Manually Locked, Key-released Patents (Class 70/DIG27)
  • Patent number: 5385039
    Abstract: A lock for furniture includes a plunger assembly for actuating a lock mechanism. The plunger assembly includes a reader for receiving a control signal from a key. The plunger assembly includes a curved surface for contacting a lock rod such that the plunger assembly requires a constant force to move the lock rod through its range of motion to a locked position. A catch assembly secures the plunger, and hence the lock rod, in a locked position. A solenoid shifts the catch assembly to release the plunger assembly. The lock assembly may also include a lever connected at one end to the catch assembly and having a counterweight on an opposite end.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: January 31, 1995
    Assignee: Steelcase Inc.
    Inventors: Thomas G. Feldpausch, Joseph R. Branc, Robert B. Lubinskas
  • Patent number: 5174619
    Abstract: A tailgate handle assembly in a housing including a flush-mounted handle and an adjacent key cylinder. The housing is spaced apart from a latch mechanism. A laterally extending lever is slidably actuated on the housing from a locked mode to an unlocked mode manually by rotation of the key cylinder, or electrically via a power actuator, and then pivoted by manual lift-pulling on the handle, to thereby lift a latch rod extending between the lever and the latch mechanism to actuate the latter.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: December 29, 1992
    Inventors: Frederick F. Bender, Earl L. Watson
  • Patent number: 4956983
    Abstract: A locking apparatus with a key comprising a cylindrical body, a cylindrical operation member mounted inside the body, a first spring for returning the operation member to an original position, a key rotor mounted inside the operation member, a second spring for urging the key rotor to rotate to an original position, a limiting member provided in the key rotor, a third spring for urging the limiting member to project outwardly from the key rotor, an engagement portion disposed in the body, the engagement portion being engaged with the limiting member projected outwardly by the third spring when the operation member is pushed inwardly by a predetermined stroke along the axis against the first spring by a manual operation, and a disengagement portion provide in the body, the disengagement portion unlocking the limiting member from the engagement portion thereby returning the operation member and the key rotor to original positions under the elastic forces of the first and second springs in response to rotation o
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: September 18, 1990
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Naokatsu Okamura, Noboru Yamaguchi, Shuji Masuda, Noboru Kanou
  • Patent number: 4565078
    Abstract: A locking assembly for a gate locking system comprises a gate movable within opposed channeled guide tracks with one track and gate having aligned apertures. The lock assembly is mounted on the track over the aligned apertures and has a locking bolt slidably mounted within its housing for axial movement between a locking position extending through the track and gate apertures, and an unlocked position removed from the gate and track apertures. The bolt has a radially projecting shoulder on its outer surface between its inner and outer ends. A spring biases the bolt towards its unlocked position. A lug is movably mounted in the housing between a first position engaging the bolt and retaining the bolt in its locking position, and a second position disengaged from the bolt for releasing the bolt for axial movement within the housing.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: January 21, 1986
    Inventor: Martin D. Solomon
  • Patent number: 4413489
    Abstract: A lock for furniture or similar articles with a flexible tamboured cover which traverses a track. Upon actuation of the lock, the pin is shifted within the track and prevents movement of the cover therein.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: November 8, 1983
    Assignee: Packard Industries, Inc.
    Inventor: Norman E. Hogue
  • Patent number: 4380915
    Abstract: A latch, as for a door, having a handle movable to latch and unlatch the door and a removable lock located within the handle. The lock is provided with a stop engaging finger on its end and a retractable bolt on its side. The lock receptacle in the handle has a plurality of bolt engaging surfaces therein which hold the lock in the handle in a locked position wherein the finger engages the stop to prevent movement of the handle, hold the lock in the handle in an unlocked position in which the finger does not engage the stop, and provide a means whereby the bolt may be completely retracted for lock removal.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: April 26, 1983
    Assignee: The Eastern Company
    Inventors: Herbert Kincaid, Michael L. Wray
  • Patent number: 4313320
    Abstract: An improved and simplified dead bolt rim lock, which provides "classroom function". A dead bolt is fixed on a draw plate slidable in a rim lock case and having a cross slot which extends one way from center and is engaged by a crank pin movable in an arc between front and rear centered positions. The crank pin is on a crank arm carried by a turnknob rotatable in the rim lock case, and its projecting end lies in the path of a cam mounted for rotation in the back plate of the case and connected for operation from a key-actuated cylinder mounted in the outside face of the door. For classroom function, the turnknob has a limited throw and has lost motion relative to the crank arm so as to allow retraction of the bolt by the turnknob but prevent its advancement thereby to locked position.
    Type: Grant
    Filed: November 30, 1978
    Date of Patent: February 2, 1982
    Assignee: Best Lock Corporation
    Inventors: Walter E. Best, William R. Foshee