Patents by Inventor Paul Rehkopf

Paul Rehkopf 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: 4377897
    Abstract: An improved ophthalmic needle and method for manufacturing the same for use with an ophthalmic instrument for extracapsular removal of a cataract. The needle comprises a coaxial tube portion, a separated tube portion, and a tank portion, interposed therebetween for flow conversion purposes. A metal-to-metal seal is effectuated between tubes at the coaxial portion by a spinning method employing a forming die in conjunction with a lathe. A unique use of fixtures is employed to properly orient the various tubes with respect to the tank and to effectuate joint sealing.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: March 29, 1983
    Assignee: Ocular Associates
    Inventors: Daniel M. Eichenbaum, Gerald Martin, Paul Rehkopf