Pre-hung door and casing retention device
OwnerB. Jack Smithinventor
Life of this patent
Estimating the term…
Abstract
A pre-hung door and casing retention device and a method of latching and unlatching a pre-hung door and casing. The door includes a tubular body configured to be receivable in a door lock cylinder opening and a door latch opening. A male portion has an extending post with a plurality of teeth extending from at least one side of said post, the male portion receivable in a latch bolt opening and the door latch opening. An elongated engagement portion has a first end fastened in the tubular body, an opposed second end extending from the tubular portion and a protrusion engaging teeth on the male portion when inserted into the tubular portion and wherein the protrusion is disengaged from the teeth when a withdrawal force is exerted on the engagement portion.
Claims10
A pre-hung door and casing retention device, wherein said door has a door lock cylinder opening and a door latch opening and wherein said casing has a latch bolt opening, which retention device comprises:
- a tubular body configured to be receivable in said door lock cylinder opening and said door latch opening;
- a male portion having an extending post with a plurality of teeth extending from at least one side of said post, said male portion receivable in said latch bolt opening and said door latch opening;
- an elongated engagement portion having a first end fastened in said tubular body, an opposed second end extending from said tubular body, and a protrusion between said first end and said second end, wherein said protrusion engages said teeth on said male portion in a locked position when said post of said male portion is inserted in said tubular portion and wherein said protrusion is disengaged from said teeth on said male portion when a withdrawal force is exerted on said engagement portion,
- wherein said elongated protrusion comprises an angular tooth having a pair of sides which join at a tip configured so that said tip engages said teeth on said male portion, and
- wherein said pair of sides of said angular tooth join each other at an angle between 25 and 35 degrees when in said locked position, and
- wherein said angle increases when said withdrawal force is exerted on said engagement portion.
A method of latching and unlatching a pre-hung door and casing, wherein said door has a door lock cylinder opening and a door latch opening and wherein said casing has a latch bolt opening, which method comprises:
- inserting a tubular body and an elongated engagement portion into said door lock cylinder opening and said door latch opening, wherein said elongated engagement portion includes a first end fastened in said tubular body, an opposed second end, and a protrusion between said first end and said second end;
- inserting a male portion having an extending post with a plurality of teeth extending from at least one side of said post into said latch bolt opening and said door latch opening;
- and
- engaging said teeth on said male portion with said protrusion on said engagement portion to latch said pre-hung door and casing;
- and
- disengaging said teeth of said male portion with said protrusion by exerting a withdrawal force on said elongated engagement portion,
- wherein said protrusion comprises an angular tooth having a pair of sides which join at a tip configured so that said tip engages said teeth,
- wherein said pair of sides of said angular tooth join each other at an angle of between 25 and 35 degrees when in said latched position, and
- wherein said angle increases when said withdrawal force is exerted on said engagement portion.
Dependencies are inferred from the claim text.