Door lock method and apparatus
OwnerKenneth Dargisinventor
Life of this patent
Estimating the term…
Abstract
A door lock mechanism is provided for positioning on the inside of the door and preventing the opening of the door. The mechanism comprises a main plate which slips over the doorknob handle, and a modified strike plate having an aperture structurally arranged for receiving a portion of the main plate. A simplified method is provided for easily and effectively securing a door, since the modified strike plate may be permanently secured to the doorjamb while the main plate may be quickly and easily positioned for locking the door. The method and apparatus of the present invention is well adapted for both commercial and residential use, since its components do not materially detract from the aesthetic qualities of the door.
Claims20
A door fastening device including a hinged door having an interior doorknob, an interior door handle neck portion, latch means, and a doorjamb having an opening for receiving said latch means, comprising:
- a flat plate portion fixedly mounted on said doorjamb and having a flat plate aperture generally positioned over said doorjamb opening;
- a strike plate securing portion fixedly secured to said flat plate portion independent of said hinged door and having an elongate bore arranged with a substantially vertical axis positioned generally adjacent an interior corner of said doorjamb;
- a main plate portion positioned over said door handle neck portion and having a slot for receiving said door handle neck portion;
- an edge portion of said main plate portion forming said slot being structurally arranged for engagement with said door handle neck portion;
- said vertical axis of said elongate bore spaced toward said flat plate aperture with respect to a plane defined by said main plate portion;
- and
- an elongate pin member spaced from said plane defined by said main plate portion and fixedly secured to an upper portion of said main plate portion and structurally arranged for positioning within said elongate bore for limiting movement of said main plate portion toward said door handle neck portion.
A method of prohibiting opening of a door having an interior doorknob, an interior door handle neck portion and latch means, said door structurally arranged for closing against a doorjamb having an opening for receiving said door latch means, said method further comprising:
- affixing a strike plate securing portion having an elongate bore to said doorjamb independent of said door;
- positioning said strike plate securing portion with said elongate bore arranged in a substantially vertical axis adjacent said interior corner of said doorjamb;
- providing a main plate portion with an elongate pin member affixed thereto spaced from a plane defined by said main plate portion;
- and
- vertically lowering said main plate portion over said door handle neck portion and simultaneously positioning said elongate pin member fixedly secured to said main plate within said elongate bore and forming an interconnection between said main plate portion and said strike plate portion spaced from said plane defined by said main plate portion.
A door restraint mechanism for preventing the opening of a hinged door having an interior doorknob and an interior door handle neck portion, said hinged door positioned in a doorway having a doorjamb, said restraint mechanism comprising:
- a flat plate portion for fixedly mounting on said doorjamb;
- a strike plate securing portion fixedly secured to said flat plate portion independent of said hinged door and positioned generally adjacent an interior corner of said doorjamb and having an elongate aperture arranged with a substantially vertical axis;
- a main plate portion for positioning over said door handle neck portion and having a slot for receiving said door handle neck portion;
- an edge portion of said main plate portion forming said slot being structurally arranged for engagement with said door handle neck portion;
- said vertical axis of said elongate aperture spaced toward said doorjamb with respect to a plane defined by said main plate portion;
- and
- an elongate pin member spaced from said plane defined by said main plate portion and fixedly secured to an upper portion of said main plate portion and structurally arranged for positioning within said elongate aperture for limiting movement of said main plate portion toward said door handle neck portion.
Dependencies are inferred from the claim text.