The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 1992
Filed:
Feb. 12, 1990
Hugh Hackett, Glencairn, Ontario, CA;
James H Stade, Elk Grove Village, IL (US);
Russell E Hattis, Highland Park, IL (US);
Other;
Abstract
An attack-repellent device includes a housing which can be carried like a wristwatch on the arm of the user, or attachable to a waling cane, or the user's belt or neck chain. The housing includes one or more nozzles which ejects an attack-repellent chemical under the force of a propellent fluid preferably stored in one or more canisters within the housing. The inner end of each nozzle forms a projection insertable into the discharge orifice in a canister which contains a one-way valve which normally closes the discharge orifice. A spring is provided for urging one or both of the nozzle and canister toward the other. Latching means is provided for normally separating each canister from the associated nozzle. A user-operable member is provided which could be a wall of the housing which normally covers over an entry recess through which the canister or canisters are placed within the housing. This member is normally latched into an inactive position and includes a member which is interposed between the nozzle and associated canister. Activation of the device preferably occurs with the pulling of this member from its normally latched position.