Patents by Inventor Walter E. Oshetski

Walter E. Oshetski 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: 7616019
    Abstract: Low profile printed circuit board assembly test fixtures and methods are disclosed, the fixtures mountable at a tester having a plurality of conductive interface contacts. The fixture includes a low profile mount defined by a frame having an interface bed at one end and a dynamic plate movably positioned at an opposite end thereof, a chamber being thereby defined and having an opening for evacuating air therefrom to effect movement of the plate. A plurality of conductive terminals extend through the interface bed, each of the terminals having a node at one end positioned at the bottom surface of the bed and corresponding to the position of one of the conductive interface contacts of the tester. A plurality of conductive probes in the chamber are secured at the top surface of the bed, are coupled to the terminals, and extend through the plate. The electronic assembly is selectively positioned atop the plate for probe access.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: November 10, 2009
    Assignee: Aspen Test Engineering, Inc.
    Inventors: Walter E. Oshetski, Todd C. Wyant, Matthew J. Wickett
  • Patent number: 4908017
    Abstract: Failsafe apparatus and method are disclosed for controlling fluid flow from syringes. One or more syringes are positioned so that the piston of each syringe is caused to be precisely displaced to thereby safely deliver medicament from the syringe to a patient. To effect movement of each piston, a rack is provided, either as a part of the piston or secured thereto, and longitudinal movement of each rack is effected by rotating an associated pinion gear that is connected with a pulse-driven, stepper motor utilized in a power-efficient electromechanical configuration, with the operation of the stepper motor being accomplished through dual-redundant state machines controlled by a pre-programmed memory unit, and with the apparatus being repeatedly subjected to a plurality of error checks and data integrity verifications to assure continued proper operation.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: March 13, 1990
    Assignee: Ivion Corporation
    Inventors: David C. Howson, Michael W. Fellinger, John A. Popken, Richard M. Altobellis, Bennett J. Scharf, Walter E. Oshetski