Patents by Inventor Michael Alchin

Michael Alchin 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).

  • Sliding door lock
    Publication number: 20060130543
    Abstract: A lock 10 for a sliding door or window. The lock 10 includes a hollow body 11 within which there is pivotally mounted a pair of hook tongues 14 and 15. The tongues are driven by rack gears 54 which are operated by a lock cylinder 19. The rack gears 54 move linearly in opposite directions to cause angular movement of the tongues 14 and 15 in opposite rotational directions.
    Type: Application
    Filed: December 22, 2004
    Publication date: June 22, 2006
    Inventors: Michael Alchin, Richard Zitzelsperger
  • Striker assembly for a door lock
    Publication number: 20050167996
    Abstract: A striker assembly (10) to be attached to a doorjamb to engage the tongue of a lock mounted on an associated door, the assembly (10) includes a base (11) to be fixed to the doorjamb and a striker member (15). The striker member (15) is adjustable relative to the base (13).
    Type: Application
    Filed: December 21, 2004
    Publication date: August 4, 2005
    Inventor: Michael Alchin
  • Self-contained spring balance system
    Patent number: 5924683
    Abstract: The invention pertains to a spring balance system for sliding windows. The self-contained apparatus comprises a small diameter tube (11) and a larger diameter tube (12). The two tubes are telescopic with respect to one another. A spring (15) extends through the length of both tubes. There is a frictional engagement between the two tubes. At one end there is a means (17) for attaching the apparatus to a sliding window. The other end comprises a support (13).
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: July 20, 1999
    Assignee: Alchin & Long Pty Ltd.
    Inventor: Michael Alchin
  • Pushbutton lock for sliding doors
    Patent number: 5390516
    Abstract: A lock or catch (10) is shown for a sliding door or window. The lock has a tongue (13) which can pivot to engage or disengage with a fixed frame part of a frame in which the door or window can slide. The lock has two buttons (16,17) which are respectively operable to move a lock (20,21,23,25,31) so the tongue (13) is moved to a first position (such as an unlocked condition) and to a second position (such as a locked condition).A cylinder lock (not shown) can be used to lock the lock and therefore the tongue (13) in a locked condition.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: February 21, 1995
    Assignee: Dowell Australia Limited
    Inventor: Michael Alchin