Locking device to prevent door removal

Details Locking device to prevent door removal Locking device to prevent door removal

2006-06-13

2006-06-13

Mah, Chuck Y. (Department: 3677)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Including means to hold or retard hinged members against...

C016S261000, C016S380000, C070S014000, C070S057000, C070S230000

Reexamination Certificate

active

07059019

ABSTRACT:
A Locking Device To Prevent Door Removal (10) is provided to prevent theft of a type of door having a hinge pin fixedly attached to the door and a hinge bracket bolted to the door frame housing with bolt holes extending into the door frame housing. The device replaces one of the standard bolts, used to secure the hinge bracket, with an Elongated Bolt (12). A Blocking Piece (20) with a Blocking Piece Through-Hole (38) is positioned over the Elongated Bolt (12) and locked in place with a Padlock (42). The Shackle (40) of the Padlock (42) extends through a Bolt Through-Hole (18) in the Elongated Bolt (12). The Blocking Piece (20) blocks the hinge pin from being lifted out of the hinge sleeve. The Padlock (42) both holds the Blocking Piece (20) against movement and prevents the Elongated Bolt (12) from being removed.

REFERENCES:
patent: 3206793 (1965-09-01), Silverberg
patent: 3811150 (1974-05-01), Chalmers
patent: 4122693 (1978-10-01), Barr
patent: 4459832 (1984-07-01), Avrea et al.
patent: 5337453 (1994-08-01), Bargesser
patent: 5487288 (1996-01-01), Frantz
patent: 6202453 (2001-03-01), Disher et al.
patent: 6546766 (2003-04-01), Klingler
patent: 6981750 (2006-01-01), Krampotich

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