Patents by Inventor William E. Wilkerson

William E. Wilkerson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Canisters for pressurized gas and personal security devices utilizing same
    Patent number: 5111968
    Abstract: Hand-held tear gas canisters and personal security devices utilizing same employ a tactile device, preferably in the form of an elongate ridge or rib, is provided on the outer surface of the canister, or on a holster which receives the canister, to facilitate orientation of the canister with a gas discharge nozzle thereof pointing away from the user. In use, by feeling the position of the ridge or rib, the user will be aware of the direction of gas discharge and can thereby avoid misdirection of the gas.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: May 12, 1992
    Inventor: William E. Wilkerson
  • Canisters for pressurized gas and personal security devices utilizing same
    Patent number: 4667851
    Abstract: Hand-over tear gas canisters and personal security devices utilizing same are herein disclosed. A tactile element, preferably in the form of an elongate ridge or rib, is provided on the outer surface of the canister, or on a holster which receives the canister, to facilitate orientation of the canister with a gas discharge nozzle thereof pointing away from the user. In use, by feeling the position of the ridge or rib, the user will be aware of the direction of gas discharge and can thereby avoid misdirection of the gas.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: May 26, 1987
    Inventor: William E. Wilkerson
  • Canisters for pressurized gas and personal security devices utilizing same
    Patent number: 4511062
    Abstract: Hand-held tear gas canisters and personal security devices utilizing same are herein disclosed. A tactile element, preferably in the form of an elongate ridge or rib, is provided on the outer surface of the canister, or on a holster which receives the canister, to facilitate orientation of the canister with a gas discharge nozzle thereof pointing away from the user. In use, by feeling the position of the ridge or rib, the user will be aware of the direction of gas discharge and can thereby avoid misdirection of the gas.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: April 16, 1985
    Inventor: William E. Wilkerson