Patents by Inventor Boris L. Contreras

Boris L. Contreras 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).

  • Regulator first stage for underwater diving
    Patent number: 4015630
    Abstract: A regulator first stage for underwater diving which provides an added low pressure port for connection to an automatic vest inflator. The added port permits a shorter and more direct connection between the regulator and inflator. It also provides restricted flow to the vest to prevent too rapid inflation and/or over-inflation and provide better control of the vest inflation by the diver.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: April 5, 1977
    Assignee: Pittman Products, Inc.
    Inventor: Boris L. Contreras