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Locking cover for dead bolt actuators

  • US 5,865,050 A
  • Filed: 10/15/1996
  • Issued: 02/02/1999
  • Est. Priority Date: 10/15/1996
  • Status: Expired due to Fees
First Claim
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1. A locking cover for a dead bolt lock assembly mounted inside a through opening cooperatively positioned adjacent to the edge of a closure member having external and interior walls and said dead bolt lock assembly includes an actuating shaft member that is connected to, and driven by, a key cylinder assembly that causes it to selectively rotate thereby causing a dead bolt member to protrude and retract from an opening, and said actuating shaft member, having a rectangular cross-section, being also directly actionable, comprising:

  • A) an annular base plate assembly having a bottom wall adapted to be mounted to said interior wall and peripherally over said through opening and said annular base plate assembly includes a cylindrical case member extending perpendicular to said bottom wall; and

    B) cover means having an outer wall with a peripheral skirt and a centrally disposed tubular cylinder coaxially aligned with said skirt, and said tubular cylinder including a keyed stopper assembly mounted therein at a position that permits said actuating shaft member to go longitudinally into said keyed stopper assembly, and said keyed stopper assembly including two opposite stop members that extend radially inwardly from said tubular cylinder and separated a sufficient distance to permit said actuating shaft member thereinto so that said cover means is selectively rotated one quarter of a turn without causing said activating shaft member to rotate and the next quarter of a turn causes said dead bolt member to either protrude out or collect itself within said opening, and said cover means further includes an off centered pin mounted on an interior surface of said outer wall and said pin being cooperatively receivable within a plurality of holes in said base plate assembly to prevent said cover means from rotating when said cover means is brought against said annular base plate assembly.

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