Patents by Inventor Pieter Engelander

Pieter Engelander 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: 5772878
    Abstract: The invention relates to a liquid filtration device, comprising a substantially cylindrical housing one end of which is closed and the other end of which is connected to a head provided with an inlet and an outlet, a filtration element being provided within said housing. According to the invention the housing is formed by a tube section of the desired diameter and cut at the desired length, said tube section being closed, at its end opposite from the head of the filtration device, by a bottom piece inserted therein with a sliding fit, the outer circumferential face of said bottom piece being sealed to the corresponding part of the inner circumferential wall of the tube section by means of at least one O-ring engaged in a corresponding groove, while the bottom piece end opposite from the head of the filtration device bears on a snap ring Provided within an inner circumferential groove of the tube section.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: June 30, 1998
    Assignee: Fairey Arlon B.V.
    Inventors: Alexander V. Eichelsheim, Pieter Engelander
  • Patent number: 4311892
    Abstract: A pressure limiting switch is provided for limiting the upper and lower limit values of the air pressure in a circuit feeding pneumatic controls. The switch has a switching arm which is pivotable at one end around a fixed axis in the switch body and adapted to actuate with its other end a microswitch closing a valve in the circuit if necessary. The air pressure is sensed by a movable element which engages the switching arm between the pivot axis and the microswitch. The switching arm is spring biased for compensating the microswitch spring. The air pressure range is adjustable through adjusting discs serving as abutments for movement of the switching arm.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: January 19, 1982
    Assignee: Beta, B.V.
    Inventor: Pieter Engelander
  • Patent number: D374912
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: October 22, 1996
    Assignee: Fairey Arlon B.V.
    Inventor: Pieter Engelander