Patents by Inventor Curtis Mitchell Brownlee

Curtis Mitchell Brownlee 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).

  • Rolling seal for a well having a rod-type pump
    Patent number: 4086819
    Abstract: A rolling seal assembly for sealing between a well head and a pump rod reciprocating a predetermined stroke distance through an opening in the well head, the seal assembly comprising a substantially tubular, flexible seal encircling the rod adjacent to the well head, the seal having a first end sealingly connected around the rod and a second end sealingly connected to the well head around the opening, the seal rollingly extending between the first and second ends thereof as the first end reciprocates with the rod.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: May 2, 1978
    Inventor: Curtis Mitchell Brownlee