Patents by Inventor Donald L. Dolan

Donald L. Dolan 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).

  • External urinary catheter
    Patent number: 7087043
    Abstract: An external urinary catheter includes a housing, an annular base, and a cap which are assembled to form a container which is placed over the penis to receive urine passing from the urethra. A fitting in the side of the container permits one to connect the container to a remote receptacle. A stretchable condom-like sleeve secured around the base prevents liquid leakage between the base and the penis.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: August 8, 2006
    Inventor: Donald L. Dolan
  • External urinary catheter
    Publication number: 20040034335
    Abstract: An external urinary catheter includes a housing, an annular base, and a cap which are assembled to form a container which is placed over the penis to receive urine passing from the urethra. A fitting in the side of the container permits one to connect the container to a remote receptacle. A stretchable condom-like sleeve secured around the base prevents liquid leakage between the base and the penis.
    Type: Application
    Filed: February 28, 2003
    Publication date: February 19, 2004
    Inventor: Donald L. Dolan
  • Energy absorbing safety barrier
    Patent number: 6604888
    Abstract: An energy absorbing safety barrier is made of at least one horizontal stack of used tires, bolted together at the sidewalls. Both ends of the stack are closed by attached plates or an adjoining barrier. When the stack is struck axially, air escapes from the stack at a controlled rate through vents formed by forming U-shaped cuts in the tires. The vents close at the end of the impact to reduce or eliminate rebound.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: August 12, 2003
    Inventor: Donald L. Dolan
  • ENERGY ABSORBING SAFETY BARRIER
    Publication number: 20030103808
    Abstract: An energy absorbing safety barrier is made of at least one horizontal stack of used tires, bolted together at the sidewalls. Both ends of the stack are closed by attached plates or an adjoining barrier. When the stack is struck axially, air escapes from the stack at a controlled rate through vents formed by forming U-shaped cuts in the tires. The vents close at the end of the impact to reduce or eliminate rebound.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 5, 2003
    Inventor: Donald L. Dolan
  • Collapsible rack
    Patent number: 4261470
    Abstract: A rack which is easily knocked down and set up comprises a base and corner standards releasably attached to that base. A plurality of rails are releasably coupled to the corner standards. The rack can also be used as a skid and coupling members are disclosed which quickly and easily attach the rails to the corner standards. Several forms of the coupling members are disclosed.
    Type: Grant
    Filed: May 1, 1979
    Date of Patent: April 14, 1981
    Inventor: Donald L. Dolan