Patents by Inventor Karlheinz Riester

Karlheinz Riester 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: 4685452
    Abstract: The invention relates to an otoscope with a pivotally mounted loupe and the otoscope is configured such that all the parts can be inserted in sequence from one side of the housing head into an accommodation opening of the housing head.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: August 11, 1987
    Assignee: Rudolf Riester GmbH & Co. KG Fabrik
    Inventor: Karlheinz Riester
  • Patent number: 4643171
    Abstract: The invention relates to a method of manufacturing an otoscope, according to which method the component parts of the otoscope can be assembled with particular ease. In order to achieve this, a prefabricated fiber optics assembly is employed, and the otoscope is configured such that all the parts can be inserted in sequence from one side of the housing head into an accommodation opening of the housing head.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: February 17, 1987
    Assignee: Rudolf Riester GmbH & Co. KG Fabrik med. Apparate
    Inventor: Karlheinz Riester
  • Patent number: 4416287
    Abstract: A discharge valve for a blood pressure measuring device or the like, comprising a valve casing the interior of which is in fluid communication with an inflatable cuff and a pressure measuring device (gauge) and an air outlet leading to a flat valve seat located on the exterior of the valve casing, where the air outlet is closed off by an elastic (rubber) annular valve washer which is disposed with its central hole over a stud-shaped guide member and which has a ring-shaped control element on its outer edge, the control element being used for removing, i.e., deflecting away, the washer from the valve seat. By manual manipulation of the control element, air pressure is released with fine control from the inflated cuff.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: November 22, 1983
    Assignee: Rudolf Riester GmbH & Co., KG
    Inventor: Karlheinz Riester
  • Patent number: 4366811
    Abstract: This invention is an improvement in otoscopes for ear examinations and the like wherein disposable ear funnels are ejected from the instrument remotely thus avoiding contact by the examiner after use. An ejector is provided in the head portion of the housing of the instrument between the magnifying eyepiece and the ear funnel. The eyepiece is movably mounted so that it can be depressed to engage and move the ejector to thereby eject the ear funnel.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: January 4, 1983
    Assignee: Rudolf Riester GmbH & Co.
    Inventor: Karlheinz Riester
  • Patent number: D288960
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: March 24, 1987
    Assignee: Rudolf Riester GmbH & Co. KG
    Inventor: Karlheinz Riester