Patents Assigned to Palmer Grasse
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Patent number: 4669784Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supporting the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising a lightweight rugged connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head. The connecting element includes two parallel and spaced legs extending between the first and second tubular parts and integrally merging with the sides thereof at locations spaced from the opposite ends thereof. First webs on each leg have edges tangent with the tubular parts, and they define planes intersecting thickened lugs on the head, and also eccentrics on a drive shaft. Second webs on the legs intersect the first web at enlarged areas of the legs.Type: GrantFiled: February 24, 1986Date of Patent: June 2, 1987Assignee: Palmer GrasseInventor: Palmer Grasse
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Patent number: 4598476Abstract: A heavy duty scraper tool comprises:(a) two steel plates extending in parallel relation to clamp a steel scraper blade therebetween, so that the blade projects forwardly from between the plates to present a forward scraping edge,(b) adjustable fasteners extending between the plates to clamp them toward and against said blade and so that the fasteners can be loosened to permit blade removal and replacement,(c) a connection integral with one plate and forming a pipe thread,(d) an elongated metal pipe having a thread at one end thereof and threadably joined to said connection to extend rearwardly relative to said plates,(e) and a handle carried by the pipe, remotely rearwardly from the plates.Type: GrantFiled: February 6, 1985Date of Patent: July 8, 1986Assignee: Palmer GrasseInventor: Palmer Grasse
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Patent number: 4504093Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supported the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the frame having side members, the apparatus comprising(a) a connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head,(b) a drive shaft extending within the first tubular part, the shaft operatively connectible to the drive to be rotated thereby, and(c) support bearings removably attached to the frame side members, the drive shaft having end portions rotatably supported by the bearings,(d) the frame side members having apertures into which the drive shaft extends, said apertures opening peripherally to pass and thereby free the drive shaft from the frame, when the bearings are detached from the frame said members whereby the drive shaft and said firstType: GrantFiled: June 27, 1983Date of Patent: March 12, 1985Assignee: Palmer GrasseInventor: Palmer Grasse
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Patent number: 4483566Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supported the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising(a) a connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head,(b) a drive shaft extending within the first tubular part, the shaft operatively connectible to the drive to be rotated thereby,(c) said drive shaft carrying eccentric means to be rotated by the shaft,(d) bearing means carried by and within said first tubular part, said bearing means receiving said eccentric means to oscillate said first tubular part, said head and said blade as said eccentric means is rotated by the shaft,(e) and counterbalance means located on said drive shaft to rotate therewith and reduce vibration created by said oscillation.Type: GrantFiled: March 9, 1983Date of Patent: November 20, 1984Assignee: Palmer GrasseInventor: Palmer Grasse
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Patent number: 4452492Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supporting the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising(a) a connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head,(b) a drive shaft extending within the first tubular part, the shaft operatively connectible to the drive to be rotated thereby,(c) the head having two elongated flanges interconnected by a web, the flanges being locally thickened near upper ends of the elongated flanges, to define two lugs, and(d) self lubricated bearing bushings in the lugs to form bearing openings defining a pivot axis parallel to said drive shaft, the bearing openings receiving a bearing shaft connected to the frame.Type: GrantFiled: November 22, 1982Date of Patent: June 5, 1984Assignee: Palmer GrasseInventor: Palmer Grasse