Patents by Inventor Richard D. Haugen

Richard D. Haugen 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).

  • Pneumatic devices with noise dampening
    Patent number: 4685485
    Abstract: A pneumatic device having a housing defining at least two chambers with one of the chambers having a nozzle located therein, a diaphragm separating the two chambers, main pressure connected to one of the chambers, an output line connected to one of the chambers for providing an output signal having a value dependent upon the interaction between the nozzle and the diaphragm, and a dampening apparatus located within one of the chambers and touching the housing, the dampening apparatus being flexible for permitting movement of the diaphragm to control the output pressure in the output line and to dampen noise.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: August 11, 1987
    Assignee: Honeywell Inc.
    Inventor: Richard D. Haugen