Patents Examined by Rennee S. Luebke
  • Patent number: 5990429
    Abstract: A subassembly having a main housing and an electric switch arranged within the main housing. The main housing has a wall provided with an opening and the switch has a switch housing and an actuating element. The switch is arranged within the main housing such that the actuating element projects through the opening in the wall so as to extend exteriorly of the main housing and thus be actuatable from the exterior of the main housing. The wall has a first contact surface in the region of the opening and the switch housing has a second contact surface in the region of and surrounding the actuating element. The two contact surfaces are in pressure contact with each other when the switch is installed in the main housing with the actuating element of the switch projecting through the opening, thereby eliminating the need for an additional seal between the contact surfaces of the main housing and the switch housing.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: November 23, 1999
    Assignee: Marquardt GmbH
    Inventor: Markus Kramer
  • Patent number: 5134870
    Abstract: An electronic lock for a safe door is provided with a digital keypad entry device, a mechanical bolt works and associated handle for retracting the door bolts, and a spring biased rotary bolt which engages and precludes operation of the bolt works, such that upon entry of the predetermined code into the entry device, an electric signal causes a solenoid to energize and retract its armature from a blocking position relative the rotary bolt, further enabling the rotary bolt to rotate against its bias in response to mechanical maniupulation of the handle by the user to retract the door bolts. Unauthorized operation of the safe handle causes the rotary bolt to be locked into a fixed position, preventing entry into the safe.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: August 4, 1992
    Assignee: La Gard, Inc.
    Inventors: Alan K. Uyeda, Klaus W. Gartner, Peter J. Phillips, John Herrmann