E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/52
E01C 23/12 (2006.01) B25D 11/06 (2006.01) B25D 17/28 (2006.01) B28D 1/26 (2006.01) E02F 3/96 (2006.01) E04G 23/08 (2006.01)
Patent
CA 1276083
Abstract of the Disclosure Boom Operated Demolition Apparatus and Method of Breaking Composite Material Demolition apparatus which is attached to a movable boom-like member of a machine. The demolition apparatus includes support structure which carries a power plunger and an actuator plunger. The plungers are mounted in adjacent relationship and are movable with respect to the support structure. A compression spring urges the power plunger in a direction from the support structure. The actuator plunger includes a latch device which engages a portion of the power plunger. In operation, the support structure is moved toward a surface to be demolished. The actuator member engages the surface and remains fixed as the support structure continues to move toward the surface. Therefore, as this occurs, there is relative movement between the support structure and the actuator plunger. A latch carried by the actuator plunger engages a part of the power plunger and retains the position of the power plunger with respect to the actuator plunger. Therefore, movement of the support structure toward the surface is opposed by the spring, and compression forces of the spring increase as such movement occurs. As the support structure is moved toward the surface, an abutment member carried by the support structure engages the latch and releases the latch from engagement with the power plunger. Thus, the power plunger is released for rapid movement by the spring, and the power plunger strikes the surface for demolition thereof.
530069
Kistner David
Smart & Biggar
LandOfFree
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