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US 5,372,118 AGranted
Double barrel speargun
AssigneeE. Douglas Hougen
InventorsJohn W. Schmidt, III, Morgan R. Griesinger
Life of this patent
Estimating the term…
Abstract
A dual barrel speargun including an improved breach mechanism to prevent binding and an improved muzzle portion to increase speargun accuracy and decrease reload time. Also included is an improved safety mechanism whereby the safeties remain effective even after the triggers are partially depressed. The disclosed speargun is capable of converting from a fixed length tether to a spool type tether within seconds.
Claims18
A spear gun comprising:
- a barrel;
- a shaft guide block attached to said barrel, wherein said shaft guide block includes a longitudinal passage therethrough and a transverse passage, said longitudinal passage adapted to guide the path of a spear shaft upon discharge from said spear gun and wherein said transverse passage intersects said longitudinal passage and terminates at an outer surface of said shaft guide block, whereby said transverse passage allows said spear shaft to be placed in said longitudinal passage by passing said spear shaft through said transverse passage;
- a breach assembly having an opening therein adapted to accept a spear shaft;
- a latch mounted within said breach assembly;
- a band retainer mounted to said barrel and a band connected to said retainer;
- means for interconnecting said band to said spear shaft;
- a safety catch mounted to said breach assembly and interconnected to said latch to prevent said latch from moving until said safety catch is released.
4 more elements
A speargun of the type including elastic bands for propelling a spear shaft, said speargun comprising:
- a barrel;
- a band retainer mounted to said barrel, said band retainer including first and second openings therethrough, intermediate lateral extremities of said band retainer, extending generally longitudinally with respect to said speargun, and opening through top and bottom surfaces of said band retainer, said first and second openings being in communication with one another with said second opening being smaller than said first opening;
- and
- a third opening communicating with said first opening, said third opening connecting said first opening to a said lateral extremity of said band retainer, said third opening being adapted to initially receive a band and direct said band into said first and second openings;
- and
- said first and second openings being adapted to simultaneously retain a pair of bands.
3 more elements
Dependencies are inferred from the claim text.