Patents by Inventor Michael H. Voelz

Michael H. Voelz 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: 6200585
    Abstract: An apparatus for maintaining the eyes of an animal, such as a dog or cat, closed during surgery to keep the surface of the eyes moist. The apparatus includes a collar, a head pad connected to the collar and positioned between an animals ears on its forehead, and a pair of straps also connected to the collar positioned to extend from beneath the animal's chin over the animal's eyes and to be fastened to the head pad. The head pad and straps cooperate to pinch or force together loose skin above and below the eyes to close the eyelids and prevent drying out thereof. A lead line extending from the collar attaches to a non-movable structure so that when the animal awakens, the movement of the animal pulls the collar loose from around the neck.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: March 13, 2001
    Inventor: Michael H. Voelz
  • Patent number: 4940059
    Abstract: A polygraph for detecting and displaying the beat by beat changes in the relative rate of increase of the blood pressure of the heart. Electronic circuitry for measuring the derivative of the blood pressure pulse, and displaying it on either a separate channel or by adding it to the top of the blood pressure pulse waveform from which it was derived is disclosed.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: July 10, 1990
    Assignee: Lafayette Instrument Co., Inc.
    Inventor: Michael H. Voelz
  • Patent number: 4899735
    Abstract: A wrist and forearm range-of-motion exercising device includes a first member adapted to be secured to a portion of the hand, a second member adapted to be secured to a portion of the upper arm and interconnecting means, including a one-way clutch, for interconnecting the members and providing unidirectional rotation along the axis of interconnection. The device retains the forearm in the position to which it is rotated under the control of the patient or as assisted by a therapist. A tension release device may be actuated to allow the forearm to return to the relaxed position.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: February 13, 1990
    Assignee: Bissell Health Care Corporation
    Inventors: Kim R. Townsend, Susan G. Bledsoe, Michael Heidenreich, Michael H. Voelz
  • Patent number: 4779100
    Abstract: Apparatus for detecting and displaying on a polygraph record chart any change in either the sensitivity or balance control of each polygraph electronic module. The apparatus includes a detector in the form of a differentiator for detecting a change in voltage on the wiper of the sensitivity or balance potentiometer that produces a signal indicative of the voltage change, and a display operatively connected to the detector for displaying a signal indicative of the adjustment of the potentiometer. The record chart display includes circuitry having a monostable multivibrator configured as a non-retriggerable one shot device responsive to the voltage change signal from the detector to provide a single pulse driving signal to a pen driving motor. The circuitry also includes a rectifier circuit in the form of comparators responsive to the voltage change signal for producing a positive trigger signal to the one shot device.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: October 18, 1988
    Assignee: Lafayette Instrument Co., Inc.
    Inventor: Michael H. Voelz