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High energy impact-based material removal apparatus

a material removal and high energy impact technology, applied in the field of construction equipment, can solve the problems of affecting the quality of construction materials, and affecting the quality of construction materials, and none of the above solutions have proved to be completely satisfactory

Inactive Publication Date: 2006-04-27
KINGHAM JAMES RICHARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention provides a material removal apparatus for removing material from a surface. The apparatus includes a frame with a handle, a tool shaft, and a tool head for engaging the material to be removed. An impulse delivery arrangement is attached to the frame and can apply a discrete impulsive force to the tool shaft. The apparatus can be controlled by selectively introducing compressed air into the air cylinder. The technical effects of the invention include improved material removal efficiency, reduced noise, and improved user control and comfort."

Problems solved by technology

Shingles degrade with time and weather, and must be replaced regularly.
Thus, removing shingles is very labor intensive, very expensive, and very slow.
None of the above solutions have proven to be completely satisfactory.
Most of the tools that have been used until now have been bulky and difficult to manipulate.
In general, vibratory or reciprocating tools are relatively ineffective for removing shingles and fasteners from roofing surfaces.

Method used

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  • High energy impact-based material removal apparatus
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  • High energy impact-based material removal apparatus

Examples

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examples

[0065] It will be understood that the material removal apparatus of the present invention may be constructed and scaled to any size for a particular application. In a typical hand-held, one-man material removal apparatus according to the invention, the combined weight of the tool shaft and tool head is in a range of about 1 pound and to about 5 pounds. A typical impactor weight is also in a range of about 1 pound and to about 5 pounds. In embodiments in which the impactor is a compressed air-driven piston, the operating air pressure may be in a range of about 30 psi to about 175 psi. The piston diameter is typically from about 1 to about 3 inches and the piston stroke is typically in a range from about 3 inches to about 9 inches.

[0066] An exemplary embodiment of a compressed air-driven material removal apparatus according to the invention may be used to illustrate the energy imparted to the tool head. The exemplary material removal apparatus has a piston with a diameter of 3.0 inch...

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PUM

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Abstract

A material removal apparatus for removing a material from a surface is provided. The material removal apparatus comprises a frame having distal and proximal frame portions, the proximal frame portion comprising a handle. A tool shaft is slidably mounted to the frame, the tool shaft having proximal and distal shaft ends and a longitudinal shaft axis. The tool shaft is movable between a first shaft position and a second shaft position distal to the first position. A tool head attached to the distal shaft end is adapted for engaging the material to be removed. The material removal apparatus also comprises an impulse delivery arrangement attached to the frame. The impulse delivery arrangement is adapted for selectively applying a discrete impulsive force to the proximal shaft end.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a Continuation-in-Part of U.S. application Ser. No. 10 / 972,283 filed Oct. 25, 2004, which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION [0002] The invention relates to the field of construction equipment, and in particular relates to powered tools for removing materials such as shingles or fasteners from surfaces, and for demolition. [0003] Shingles are frequently used to protect inclined roofs. The shingles may be asphalt, or wood, or tiles, and may be attached to the roof by nails or staples. Asphalt shingles faced with granular stone are often nailed into overlapping rows, with the upper row overlapping the lower row in order to keep out water. A layer of tar paper may be underneath the shingles. The shingles and tar paper are often attached to a wood roof. The wood roof often comprises inclined plywood nailed onto rafters. [0004] Shingles degrade with time and weather, and must b...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04D15/00
CPCB25C11/00E04D15/003
Inventor KINGHAM, JAMES RICHARD
Owner KINGHAM JAMES RICHARD