Patents by Inventor R. Douglas Roland

R. Douglas Roland 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).

  • Patent number: 4765365
    Abstract: A faucet spring utilized to urge the faucet seal member into sealing contact with the rotatable valving member and prevent large debris, such as valve washer screws from previous faucet assemblies, from contacting the valving member under the fluid pressure. The coil spring has a substantially frusto-conical configuration with a smaller diameter upper end which engages the seal and urges it against the valving member. The larger diameter lower end of the spring engages an annular shoulder of the counterbored inlet passage of the valve assembly. The lower end of the spring also includes an obstruction member formed as an extension of the coil spring which extends into the opening of the spring's lower end to prevent large debris from traveling through the spring and seal. As a result, the faucet spring provides the added function of preventing potentially damaging debris from contacting the valving member.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: August 23, 1988
    Assignee: Masco Corporation of Indiana
    Inventor: R. Douglas Roland