Mechanical guns and projectors – Spring – Bow
Patent
1996-02-26
1998-05-12
Ricci, John A.
Mechanical guns and projectors
Spring
Bow
F41B 512
Patent
active
057493480
ABSTRACT:
A crossbow apparatus includes a rearward stock portion including a bow string engaging structure; a forward stock portion including a bow fitted with a bow string; and a hydraulic drive mechanism interconnecting the rearward stock portion and the forward stock portion for separating the rearward stock portion and the forward stock portion while the bow string is engaged by the engaging structure to draw the bow. The forward stock portion preferably includes a longitudinal passageway and the rearward stock portion preferably includes a forwardly protruding guide rod slidably fitting into the longitudinal passageway for strengthening and stabilizing the apparatus when the forward stock portion and the rearward stock portion are separated. The rearward stock portion preferably includes the hydraulic drive mechanism base containing a fluid accumulation reservoir, a plunger slidably extensible from the base under pressure of hydraulic fluid within the reservoir, and a fluid pump for delivering fluid into the reservoir under pressure greater than atmospheric pressure. The rearward stock portion preferably contains a cavity and the base is retained within the cavity, and the plunger has a plunger forward end and the plunger forward end is preferably secured to the forward stock portion.
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Beach Thomas A.
Kubler Frank L.
Ricci John A.
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