Security door-locking system
OwnerAndrew Blehi, IIIinventor
Life of this patent
Estimating the term…
Abstract
A security door-locking system is described for locking closed doors of tractor cabs on truck tractors, for example, of the type used to pull over-the-road common truck trailers, and vehicles, etc., with similar pre-existing door latching systems. A flat rigid bar has a hole near one end for fitting over the striker pin on the door jamb; and the other end of the bar may be attached to a lock outside the tractor cab after the door is closed. A retainer between the lock and the door/door-jamb provides a secure locking arrangement. And a system like a ratchet provides for attaching the lock to the bar in a tight position with the door.
Claims20
A security door-locking system for locking an opening incorporating a hinged door, with a hinged side and an opening-outward side, and, adjacent said opening-outward side of said door, a door-jamb portion incorporating a striker pin adapted to be latched by a latch on said door, said system comprising:
- a. a lock;
- and
- b. bar means for rigid extension between said striker pin and said lock, said bar means being substantially flat and having first and second ends and comprising
- i. holding means adjacent said first end of said bar means for securely holding said first end of said bar means in place abutting said striker pin, and
- ii. lock attachment means adjacent said second end of said bar means for aiding attachment of said lock on said bar means;
- c. said lock, when a said door is closed, being selectively attachable, outward of a said opening, to said bar means adjacent said second end of said bar means;
- and
- d. said lock being selectively lockable, outward of a said opening, to said bar means;
- e. wherein said system is constructed and arranged in such manner that said door may be held securely shut when said lock is attached on said bar means and said lock is in a locked condition.
A security door-locking system for locking a tractor cab having a tractor-cab door and a tractor-cab door-jamb portion incorporating a striker pin adapted to be latched by a latch on said door, said system comprising:
- a. a lock;
- and
- b. bar means for rigid extension between said striker pin and said lock, said bar means being substantially flat and having first and second ends and comprising
- i. holding means adjacent said first end of said bar means for securely holding said first end of said bar means in place abutting said striker pin, and
- ii. lock attachment means adjacent said second end of said bar means for aiding attachment of said lock on said bar means;
- c. said lock, when said tractor-cab door is closed, being selectively attachable exterior to said tractor-cab door to said bar means adjacent said second end of said bar means;
- and
- d. said lock being selectively lockable exterior to said tractor-cab door to said bar means;
- e. wherein said system is constructed and arranged in such manner that said tractor-cab door may be held securely shut when said lock is attached on said bar means and said lock is in a locked condition.
A security door-locking system for locking a tractor cab having a tractor-cab door and a tractor-cab door-jamb portion incorporating a striker pin adapted to be latched by a latch on said door, said system comprising the steps of:
- a. with said tractor cab door open, capturing said striker pin with a first end of a substantially-flat rigid bar in such manner as to prevent outward movement of said first end of said rigid bar;
- b. aligning said bar approximately horizontally in such manner that a second end of said bar is exterior to said tractor cab;
- c. closing said tractor-cab door in such manner that said second end of said bar remains extended from said tractor cab;
- d. providing a lock constructed and arranged to lock onto said bar adjacent said second end at a selected location;
- e. moving said lock adjacent said second end of said bar into a lockable location in such manner as to provide a restriction to an opening of said tractor-cab door;
- and
- f. locking said lock onto said bar.
Dependencies are inferred from the claim text.