Chester J Marks Deceased214 Darrell St, Lafayette, LA 70501

6481158, Nov 19, 2002

Jun 2, 2001

09/872935

Chester J. Marks - Lafayette LA, 70501

E06B 368

49 57, 49394, 49141, 292177

A security grill adapted to securely close off a window or door but which may be manually released from within the building and allowing egress through the window while maintaining security and preventing unauthorized access from the exterior of the building. The grill is attached along one side by hinges and is lockable in position by a locking device on an opposite side. The locking device being a keyed dead bolt, which protrudes into a rapid release mechanism secured and shielded in the surrounding frame, which is secured by bolts to the building. The grill being spring biased to the open position with the release mechanism operable from inside the building also biased for rapid release.

6866309, Mar 15, 2005

Mar 27, 2003

10/402219

Chester J. Marks - Lafayette LA, US

E05C005/02

292 57, 292DIG 53, 292262

A deadbolt latch body externally mounted to an interior door encasement by an unconventional method. The latch assembly, including a slotted receiver member fastened to a hinged door adjacent the latch, includes a crank-shaped shot bolt carried by the latch body for engagement with the slotted receiver. The latch bolt has al least two biased indented positions. The latch assembly may include a more secure dead bolt striker plate for existing internal dead bolts that provides even greater security when the striker plate is extended from between the door and the casement and secured between the security door latch body and the door casing. A unique mounting is provided for the latch body by providing a threaded mounting stud extending from the interior located latch body through the door encasement and retained exteriorly by a recessed threaded collar. A unique key is provided for allowing the door latch to be released from the door casement in an emergency by removing the exterior threaded collar or by unscrewing the threaded stud.

5738389, Apr 14, 1998

Mar 25, 1996

8/621319

Chester J. Marks - Lafayette LA

Marks Family Partnership, LLC of Louisiana - Lafayette LA

E05C 500

292 63

A door securing device has a body adapted for mounting on the door frame with a generally rectangular plate adjacent the body opposite the frame. The plate is attached to an arbor that slides axially perpendicularly to the inside wall. It is controlled by a groove and lug camming arrangement and can be rotated a selected amount to allow limited axial movement in selected rotational positions. The plate is shaped to clear the door when in a stowed position against the body. Pulled out, or actuated, the plate can rotate to place a plate extension in position to secure the door when slightly opened. The plate is moved back to stowing position by reversing the procedure engages the door in the closed position. A latch and latch release trigger is provided to release the arbor, and the plate, to extend to the actuated position.