Patents by Inventor Brian Tjenstrom

Brian Tjenstrom 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).

  • Scavenge oil system
    Patent number: 4756664
    Abstract: The scavenge oil system disclosing the invention has a scavenge oil outlet located at the bottom of a blower housing whereby lubricating oil can flow thereto by gravity in most attitudinal positions of the housing. When the blower housing is in an attitude that a portion thereof, such as the rear, is at a level lower than the scavenge oil outlet, a scavenge pump, having an impeller driven by the blower shaft, is rendered effectively operable by having an inlet beneath the level of oil at the rear of the housing and the scavenge pump pumps the oil to a higher level whereby it may flow from the housing by gravity through either the scavenge oil outlet of the housing or through other passages.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: July 12, 1988
    Assignee: Sundstrand Corporation
    Inventors: Mordehy Cohen, James L. Bettenga, Brian Tjenstrom
  • Scavenge oil system
    Patent number: 4683984
    Abstract: The scavenge oil system disclosing the invention has a scavenge oil outlet located at the bottom of a blower housing whereby lubricating oil can flow thereto by gravity in most attitudinal positions of the housing. When the blower housing is in an attitude that a portion thereof, such as the rear, is at a level lower than the scavenge oil outlet, a scavenge pump, having an impeller driven by the blower shaft, is rendered effectively operable by having an inlet beneath the level of oil at the rear of the housing and the scavenge pump pumps the oil to a higher level whereby it may flow from the housing by gravity through either the scavenge oil outlet of the housing or through other passages.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: August 4, 1987
    Assignee: Sundstrand Corporation
    Inventors: Mordehy Cohen, James L. Bettenga, Brian Tjenstrom