US3600916A - Door lock with prism display - Google Patents

Door lock with prism display Download PDF

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Publication number
US3600916A
US3600916A US34447A US3600916DA US3600916A US 3600916 A US3600916 A US 3600916A US 34447 A US34447 A US 34447A US 3600916D A US3600916D A US 3600916DA US 3600916 A US3600916 A US 3600916A
Authority
US
United States
Prior art keywords
button
passage
indicia
reflecting surface
further characterized
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
Application number
US34447A
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English (en)
Inventor
Albert L Ruppert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oak Electro Netics Corp
Original Assignee
Oak Electro Netics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oak Electro Netics Corp filed Critical Oak Electro Netics Corp
Application granted granted Critical
Publication of US3600916A publication Critical patent/US3600916A/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
    • E05B41/00—Locks with visible indication as to whether the lock is locked or unlocked
    • 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
    • Y10S292/00—Closure fasteners
    • Y10S292/37—Push button operators
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/0969—Spring projected
    • Y10T292/097—Operating means
    • Y10T292/0977—Cam
    • Y10T292/0982—Bolt blocking or disabling means
    • Y10T292/0986—Discrete push or pull actuator
    • 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
    • Y10T70/8027—Condition indicators

Definitions

  • Cited UNITED STATES PATENTS 2,272,909 2/l942 Fantl ABSTRACT A doorknob assembly of the type wherein a button, generally centrally located in the handle, is effective to lock and unlock a lock mechanism
  • the button to lock and unlock the door moves within a passage, a portion of which may have a suitable indicia, for example a colored band, positioned on it.
  • the button includes a prism with a reflecting surface, object surface and image surface When the reflecting surface is positioned adjacent the indicia in the passage, there will be a display visible at the outer transparent area of the button, Thus, the condition of the lock mechanism is readily apparent to one using the doorknob.
  • the present invention relates to a doorknob assembly including means for indicating the condition of the door lock.
  • Another purpose is a doorknob assembly of the type described utilizing a reflective prism to indicate the condition of the door lock.
  • a doorknob assembly of the type described including a pushbutton movable in a central passage to unlock and lock the door lock mechanism, with the position of the pushbutton being readily visible through the use of colored indicia.
  • FIG. 1 is a side view of a doorknob assembly, with portions broken away, and
  • FIG. 2 is a side elevation from the left side of FIG. 1.
  • FIG. I a portion of a door is indicated generally at 10. There are handles 12 and [4 on each side of the door. There is a lock mechanism, not shown, between the handles and positioned within the door behind the plate l6. The door latch is indicated at 18 and will be held in either a locked or unlocked position, depending upon the condition of the lock mechanism.
  • the knob 14 has a central passage 20 defined by a cylindrical wall 22. Movable within the passage 20 is a button 24 attached to a shaft 26. As is conventional in button-type door locks, the shaft 26 will be attached to the lock mechanism. In one position of the button, the lock mechanism will be locked, whereas, in other position, as indicated in phantom lines, it will be unlocked.
  • the particular locking mechanism is not shown, although such locking mechanisms are old in the art.
  • US. Pat. No. 3,024,055 shows a pushbuttontype locking mechanism.
  • the Schlage Lock Co. of California makes a pushbutton type of doorknob lock.
  • the knob 14 has a concave surface 28 which terminates in an inwardly directed flange 30.
  • the flange 30 adjoins a wall portion 32 which in turn is attached to the passage wall 22 to complete the handle assembly.
  • Suitable indicia in the form of a colored band or the like indicated at 34 may be attached to the wall portion 32 adjacent the flange 30.
  • the flange 30 in effect positions indicia 34 properly within the passage 20.
  • the button 24 includes a transparent outer member 36 having an inwardly directed wall portion 38.
  • an inner opaque base member 40 which is attached to the shaft 26.
  • a reflecting surface 42 is formed on the base member 40 where it joins the outer transparent member 36.
  • the reflecting surface 42 may be suitably polished or plated with a reflecting medium, for example chrome or the like, to provide a high degree of light reflection.
  • the outer surface 44 may be termed an image surface and the wall portion 38 forms an object surface.
  • a prism construction, annular in configuration is formed by the combination of the object surface, reflecting surface and image surface.
  • the lock mechanism When the button 24 is in the out position, as indicated in phantom lines, the lock mechanism is unlocked, and the indicia 34 will no longer be adjacent the object surface.
  • the prism will not then reflect the color image to the front of the handle 14, but will reflect the color of the knob or handle which in most cases will be chrome or brass.
  • the outer member 36 of the button 24 is formed of a clear plastic and the base 40 may be formed of an opaque plastic.
  • the transparent outer surface will only display what is seen by the object surface, which is positioned adjacent the indicia when the button is in the in or locked position.
  • a color display for example red or green
  • the condition of a door lock is readily known.
  • the invention should not be limited to the use of one or two different bands of indicia, nor should it be limited to color as the indicia.
  • Various designs or written information may also be useful to form the display at the pushbutton.
  • a handle In a doorknob assembly, a handle, a passage within the handle, a shaft positioned in the passage and adapted to be attached to a lock mechanism, a button attached to said shaft, said button and shaft being reciprocal in said passage for locking and unlocking a lock mechanism,
  • said button including a reflecting surface and a transparent area in alignment with the reflecting surfaces, indicia positioned in the passage adjacent the path of movement of said button, said indicia being visible at said transparent area when said reflecting surface is in alignment with said indicia to provide an indication of the condition of the lock mechanism.
  • said button includes an outer member and an inner member, with the outer member being transparent and the inner member forming a reflecting surface.
  • the transparent outer member includes a wall portion extending inwardly within the passage beyond the reflecting surface, with said wall portion forming an object surface adapted to be positioned adjacent the indicia in one position of the button.

Landscapes

  • Lock And Its Accessories (AREA)
  • Switch Cases, Indication, And Locking (AREA)
US34447A 1970-05-04 1970-05-04 Door lock with prism display Expired - Lifetime US3600916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3444770A 1970-05-04 1970-05-04

Publications (1)

Publication Number Publication Date
US3600916A true US3600916A (en) 1971-08-24

Family

ID=21876475

Family Applications (1)

Application Number Title Priority Date Filing Date
US34447A Expired - Lifetime US3600916A (en) 1970-05-04 1970-05-04 Door lock with prism display

Country Status (3)

Country Link
US (1) US3600916A (enExample)
FR (1) FR2091128A5 (enExample)
GB (1) GB1286053A (enExample)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824819A (en) * 1973-04-16 1974-07-23 Schlage Lock Co Lock indicator
US3853340A (en) * 1972-03-20 1974-12-10 Daempa As Door lock
US3869901A (en) * 1973-04-16 1975-03-11 Schlage Lock Co Lock indicator shield
US5005884A (en) * 1989-02-07 1991-04-09 Ilco Unican Inc. Cylinder lock modified for use with a card reader unlocking mechanism
FR2775351A1 (fr) * 1998-02-24 1999-08-27 Peugeot Dispositif de determination de la presence ou de l'absence d'un bouchon en position correcte d'obturation d'une extremite de tubulure
US20050039504A1 (en) * 2003-08-20 2005-02-24 Master Lock Company Dead Locking Deadbolt
AT502024B1 (de) * 2006-03-02 2007-01-15 Evva Werke Doppelknaufzylinder
USD543087S1 (en) * 2004-08-25 2007-05-22 Newfrey Llc Doorknob
US20070266747A1 (en) * 2003-08-20 2007-11-22 Master Lock Company Llc Deadbolt lock
US20130257065A1 (en) * 2012-03-29 2013-10-03 B/E Aerospace, Inc. Cart bay door paddle latch
US9273491B2 (en) * 2007-06-14 2016-03-01 Chun Te Yu Lock having an indicatory lock core
US9328543B2 (en) 2012-11-29 2016-05-03 B/E Aerospace, Inc. Galley cart bay door latch
US20210140198A1 (en) * 2019-05-30 2021-05-13 Digilock Asia Ltd. Enclosure Latch System
US12172754B2 (en) 2022-09-27 2024-12-24 B/E Aerospace, Inc. Lavatory door lock indicator with improved visibility

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319287B (en) * 1996-11-11 2001-04-18 Cego Frameware Ltd Handle assemblies
US12239135B2 (en) * 2020-04-03 2025-03-04 Russell Kramer Copper microbe stopper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272909A (en) * 1940-10-17 1942-02-10 Elmer A Fantl Signal knob
US2650122A (en) * 1949-03-17 1953-08-25 American Hardware Corp Latch mechanism
US2813739A (en) * 1955-06-06 1957-11-19 American Hardware Corp Door lock
US3357546A (en) * 1966-07-21 1967-12-12 Data Packaging Corp Case for reels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272909A (en) * 1940-10-17 1942-02-10 Elmer A Fantl Signal knob
US2650122A (en) * 1949-03-17 1953-08-25 American Hardware Corp Latch mechanism
US2813739A (en) * 1955-06-06 1957-11-19 American Hardware Corp Door lock
US3357546A (en) * 1966-07-21 1967-12-12 Data Packaging Corp Case for reels

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853340A (en) * 1972-03-20 1974-12-10 Daempa As Door lock
US3869901A (en) * 1973-04-16 1975-03-11 Schlage Lock Co Lock indicator shield
US3824819A (en) * 1973-04-16 1974-07-23 Schlage Lock Co Lock indicator
US5005884A (en) * 1989-02-07 1991-04-09 Ilco Unican Inc. Cylinder lock modified for use with a card reader unlocking mechanism
FR2775351A1 (fr) * 1998-02-24 1999-08-27 Peugeot Dispositif de determination de la presence ou de l'absence d'un bouchon en position correcte d'obturation d'une extremite de tubulure
US20070266747A1 (en) * 2003-08-20 2007-11-22 Master Lock Company Llc Deadbolt lock
US20050039504A1 (en) * 2003-08-20 2005-02-24 Master Lock Company Dead Locking Deadbolt
US7963134B2 (en) 2003-08-20 2011-06-21 Master Lock Company Llc Deadbolt lock
US7207199B2 (en) * 2003-08-20 2007-04-24 Master Lock Company. Llc Dead locking deadbolt
USD543087S1 (en) * 2004-08-25 2007-05-22 Newfrey Llc Doorknob
AT502024B1 (de) * 2006-03-02 2007-01-15 Evva Werke Doppelknaufzylinder
US9273491B2 (en) * 2007-06-14 2016-03-01 Chun Te Yu Lock having an indicatory lock core
US20130257065A1 (en) * 2012-03-29 2013-10-03 B/E Aerospace, Inc. Cart bay door paddle latch
CN104508224A (zh) * 2012-03-29 2015-04-08 Be航天公司 推车舱门桨状门闩
JP2015517950A (ja) * 2012-03-29 2015-06-25 ビーイー・エアロスペース・インコーポレーテッド カートベイドアのパドル状ラッチ
US9328543B2 (en) 2012-11-29 2016-05-03 B/E Aerospace, Inc. Galley cart bay door latch
US20210140198A1 (en) * 2019-05-30 2021-05-13 Digilock Asia Ltd. Enclosure Latch System
US12172754B2 (en) 2022-09-27 2024-12-24 B/E Aerospace, Inc. Lavatory door lock indicator with improved visibility

Also Published As

Publication number Publication date
GB1286053A (en) 1972-08-16
DE2121157A1 (de) 1971-11-18
DE2121157B2 (de) 1975-12-04
FR2091128A5 (enExample) 1972-01-14

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