With Mechanical Let-off Patents (Class 368/257)
  • Patent number: 5311488
    Abstract: An alarm clock is provided which coordinates mechanical motion or action with a distinctive sound, when the alarm clock reaches a set alarm time. The action alarm clock includes an elongated base defining a linear track for movement of an object such as a train engine between end stops when the alarm clock reaches the set alarm time. Such movement is accompanied by an audible sound comprising a novelty sound chosen to correspond with the nature of the moving object. When the moving object reaches a front end stop, the sound is terminated and a regular alarm clock signal is enabled.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: May 10, 1994
    Assignee: With Design In Mind
    Inventor: Herbert B. Trantham
  • Patent number: 4999821
    Abstract: A truck driver's wake-up device comprising a conventional mechanical alarm clock constructed from metal parts which are electrically conductive and having therein an alarm trip which moves in a predetermined path when an internal alarm system in the clock is actuated, a support for mounting the clock thereon, a high output buzzer capable of producing a loud alarm mounted on the support, the buzzer having first and second input leads for actuating the alarm when an input voltage of 8-16 volts DC is impsoed across the leads, a standard automotive cigarette lighter adapter having first and second outlet leads for providing approximately 12 volts DC output when the adapter is inserted into a standard cigarette lighter socket, the first output lead from the adapter being grounded to the clock, the second output lead from the adapter being connected to the second input lead to the buzzer, a non-conductive insulator plate connected to the clock adjacent the alarm trip, an electrically conductive spade connector atta
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: March 12, 1991
    Inventor: Ephraim A. Kirkland
  • Patent number: 4251878
    Abstract: In a battery powered alarm clock, an alarm switching device comprises at least one detecting wheel whose phase is set in accordance with the desired alarm time, at least one detecting switch which is closed when the phase of the time wheel of the clock corresponds to that of the detecting wheel and a printed circuit board having alarm circuitry mounted thereon with at least one land for connecting the alarm circuitry to one pole of the battery. The alarm switching device construction provides solderless connection by at least two battery contact plates for contacting the two poles of the battery. One of the plates provides three electrical contacts including a first contact with one pole of the battery, a second contact with the land on the printed circuit board and a third contact with the detecting switch, whereby the assembly and construction of the clock is greatly simplified.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: February 17, 1981
    Assignee: Seiko Koki Kabushiki Kaisha
    Inventors: Masuo Ogihara, Kozo Chimura, Nobuo Shinozaki