frame tube cooperates with the saw handle for convenient manipulation and control. The frame tube is rotatably adjustable and the D-handle is both axially and rotatably adjustable to adapt the assembly to the operator's convenience and to the desired operating angle of the cutter head, e.g., for horizontal lawn trimming, angular edging, sweeping, etc.Type: GrantFiled: January 23, 1978Date of Patent: February 19, 1980Assignee: Hoffco, Inc.Inventor: Stephen J. Hoff
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Patent number: 4188935Abstract: A handle assembly for a portable powered saw of the chain saw type which has an inverted, generally U-shaped handle with its upper central portion extending over the saw and the depending legs extending downwardly along opposite sides of the saw with a roller rotatably mounted between the depending ends of the legs under the saw so that the saw can be rested on the roller and rolled along to make long cuts with the saw, yet the handle assembly can be used to completely support the saw manually in its usual manner.Type: GrantFiled: May 31, 1978Date of Patent: February 19, 1980Inventor: William W. Tubesing
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Patent number: 4187577Abstract: The device includes a blower impeller, a blower housing conformed to fit snugly over the bottom of a standard line trimmer, and stretch traps for maintaining the housing in position on the line trimmer. The device enables one to convert a line trimmer to a blower arrangement by the removal of the spool and head of the line trimmer and the attachment of the impeller, housing and straps in their place.Type: GrantFiled: August 23, 1978Date of Patent: February 12, 1980Inventors: Lee A. Hansen, William A. Conrad
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Patent number: 4179805Abstract: A portable power operated tool for cutting brush, mowing grass and the like which comprises a cutting implement mounted at one end of an elongated tubular housing and driven by a lightweight engine connected to the other end of the tubular housing, a fixing element for receiving and fixing a front part of an operator's right arm, the fixing element being located in position near the engine and along with one side of the elongated tubular housing, a first handle located in front of the fixing element, and a second handle located in front of the first handle and connected to the tubular housing.Type: GrantFiled: May 5, 1978Date of Patent: December 25, 1979Assignee: Yamada Machinery Industrial Co., Ltd.Inventor: Sakuji Yamada
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Patent number: 4174646Abstract: A universal tool includes a body with an opening adapted to interchangeably receive cassette-type work elements. Connected to the body is a handle containing clamping means for securing the work piece within the surfaces of the working elements of the cassette and a screw unit which preliminarily orients the working surfaces of the cassette elements in relation to the diameter or size of the work piece. The various cassettes can contain a screw driver, reamers, wrench, pipe flare, thread cutters and other functional working surfaces or jaws.Type: GrantFiled: May 8, 1978Date of Patent: November 20, 1979Inventor: Simon Kotler
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Patent number: 4160319Abstract: A chain saw conversion unit for a portable power-driven circular saw is provided wherein the saw blade is replaced by a sprocket and the base plate of the saw is engaged between two adjustable attachment plate members having channel ends engaging the ends of the base plate of the saw, one of the attaching plates having a side flange below the sprocket carrying an adjustable blade bracket on which a cutter bar is attached at an angle to the plate and a saw chain is mounted around the cutter bar and sprocket. A friction clutch sprocket is provided to permit slippage in event of overload.Type: GrantFiled: April 25, 1978Date of Patent: July 10, 1979Inventor: Patsy Caruso
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Patent number: 4142292Abstract: An adapter for use attached to a chain saw for trimming hedges and cutting brush which includes a mounting member adapted to be fixedly secured to a chain saw guide or blade by mounting in the normally available bolt holes at the forward and rearward sections of the guide, the adapter further including a plurality of dividers forming a plurality of dividing channels therebetween in which the individual sticks or hedge members are gathered and compressed for cutting, the dividing channels being formed by dividing surfaces on the adjacent sides of said dividers to facilitate grouping of the hedges, the dividers further including a gathering surface positioned adjacent a stopping surface which is formed by the mounting member such that the gathering surface and the stopping surface are at an acute angle with respect to one another of preferably less than 90.degree.Type: GrantFiled: January 16, 1978Date of Patent: March 6, 1979Assignee: Ray R. Ulrich, Sr.Inventor: Ray R. Ulrich
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Patent number: 4140209Abstract: A clutch arrangement for a motor driven chain saw having a first clutch element driven by the motor shaft and a second clutch element normally engaged with the first clutch element but disengageable therefrom and a centrifugal clutch between the second clutch element and the drive sprocket for the saw chain. The second clutch element includes a spring disc and is axially yieldable between clutch engaged and clutch disengaged positions. A lever is provided moveable for disengaging the clutch elements and a brake member connected to the lever is operable for braking the drive sprocket when the clutch elements are disengaged.Type: GrantFiled: June 21, 1976Date of Patent: February 20, 1979Assignee: Andreas Stihl MaschinenfabrikInventor: Erich Muller
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Patent number: 4121336Abstract: The present invention relates to a combination hand held circular saw and chain saw and an adapter to convert a conventional hand held circular saw to a chain saw comprising a hand held power means which includes housing means provided with handle means, motor means mounted in paid housing means said motor means provided with shaft means, and a surface plate operably mounted on said housing means, in combination with frame means, said frame means comprising an alignment plate, chain saw housing means and alignment means, sprocket means operably mounted on said motor shaft means, chain saw frame means adjustably mounted to said frame means and chain saw means.Type: GrantFiled: January 21, 1977Date of Patent: October 24, 1978Inventor: Ellis R. Loyd
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Patent number: 4121636Abstract: Apparatus for splitting logs adapted for use with a power head of a chain saw comprising a screw jack mounted for rotation on the interior of a support channel, the input end of the screw jack being connected through a plurality of reduction gears to a drive sprocket. The screw jack itself is in turn threadably engaged to a travelling axe head conformed for sliding translation within the support channel. A part of the axe head is shaped as a wedge projecting beyond the confines of the channel to advance therealong towards a V-shaped stop bracket. An eliptical cam is mounted for rotation in the thick end of the wedge to be articulated from its narrow alignment to a broad alignment by an articulating lever disposed to advance against one of the legs of the V-shaped stop bracket. As the eliptical cam is thus rotated, expanding the lateral dimension of the axe, separation of the split is achieved.Type: GrantFiled: July 21, 1977Date of Patent: October 24, 1978Inventor: Robert G. James
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Patent number: 4114265Abstract: A cake cutter and server which is formed of an integral piece of material. The server has a first enlarged section hingedly connected to a second triangular shaped section. Along the free edge of the second section is located a cutting edge. The second section is adapted to be pivoted to an approximately ninety-degree angle with respect to the first section. With the server used flat, a wedge shaped section of cake can be cut. Once cut, the wedge shaped section of cake can be readily removed by causing the second section to assume a right angle position to the first section and inserting the section under the section of cake and removing such. The second section is also adapted to be pivoted to the right or left to provide for use as a left-handed or right-handed server.Type: GrantFiled: November 4, 1977Date of Patent: September 19, 1978Inventor: Robert L. Bailey
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Patent number: 4089114Abstract: A cordless electric lawn edger utilizes a flexible strand of nylon monofilament rotated at high speed to effect cutting of grass and weeds. The rotating assembly mounting the strand is substantially conical in order to reduce drag and prevent grass from wrapping around the assembly. The strand is fixedly secured within a detachable and disposable tip member which easily snapfits into a rotatable truncated cone member. The cone member is, in turn, secured to the drive shaft of a DC motor. The edger is provided with both a grip handle and a loop handle arranged for optimum tool balance and handling.Type: GrantFiled: June 2, 1977Date of Patent: May 16, 1978Assignee: Disston, Inc.Inventors: Stephen Dale Doolittle, Lynn David Lineback, Charles Franklin Sherrill, Willie Lonnie Stanfield, Jr., Kelvin Howard Wildman
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Patent number: 4048722Abstract: A new sawing arrangement and a new attachment for use in such an arrangement. An elongated rigid power train is interposed between the power unit and the cutting head of a chain saw. It is secured to and chain driven by the former, and to it the latter is secured in driving relation.Type: GrantFiled: June 28, 1976Date of Patent: September 20, 1977Inventor: Byron W. Howard
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Patent number: 4033035Abstract: A large dimension beam cutting, detailing and mitering attachment for removable connection to the base plate of a portable circular power saw, wherein the cutting blade has been removed therefrom, and which includes a flat base attachment plate having a flat cutter bar and endless saw chain arranged thereon, with the bar fixedly attached thereto and depending at right angles therefrom. A sprocket associated with the saw chain is mounted on the drive shaft of the saw and the base attachment plate flatly receives and has means for attaching the cicular saw base plate thereto so that beams may be smoothly cut or mitered when the attachment plate is flatly disposed thereon and moved thereover. This enables the saw chain to be used in the same manner as a circular saw.Type: GrantFiled: August 3, 1976Date of Patent: July 5, 1977Inventor: David G. Trimmer