US3660996A - Locking device for a doorknob lock - Google Patents

Locking device for a doorknob lock Download PDF

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Publication number
US3660996A
US3660996A US3660996DA US3660996A US 3660996 A US3660996 A US 3660996A US 3660996D A US3660996D A US 3660996DA US 3660996 A US3660996 A US 3660996A
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US
United States
Prior art keywords
cover
doorknob
base
door
knob
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Albert Syvertson
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Individual
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Individual
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Publication of US3660996A publication Critical patent/US3660996A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00—Devices preventing the key or the handle or both from being used
    • E05B13/001—Covers preventing access to handles or keys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S70/00—Locks
    • Y10S70/58—Handle guard
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/5757—Handle, handwheel or knob
    • Y10T70/5765—Rotary or swinging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/80—Parts, attachments, accessories and adjuncts

Definitions

  • a locking device for a doorknob lock including a base. means for securing the base to a door. said base formed with an opening through which a doorknob extends, a cover. the cover having an access hole.
  • the invention relates to door lock security devices for preventing access to a doorknob and more particularly to a device for covering and locking a doorknob lock whereby the knob lock may not be operated although a person gains access to the room where the doorknob lock is located.
  • the device may be unlocked to allow unlocking of the doorknob lock and the device has an access hole to allow a locking of the doorknob although the device is locked upon the doorknob.
  • FIG. 1 is a perspective of a cover for door handle lock embodying the invention and shown in closed locked position on a door only a portion of which is shown.
  • FIG. 2 is a vertical sectional view through the cover shown in locked position.
  • the cover for doorknob look A includes the base which is secured to the door D by means of the screws 12.
  • the extension 14 is formed on the lower end of the base 10.
  • the base 10 is formed with the opening 16 through which the doorknob K is extended and within which the escutcheon late 18 is positioned when the base is secured upon the door.
  • the numeral 20 designates a cover which has a peripheral wall including the top wall 22, the spaced side walls 24 and 26, the bottom wall 28.
  • the front wall 30 is connected to the peripheral wall and is formed with the access hole 32.
  • the peripheral wall and the front wall form a cavity in which the knob is positioned.
  • the cover 20 is hingedly mounted on the base 10 by means of the hinge 34 secured to the inner edge of the top wall 22 and the base 10.
  • the cover 20 is of a vertical dimension such that it is positioned closely adjacent the extension 14 when in closed position upon the base 10 and over the knob K.
  • the extension 14 has mounted therein the conventional key lock 36 with key 37 and the bolt 38. When in locked position the bolt extends into the slot 40 formed in the underside of the bottom wall 30 thereby locking the cover upon the doorknob whereby access to the knob is prevented.
  • the screws 12 aligned so that the heads of the same are concealed when the cover is upon the base.
  • the knob K has the locking button 42 in alignment with which is the access hole.
  • the access hole 32 allows the locking button of the doorknob to be depressed and locked when the cover 20 is in locked position.
  • a locking device for a doorknob lock comprising:
  • a flat base b. means for securing the base to a door 0. said base having an opening through which a doorknob extends,
  • a cover including a peripheral wall and a front wall
  • hinge means mounting said cover on said base for displacement relative to the doorknob to allow access to the knob
  • means for locking the cover in a secure position upon the base and enclosing the doorknob of a door including an extension formed on the base which extends beyond the cover and a lock mounted on the extension and having a bolt for engagement with a portion of said cover,
  • said cover formed with a hole in alignment with the doorknob when the cover is in enclosing position upon the knob for limited access to the knob.

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  • Lock And Its Accessories (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

A locking device for a doorknob lock including a base, means for securing the base to a door, said base formed with an opening through which a doorknob extends, a cover, the cover having an access hole, means mounting said cover on the base for displacement relative to the doorknob to allow access to the doorknob and means for locking the cover in a secure position upon the base and enclosing the doorknob of a door.

Description

United States Patent Syvertson [54] LOCKING DEVICE FOR A DOORKNOB LOCK [72] Inventor: Albert Syvertson, 3112 Tenth Avenue [52] U.S. Cl. ..70/209. 70/431. 70/DlG. 58 [51] IntrCl ..E05b 13/00 [58] Field ofSearch ..70/209,211.212.416.D1G.58,
[ 51 May 9,1972
3.414.306 12/1968 Bernstein ..292/1 1.884.992 10/1932 Grabbe ..70/232 X FOREIGN PATENTS OR APPLICATIONS 783.438 9/1957 Great Britain ..70/l6l 41 ,273 12/1929 Denmark ..70/232 Primary Eraminer-Albert G. Craig. Jr. Attorney-Wicks and Nemer [5 7] ABSTRACT A locking device for a doorknob lock including a base. means for securing the base to a door. said base formed with an opening through which a doorknob extends, a cover. the cover having an access hole. means mounting said cover on the base for [56] References cued displacement relative to the doorknob to allow access to the UNITED STATES PATENTS doorknob and means for locking the cover in a secure position upon the base and enclosing the doorknob of a door. 1,328,109 1/1920 Whitlock ..70/159 X 2.883350 4/1959 Falck ..70/431 1Clalm, 2 Drawing Figures v l i 'ii h xii n lmfl 'nil lint. 3TA
PATENTEU MM 9 I972 ATTOQ/VEVS SUMMARY OF THE lNVENTlON The invention relates to door lock security devices for preventing access to a doorknob and more particularly to a device for covering and locking a doorknob lock whereby the knob lock may not be operated although a person gains access to the room where the doorknob lock is located. The device may be unlocked to allow unlocking of the doorknob lock and the device has an access hole to allow a locking of the doorknob although the device is locked upon the doorknob.
In the drawings forming part of this application:
FIG. 1 is a perspective of a cover for door handle lock embodying the invention and shown in closed locked position on a door only a portion of which is shown.
FIG. 2 is a vertical sectional view through the cover shown in locked position.
Referring to the drawings in detail, the cover for doorknob look A includes the base which is secured to the door D by means of the screws 12. Formed on the lower end of the base 10 is the extension 14 which extends outwardly from the base 10. The base 10 is formed with the opening 16 through which the doorknob K is extended and within which the escutcheon late 18 is positioned when the base is secured upon the door.
The numeral 20 designates a cover which has a peripheral wall including the top wall 22, the spaced side walls 24 and 26, the bottom wall 28. The front wall 30 is connected to the peripheral wall and is formed with the access hole 32. The peripheral wall and the front wall form a cavity in which the knob is positioned. Further, the cover 20 is hingedly mounted on the base 10 by means of the hinge 34 secured to the inner edge of the top wall 22 and the base 10.
The cover 20 is of a vertical dimension such that it is positioned closely adjacent the extension 14 when in closed position upon the base 10 and over the knob K. The extension 14 has mounted therein the conventional key lock 36 with key 37 and the bolt 38. When in locked position the bolt extends into the slot 40 formed in the underside of the bottom wall 30 thereby locking the cover upon the doorknob whereby access to the knob is prevented. The screws 12 aligned so that the heads of the same are concealed when the cover is upon the base. The knob K has the locking button 42 in alignment with which is the access hole.
With the cover member 20 in locked position upon the knob K, the door D cannot be opened by an intruder breaking the glass of the door and operating the knob. The access hole 32 allows the locking button of the doorknob to be depressed and locked when the cover 20 is in locked position.
To allow the door to be unlocked the cover 10 must be hingedly raised after unlocking the lock 14.
I claim:
1. A locking device for a doorknob lock comprising:
a. a flat base b. means for securing the base to a door 0. said base having an opening through which a doorknob extends,
d. a cover including a peripheral wall and a front wall,
e. hinge means mounting said cover on said base for displacement relative to the doorknob to allow access to the knob,
f. means for locking the cover in a secure position upon the base and enclosing the doorknob of a door including an extension formed on the base which extends beyond the cover and a lock mounted on the extension and having a bolt for engagement with a portion of said cover,
g. said cover formed with a hole in alignment with the doorknob when the cover is in enclosing position upon the knob for limited access to the knob.
1! i l I i

Claims (1)

1. A locking device for a doorknob lock comprising: A. A FLAT BASE B. MEANS FOR SECURING THE BASE TO A DOOR C. SAID BASE HAVING AN OPENING THROUGH WHICH A DOORKNOB EXTENDS, D. A COVER INCLUDING A PERIPHERAL WALL AND A FRONT WALL, E. HINGE MEANS MOUNTING SAID COVER ON SAID BASE FOR DISPLACEMENT RELATIVE TO THE DOORKNOB TO ALLOW ACCESS TO THE KNOB, F. MEANS FOR LOCKING THE COVER IN A SECURE POSITION UPON THE BASE AND ENCLOSING THE DOORKNOB OF A DOOR INCLUDING AN EXTENSION FORMED ON THE BASE WHICH EXTENDS BEYOND THE COVER AND A LOCK MOUNTED ON THE EXTENSION AND HAVING A BOLT FOR ENGAGEMENT WITH A PORTION OF SAID COVER, G. SAID COVER FORMED WITH A HOLE IN ALIGNMENT WITH THE DOORKNOB WHEN THE COVER IS IN ENCLOSING POSITION UPON THE KNOB FOR LIMITED ACCESS TO THE KNOB.
US3660996D 1970-07-29 1970-07-29 Locking device for a doorknob lock Expired - Lifetime US3660996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5927870A 1970-07-29 1970-07-29

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US3660996A true US3660996A (en) 1972-05-09

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US3660996D Expired - Lifetime US3660996A (en) 1970-07-29 1970-07-29 Locking device for a doorknob lock

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888096A (en) * 1973-06-04 1975-06-10 Steven J Huss Lock-up housing for door lock
US4401247A (en) * 1979-06-27 1983-08-30 Heinrich Wunder Gmbh Co. Kg Fastening device for supporting brackets or luggage racks for automotive vehicles
US4413492A (en) * 1981-10-01 1983-11-08 Strange R L Deadbolt lock protector
US4503692A (en) * 1982-08-23 1985-03-12 Grint Dean R Protective doorknob encasement device
US4632440A (en) * 1983-12-19 1986-12-30 Societe Nationale Industrielle Et Aerospatiale Device for locking a mobile panel with double security
WO1989002019A1 (en) * 1987-09-03 1989-03-09 John James Zammit Lock combination
US5047599A (en) * 1990-03-23 1991-09-10 Giolli Donald A Locking housing for a switch
US5201202A (en) * 1991-06-24 1993-04-13 Kam Hing K Door lock security device
EP1059405A1 (en) * 1999-06-08 2000-12-13 Mecelec Industries Lock and protective casing equipped with such a lock
US20050188732A1 (en) * 2004-02-27 2005-09-01 Kane John A. Entry protection system and apparatus
EP1927709A2 (en) * 2006-12-02 2008-06-04 Meik Müller Cover for an opening device
WO2011023997A1 (en) * 2009-08-25 2011-03-03 Bournemouth University Limited Device for preventing unauthorised operation of a door handle
FR2975087A1 (en) * 2011-05-10 2012-11-16 Richard Henau Locking case for locking lever of freight container, has lock fixed to base for locking cover on base when cover is in closed position in which lever of container is entirely housed between base and cover
US8534103B2 (en) * 2011-12-02 2013-09-17 Robert C. Brooks Method and apparatus for securing door mechanisms
US20140165668A1 (en) * 2012-12-19 2014-06-19 Solarlux Aluminium Systeme Gmbh Security device for a window handle or door handle
EP2332801B1 (en) * 2009-12-09 2016-11-09 Bombardier Transportation GmbH Emergency actuation device for a vehicle, in particular a rail vehicle
US9776452B1 (en) * 2015-05-29 2017-10-03 Charles Edward Washington Multi-purpose concealing apparatus
US20220162880A1 (en) * 2020-11-25 2022-05-26 Stanley Waxmundsky Insulated door lock assembly
USD957910S1 (en) 2020-10-09 2022-07-19 Meck Saxon Doorknob security cover

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328109A (en) * 1916-12-29 1920-01-13 Robert G Whitlock Lock for electric switches
US1884992A (en) * 1931-08-26 1932-10-25 Paul J Grabbe Rim lug nut lock
GB783438A (en) * 1954-11-10 1957-09-25 Thomas Leslie Gilson A safety device for use with locks and latches
US2883850A (en) * 1955-05-05 1959-04-28 Falck James Stanley Knob locking device
US3414306A (en) * 1965-07-12 1968-12-03 Albert A. Bernstein Door knob, lock and slide bolt protector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328109A (en) * 1916-12-29 1920-01-13 Robert G Whitlock Lock for electric switches
US1884992A (en) * 1931-08-26 1932-10-25 Paul J Grabbe Rim lug nut lock
GB783438A (en) * 1954-11-10 1957-09-25 Thomas Leslie Gilson A safety device for use with locks and latches
US2883850A (en) * 1955-05-05 1959-04-28 Falck James Stanley Knob locking device
US3414306A (en) * 1965-07-12 1968-12-03 Albert A. Bernstein Door knob, lock and slide bolt protector

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888096A (en) * 1973-06-04 1975-06-10 Steven J Huss Lock-up housing for door lock
US4401247A (en) * 1979-06-27 1983-08-30 Heinrich Wunder Gmbh Co. Kg Fastening device for supporting brackets or luggage racks for automotive vehicles
US4413492A (en) * 1981-10-01 1983-11-08 Strange R L Deadbolt lock protector
US4503692A (en) * 1982-08-23 1985-03-12 Grint Dean R Protective doorknob encasement device
US4632440A (en) * 1983-12-19 1986-12-30 Societe Nationale Industrielle Et Aerospatiale Device for locking a mobile panel with double security
WO1989002019A1 (en) * 1987-09-03 1989-03-09 John James Zammit Lock combination
AU605919B2 (en) * 1987-09-03 1991-01-24 John James Zammit Lock combination
US5047599A (en) * 1990-03-23 1991-09-10 Giolli Donald A Locking housing for a switch
US5201202A (en) * 1991-06-24 1993-04-13 Kam Hing K Door lock security device
EP1059405A1 (en) * 1999-06-08 2000-12-13 Mecelec Industries Lock and protective casing equipped with such a lock
FR2794790A1 (en) * 1999-06-08 2000-12-15 Mecelec Ind LOCK AND PROTECTIVE COVER EQUIPPED WITH SUCH A LOCK
US20050188732A1 (en) * 2004-02-27 2005-09-01 Kane John A. Entry protection system and apparatus
EP1927709A2 (en) * 2006-12-02 2008-06-04 Meik Müller Cover for an opening device
EP1927709A3 (en) * 2006-12-02 2010-03-24 Meik Müller Cover for an opening device
WO2011023997A1 (en) * 2009-08-25 2011-03-03 Bournemouth University Limited Device for preventing unauthorised operation of a door handle
EP2332801B1 (en) * 2009-12-09 2016-11-09 Bombardier Transportation GmbH Emergency actuation device for a vehicle, in particular a rail vehicle
FR2975087A1 (en) * 2011-05-10 2012-11-16 Richard Henau Locking case for locking lever of freight container, has lock fixed to base for locking cover on base when cover is in closed position in which lever of container is entirely housed between base and cover
US8534103B2 (en) * 2011-12-02 2013-09-17 Robert C. Brooks Method and apparatus for securing door mechanisms
US20140165668A1 (en) * 2012-12-19 2014-06-19 Solarlux Aluminium Systeme Gmbh Security device for a window handle or door handle
US8881561B2 (en) * 2012-12-19 2014-11-11 Solarlux Aluminium Systeme Gmbh Security device for a window handle or door handle
US9776452B1 (en) * 2015-05-29 2017-10-03 Charles Edward Washington Multi-purpose concealing apparatus
USD957910S1 (en) 2020-10-09 2022-07-19 Meck Saxon Doorknob security cover
US20220162880A1 (en) * 2020-11-25 2022-05-26 Stanley Waxmundsky Insulated door lock assembly
US11959303B2 (en) * 2020-11-25 2024-04-16 Stanley Waxmundsky Insulated door lock assembly

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