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US 4,539,774 AGranted
Rodent exterminator
AssigneesAlice Hamilton Guest, Robert Lyman Hamilton, Neil Wesley Hamilton
InventorLyman L. Hamilton
Life of this patent
Estimating the term…
Abstract
A rodent exterminator triggered by the presence of a rodent in close proximity thereto having a spear attached thereto which impales the rodent, killing it instantly. A remote trigger actuates a solenoid to release a spring biased plunger, which is propelled into a firing pin to detonate a cartridge. Explosive gases from the cartridge actuates a plunger which has the spear attached thereto.
Claims4
A rodent exterminator, comprising:
- a hollow barrel having:
- receptacle means at one end wherein an explosive cartridge is placed;
- bearing means having a hole therein at the end opposite said receptacle means, and
- holes in the periphery of said hollow barrel located nearer to said bearing means than to said recepotacle means;
- plunger means positioned inside said hollow barrel and slidable therein between said receptacle means and said bearing means;
- a spear attached to said plunger means and extending through said hole in said bearing means whereby a rodent is impaled by said spear when said cartridge is detonated, and
- detonating means for detonating said cartridge including firing pin means and trigger means activated by the presence of a rodent in close proximity to said spear.
4 more elements
Dependencies are inferred from the claim text.