Patents by Inventor Lawrence L. Freck

Lawrence L. Freck 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: 6393883
    Abstract: The present invention provides a tubular keyed cam lock with increased resistance to tampering. The cam lock has a rear screw which attaches the cam to the rotatable cam of the lock, thereby increasing the strength of the lock by preventing the lock from being pried off. The lock includes a plug body with a key entering end and a cam actuating end, a plurality of spring biased pin tumblers engaging the key when the key is inserted into the plug body and a lock housing within which the plug body is rotatably positioned. The lock housing has at least one limit stop disposed thereon. As discussed above, the cam-actuating end of the plug body is connected with a screw to a metal stop plate.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: May 28, 2002
    Assignee: Royal Lock Corp.
    Inventor: Lawrence L. Freck
  • Patent number: 6209369
    Abstract: The present invention provides a key actuated cam lock. The cam lock has a corrosion resistant metal cap. A weather resistant plug cap is rotatably mounted in the corrosion resistant metal cap. The weather resistant plug cap has an opening permitting the entry of the key. A plug body is located adjacent to the plug cap. The plug body has a key entering end and a cam actuating end, and a plurality of spring biased disc tumblers engaging the key when the key is inserted into the plug body. The cam lock also has a lock housing so that the plug body is rotatably positioned within the lock housing. The lock housing has at least one limit stop disposed thereon. The plug body has an internal O-ring providing a weather resistant seal located near the cam actuating end of the plug housing. The O-ring is disposed between the cam actuating end of the plug body and the lock housing.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: April 3, 2001
    Assignee: Royal Lock Corporation
    Inventor: Lawrence L. Freck
  • Patent number: D435781
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: January 2, 2001
    Assignee: Royal Lock Corporation
    Inventor: Lawrence L. Freck
  • Patent number: D520340
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: May 9, 2006
    Assignee: Royal Lock Corporation
    Inventor: Lawrence L. Freck
  • Patent number: D410190
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: May 25, 1999
    Assignee: Royal Lock Corporation
    Inventor: Lawrence L. Freck