Canisters for pressurized gas and personal security devices utilizing same

Claim 1

A personal security device comprising, in combination, an elongate canister having a discharge nozzle with an operating plunger at the top of the canister adapted to be depressed by thumb pressure for discharging from the canister contents such as tear gas, and an elongate holster in which the canister is received snugly with the nozzle having a discharge opening at one side of the holster, the holster including a main body part and a fold-over flap with fastener means to secure an end of the flap to the main body part with the flap extending over the nozzle and with the flap and the main body part defining an opening by which the contents of the canister may be discharged through the nozzle at said one side of the holster, the flap being sufficiently flexible to permit the thumb of a user's hand to depress the plunger of the nozzle while the canister is in the holster, the main body part of the holster having an elongate ridge extending along the length of said one side of the holster to engage fingers of said hand and having at the opposite side of the holster a smooth curvature along its length to fit the palm of the hand, whereby when the device is grasped in the user's hand in an emergency, the fingers engage said ridge by feel and the smoothly curved side of the holster fits in the palm of the user's hand, with the thumb on the flap, and the discharge opening is aimed toward an assailant automatically when the ridge is oriented toward the assailant.