초록 ▼

Apparatus for applying additional momentum to the movement of a body adapted to reciprocate or flex through a substantially linear or arcuate path, notably of increasing the impact velocity of a linearly travelling weight upon an object. The apparatus includes an element for retracting the body from

Apparatus for applying additional momentum to the movement of a body adapted to reciprocate or flex through a substantially linear or arcuate path, notably of increasing the impact velocity of a linearly travelling weight upon an object. The apparatus includes an element for retracting the body from its rest position, notably for retracting a weight from the point of impact between the weight and an object located at the rest position of the weight and an element for biasing the body towards its rest position, notably for urging the weight towards the object so as to impart additional impact velocity to the weight as it travels toward the object. The apparatus is characterized in that: a) the element for biasing the body towards its rest position is an elastic polymeric material which is retained under tension or compression when the body is in its rest position; and b) the biasing element is one which undergoes strain crystallization. Also a method for breaking or penetrating a surface using the apparatus.

대표청구항 ▼

[ We claim:] [1.] Apparatus for applying additional momentum to a first momentum of a body that moves, by a movement selected from the group consisting of reciprocating movement and flexing movement, from a rest position through a path selected from the group consisting of a substantially linear pat

[ We claim:] [1.] Apparatus for applying additional momentum to a first momentum of a body that moves, by a movement selected from the group consisting of reciprocating movement and flexing movement, from a rest position through a path selected from the group consisting of a substantially linear path and an arcuate path, which apparatus comprises means for retracting the body from the rest position, where the retracting means provides a retracting force, and means for biasing the body towards the rest position, where the biasing means provides a biasing force, characterized in that:a one of the biasing means and the retracting means is provided by an elastic polymeric material which is retained under a retension selected from the group consisting of tension and compression when the body is in the rest position; andb the said one of the biasing means and the retracting means is one which undergoes strain crystallization.