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US 4,309,126 AGranted
Machine for separating concrete from steel
OwnerDeems M. Pfaffinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for pulverizing concrete sheets such as roadways, and for separating reinforcing steel from concrete, having an anvil for positioning under and in supporting relationship to the concrete, a hammer for repeatedly striking the concrete from above, and a drive mechanism for imparting relative movement between the concrete and the anvil and hammer combination.
Claims17
An apparatus for pulverizing concrete and like material, comprising
- (a) anvil means for positioning under and in supporting relationship to said concrete;
- (b) hammer means for repeatedly striking said concrete from above, said hammer means being positioned over said concrete and said anvil means;
- and
- (c) means for forcing movement of said hammer and anvil means relative to said concrete.
1 more element
An apparatus for pulverizing concrete on roadways, and for separating same from reinforcing steel embedded therein, comprising
- (a) a movable wedge-shape structure for urging beneath said concrete;
- (b) a frame assembly attached to said wedge-shape structure and having a transverse beam bridging said concrete;
- (c) at least one movable carriage carried by said beam, and having a reciprocable hammer attached thereto;
- (d) means for moving said carriage along said beam to a plurality of positions over said concrete;
- (e) motive power means attached to said wedge-shape structure for sliding said structure under said concrete and along said roadway;
- and
- (f) means for reciprocating said hammer against said concrete while said concrete is supported on said wedge-shape structure.
4 more elements
Dependencies are inferred from the claim text.