Mechanical guns and projectors – Spring – Elastic band
Patent
1994-12-27
1996-06-11
Nicholson, Eric K.
Mechanical guns and projectors
Spring
Elastic band
124 22, F41B 704
Patent
active
055246036
ABSTRACT:
A pistol type spear gun for use with a spear shaft comprising a body member having a handle portion adapted to be grasped in the hand of a user, with a trigger member positioned so as to be squeezed by the user on occasion. An elongate passage extends through the body member in approximately a right angle relationship with the handle portion, with this passage being adapted to receive a spear shaft. An elastic power band is attached to the body member and the base end of the spear shaft is able to be brought into contact with a mid portion of the power band when the spear shaft is moved in the cocking direction. The trigger member has a shaft contact point moved into forcible contact with a spear shaft in the elongate passage when the trigger member is squeezed. The spear shaft, when movement thereof in the cocking direction is continued, causes the elastic power band to stretch, with the trigger member, when squeezed by the user, serving to hold the spear shaft in a cocked position until the trigger member is released. I prefer to enlarge the height of the elongate passage above the location where the shaft contact point is brought into contact with the spear shaft, such enlargement of the elongate passage permitting the spear shaft to temporarily assume a bowed condition in which forward movement of the spear shaft through the elongate passage is inhibited.
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Nicholson Eric K.
Renfro Julian C.
Ricci John A.
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