Article: Finnish Inventor Develops Latch Bolt Deadlocking Arrangement System

Article: Patent No. 7,607,704 Issued on Oct. 27, Assigned to Hardware ...
US Fed News Service, Including US State News;  November 4, 2009 ;     503 words ... ... Wis., has developed a push-pull latch bolt mechanism. The inventor was issued ... an improved spindle arrangement for a latch bolt mechanism for a hinged door, and in particular, to a latch bolt mechanism actuated by spring-loaded ...

Article: Tennessee Inventors Develop Reversible Latch Bolt
US Fed News Service, Including US State News;  September 21, 2006 ;     563 words ... ... Sept. 21 -- Chris Hodgin of Louisville, Tenn., and J. Steven Gray of Maryville, Tenn., have developed a reversible latch bolt for a mortise lock of the type comprising a housing for accommodating the lock components. According to the U.S. Patent ...

Article: Hardware & fasteners. (Product Knowledge Handbook 2002).
Do-It-Yourself Retailing;  May 1, 2002 ;     700+ words ... ... is a positive locking latchbolt used on most quality locks for entry doors. The latch bolt, which is similar to a common springlatch, has a small auxiliary bolt along its side, which, when depressed, blocks the main bolt from being forced ...

Article: Home security.(locks for keeping home safe and secured)
Do-It-Yourself Retailing;  August 1, 2004 ;     700+ words ... ... is a positive locking latchbolt used on most quality locks for entry doors. The latch bolt, which is similar to a common springlatch, has a small auxiliary bolt along its side that when depressed, blocks the main bolt from being forced. Because ...

Article: Home security.(Hardware & Fasteners)
Hardware Retailing;  August 1, 2006 ;     700+ words ... ... is a positive locking latchbolt used on most quality locks for entry doors. The latch bolt, which is similar to a common springlatch, has a small auxiliary bolt along its side that when depressed, blocks the main bolt from being forced. Because ...

Article: Hardware & Fasteners.
Do-It-Yourself Retailing;  May 1, 2000 ;     700+ words ... ... is a positive locking latchbolt used on most quality locks for entry doors. The latch bolt, which is similar to a common springlatch, has a small auxiliary bolt along its side ,which, when depressed, blocks the main bolt from being forced ...

Article: Door monitoring basics.
Doors and Hardware;  April 1, 1992 ;     700+ words ... ... when a door is not latched, a latch bolt monitor would be switch to choose ... hidden for security purposes. Latch bolt monitor switches may be built into ... monitor strike, so that the extended latch bolt depresses a tripper that activates ...