DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Delayed unlatching mechanism

Abstract

In various embodiments an apparatus is presented for securing a structure such as a door, window, hatch, or gate that moves between an open and a closed position relative to a fixed structure to provide or deny access to a compartment, a room, an outdoor area, or a facility. Various embodiments provide a delay in opening the closure of sufficient duration to frustrate a rapid activation that might be desired by a person who is attempting to pass through the closure for some illicit purpose. Typically, hydraulics are used to activate the apparatus and no electrical energy or electronic signals are employed. In one embodiment, a plurality of actuations of a hand lever operates a hydraulic pump that moves a locking bolt from a first position in which a locking bolt is engaged with a recess in the fixed structure (preventing opening of a gate) to a second position in which the locking bolt is disengaged from the recess to permit opening of the gate.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1179819
Patent Number(s):
9033376
Application Number:
13/752,704
Assignee:
Consolidated Nuclear Security, LLC (Reston, VA)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E05 - LOCKS E05B - LOCKS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
AC05-00OR22800
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 99 GENERAL AND MISCELLANEOUS; 42 ENGINEERING

Citation Formats

Bzorgi, Fariborz M. Delayed unlatching mechanism. United States: N. p., 2015. Web.
Bzorgi, Fariborz M. Delayed unlatching mechanism. United States.
Bzorgi, Fariborz M. Tue . "Delayed unlatching mechanism". United States. https://www.osti.gov/servlets/purl/1179819.
@article{osti_1179819,
title = {Delayed unlatching mechanism},
author = {Bzorgi, Fariborz M.},
abstractNote = {In various embodiments an apparatus is presented for securing a structure such as a door, window, hatch, or gate that moves between an open and a closed position relative to a fixed structure to provide or deny access to a compartment, a room, an outdoor area, or a facility. Various embodiments provide a delay in opening the closure of sufficient duration to frustrate a rapid activation that might be desired by a person who is attempting to pass through the closure for some illicit purpose. Typically, hydraulics are used to activate the apparatus and no electrical energy or electronic signals are employed. In one embodiment, a plurality of actuations of a hand lever operates a hydraulic pump that moves a locking bolt from a first position in which a locking bolt is engaged with a recess in the fixed structure (preventing opening of a gate) to a second position in which the locking bolt is disengaged from the recess to permit opening of the gate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {5}
}

Works referenced in this record:

Locking device for shift mechanism of an automotive power transmission system
patent, May 1976


Closure lock with inflatable bladder
patent, February 1978


Apparatus for delaying opening of doors
patent, October 1982


Lock assembly for a tiltable truck cab
patent, November 1983


Magnetic door lock with time delay option
patent, November 1987


Magnetic door lock with time delay option
patent, November 1987


Door closure delay device
patent, January 1992


Quick activating pressure vessel closure
patent, March 1994


Adjustable springs for pressure vessel closure
patent, March 1994


Lock mechanism
patent, April 1998


Releasable trailer door lock
patent, March 2009


Releasable trailer door lock
patent, June 2010


Delayed egress exit device
patent, November 2010