Conical shank anti-ligature releasable door lever

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8534723
APP PUB NO 20100126239A1
SERIAL NO

12590135

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A lever latch lock assembly including:

    a. a lock housing mounted in the door including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to the first axis, the spindle extending outward at each of the interior and exterior sides of the housing and terminating in opposite ends, and a transmission which converts rotation of the spindle to axial motion the lock bolt,b. a lever assembly attached to each of the spindle's ends and adapted to rotate the spindle, the lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having (i) a base of first diameter adapted to be situated closely adjacent one of the interior and exterior sides of the door and coaxial with the second axis,(ii) a top end having a top edge opposite the base, the top end having a smaller diameter than the first diameter, and(iii) a bore through which extends the spindle, and (2) a lever including (i) a hub part and(ii) an elongated handle part extending from one side of the escutcheon in a direction transverse of the second axis, the handle having a top part that extends as a smooth contiguous uninterrupted surface from the top of the hub.

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First Claim

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Patent Owner(s)

  • SECURITECH GROUP, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berger, Mark J New York, US 11 154

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 17, 2025
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