US3641793A - Magnetic pin tumbler lock - Google Patents

Magnetic pin tumbler lock Download PDF

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Publication number
US3641793A
US3641793A US886895A US3641793DA US3641793A US 3641793 A US3641793 A US 3641793A US 886895 A US886895 A US 886895A US 3641793D A US3641793D A US 3641793DA US 3641793 A US3641793 A US 3641793A
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US
United States
Prior art keywords
pin
tumbler
tumblers
lock according
parts
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
US886895A
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English (en)
Inventor
Christiaan Johannes Van Dalen
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.)
Nederlanden Staat
Original Assignee
Nederlanden Staat
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Filing date
Publication date
Application filed by Nederlanden Staat filed Critical Nederlanden Staat
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Publication of US3641793A publication Critical patent/US3641793A/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
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
    • E05B47/0044—Cylinder locks with magnetic tumblers
    • 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
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7057—Permanent magnet
    • 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
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7667—Operating elements, parts and adjuncts
    • Y10T70/7689—Tumblers
    • Y10T70/7701—Pin

Definitions

  • the [51] magnetic key means is employed for attracting, repelling, or [58] Field otSem-ch ..70/276,413, 378, 364, 352 not aff ing a h f h ler h gh i magnetizable means for placing each of the tumblers into its unlocking posi- 5 References Cited tion.
  • each one of the pin tumblers in the lock of this invention comprises, in one of the locks two relatively movable parts, a tumbler pin which may be any one of three different lengths and a magnetizable material which may comprise a separate magnet located on the tumbler pin or the whole pin may comprise magnetizable material.
  • a separate supplementary tumbler pin which cooperates with the first tumbler pin in the first part and is pressed against the first pin by means of a spring which is weaker than any spring means that would be employed in the first part.
  • Usually there is a stronger spring means in the first part which urges the first tumbler pin and/or the magnetizable material or magnet associated therewith towards a predetermined position.
  • This stronger spring means is either unaffected by the repelling force of a magnetic key which only moves its tumbler pin away, or no magnetic force at all placed in alignment with that particular tumbler which moves nothing; or this stronger spring is compressed and its tumbler pin is attracted by the attracting force of a magnet in the key.
  • each pin tumbler can be moved into any one of three different positions, only one of which positions being its unlocked position, in which no tumbler pins project through the joint between the aligned apertures in the two relatively movable parts.
  • the unlocking position is when no magnet in the key is associated therewith.
  • any pin may be placed in any one of three different positions and any pin also may have any one of the three different lengths, a large variety of combinations may be set up, with a larger variety occurring with a large number of tumbler pins.
  • the magnet associated with the tumbler pin is only either attracted or repelled; or a magnetizable material may be used for the tumbler pin so that either the north or the south pole of the magnet in the key will move the pin or attract it from one of its two positions to the other.
  • FIGS. 3a, 3b and 3c illustrate the use of the short tumbler aFIG. 3b shows the unlocking position, whereas FIGS. 3a and 3c show different positions;
  • FIGS. 4a and 4b disclose another embodiment of this invention wherein one tumbler pin is made of a magnetizable material and the tumbler is only movable into two different positions;
  • FIGS. 50 and 5b disclose still another embodiment of this invention wherein only one spring means is employed in the first lock part for urging only one tumbler pin, which pin also has only two different positions;
  • FIGS. 60 and 6b disclose a still further embodiment in which the tumbler pins also have only two different positions and only one spring is employed, but with two aligned tumbler pins and the spring being in the second part with the second or supplementary tumbler pin.
  • FIGS. la, lb, and 1c illustrate the use of the medium-sized locking tumbler a;
  • FIG. la shows the unlocking position, whereas different locking positions are shown in FIGS. Ib and 1c;
  • FIGS. 2a, 2b, and 2c illustrate the use of the long locking tumbler a;
  • FIG. 2b shows the unlocking position, whereas FIGS. 2a and 20 show different locking positions;
  • A-fixed part of the lock having a two stepped or doubleshouldered aperture for a tumbler pin.
  • FIGS. 1a through 30 Three types of pin-tumblers a, a, and a" are used in these FIGS. 1a through 30, namely: the long type (FIGS. 2), the medium-sized type (FIGS. 1), and the short type (FIGS. 3).
  • the three different lengths of pin-tumbler a, a and a" determine the character of the lock unit.
  • FIG. 1a the springs fix the locking magnet V in the middle one of three possible positions.
  • the pin of the headed tumbler pin a is just long enough so that relatively movable parts A and B can move freely with respect to each other.
  • a key magnets placed opposite the locking unit, as shown in FIGS. 1b and 1c will lock the parts A and B with respect to each other, regardless of the polarity of the key magnet.
  • This locking is effected either by the headed pin a of the tumbler (FIG. lb) or by the supplementary tumbler pin b (FIG. 10). Consequently, the key must not contain a magnet at the key position corresponding to a locking unit of this type if the parts A and B are to be relatively moved.
  • the pin of the headed tumbler a is so long that part A can only be unlocked with respect to part B, if the locking magnet 2 is attracted as shown in FIG. 2b. If the locking magnet V is repelled or if there is no key magnets at the corresponding place in the key, the headed tumbler-pin a will lock part A with respect to part B.
  • the pin of the headed tumbler a" is so short that part A can only be unlocked with respect to part B, if the locking magnet 2 is repelled as shown in FIG. 3b. If the locking magnet V is attracted (see FIG. 3c), or if there is no key magnets at the corresponding place in the key (see FIG. 3a) the supplementary pin b will lock part A with respect to part B.
  • the upper spring v1 is enclosed in a box-shaped space having a loose bottom d, so that its normal position is fixed against the upper shoulder in the aperture in part A. Further in the embodiment shown, the pressure of the spring v1 must be larger than that of the spring v2.
  • a tumbler lock for preventing the relative movement between two adjacent parts, comprising:
  • magnetic key means having separate magnets corresponding to each of said pin means for moving all of said pin means into their unlocking positions.
  • each of said tumblers comprise a pair of pins, one in each of said parts, and wherein said unlocking position is the position in which the joint between said pair of tumbler pins is aligned with the joint between said two parts.
  • a lock according to claim 2 wherein said spring means comprises separate springs in each part urging each of said two tumbler pins toward each other, and one of said spring means is stronger than the other.
  • said key means comprises magnets corresponding with at least some of the positions of the tumbler pins, which magnets have both north and south poles and are positioned in said key means either opposing or attracting said magnetizable means associated with each tumbler pin.
  • a tumbler lock for preventing the relative movement between two adjacent parts comprising:
  • magnetic key means having separate magnets corresponding to said tumblers for moving said tumblers into their unlocking positions, wherein said unlocking position is the position in which the joint between said two pins is aligned with the joint between said two parts.
  • a lock according to claim 12 wherein said spring means comprises separate springs in each part urging each of said two pins toward each other, and one of said spring means being stronger than the other.
  • said key means comprises magnets corresponding with at least some of the positions of the tumbler pins, which magnets are positioned in said key means either opposing or attracting said permanent magnets associated with each tumbler.

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  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Lock And Its Accessories (AREA)
US886895A 1968-12-23 1969-12-22 Magnetic pin tumbler lock Expired - Lifetime US3641793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL686818494A NL145922B (nl) 1968-12-23 1968-12-23 Magnetisch bediend slot.

Publications (1)

Publication Number Publication Date
US3641793A true US3641793A (en) 1972-02-15

Family

ID=19805472

Family Applications (1)

Application Number Title Priority Date Filing Date
US886895A Expired - Lifetime US3641793A (en) 1968-12-23 1969-12-22 Magnetic pin tumbler lock

Country Status (7)

Country Link
US (1) US3641793A (nl)
JP (1) JPS4837438B1 (nl)
CH (1) CH522808A (nl)
DE (1) DE1963603A1 (nl)
GB (1) GB1278470A (nl)
NL (1) NL145922B (nl)
SE (1) SE360138B (nl)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848812A (en) * 1988-04-08 1989-07-18 Slaughter Steven J Concealed safety lock
US4919464A (en) * 1985-11-07 1990-04-24 Richards Roger C Magnetically operated latch
US20050133526A1 (en) * 2003-12-23 2005-06-23 Lewis Richard P. Mounting structure for viscous liquid dispenser
US20090173121A1 (en) * 2008-01-03 2009-07-09 Ben Cheng Bump Proof Locks
US20100045054A1 (en) * 2006-06-02 2010-02-25 Optosolutions Sweden Ab Locking Device
CN102478218A (zh) * 2010-11-29 2012-05-30 中强光电股份有限公司 装置外壳
US10407944B2 (en) * 2016-06-03 2019-09-10 Geerpres, Inc. Magnetic lock and utility carts including same
US20220064992A1 (en) * 2020-09-02 2022-03-03 Guidecraft, Inc. Magnetic latch and methods of use

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193435U (nl) * 1974-11-12 1976-07-27
JPS53112834U (nl) * 1977-02-17 1978-09-08
JPS5613636U (nl) * 1979-07-11 1981-02-05
JPS57136017A (en) * 1982-01-11 1982-08-21 Yamahisa Obara Method for stretching net at exhaust cylinder for chimney
CN110056256B (zh) * 2019-05-06 2024-03-29 厦门美科安防科技股份有限公司 磁性雕刻锁

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1172203A (en) * 1914-06-19 1916-02-15 Albert B Tenney Magnetic lock.
DE1036702B (de) * 1952-04-05 1958-08-14 Willibald Kamm Dipl Ing Schloss mit magnetisch beeinflussbarer, unter Wirkung einer Feder in Schliesslage gehaltener Zuhaltung
US3518855A (en) * 1966-08-26 1970-07-07 Kyoyasu Wake Magnetically actuated tumbler lock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1172203A (en) * 1914-06-19 1916-02-15 Albert B Tenney Magnetic lock.
DE1036702B (de) * 1952-04-05 1958-08-14 Willibald Kamm Dipl Ing Schloss mit magnetisch beeinflussbarer, unter Wirkung einer Feder in Schliesslage gehaltener Zuhaltung
US3518855A (en) * 1966-08-26 1970-07-07 Kyoyasu Wake Magnetically actuated tumbler lock

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919464A (en) * 1985-11-07 1990-04-24 Richards Roger C Magnetically operated latch
US4848812A (en) * 1988-04-08 1989-07-18 Slaughter Steven J Concealed safety lock
US20050133526A1 (en) * 2003-12-23 2005-06-23 Lewis Richard P. Mounting structure for viscous liquid dispenser
US20100045054A1 (en) * 2006-06-02 2010-02-25 Optosolutions Sweden Ab Locking Device
US8602465B2 (en) 2006-06-02 2013-12-10 Optosolutions Sweden Ab Locking device
US20090173121A1 (en) * 2008-01-03 2009-07-09 Ben Cheng Bump Proof Locks
CN102478218A (zh) * 2010-11-29 2012-05-30 中强光电股份有限公司 装置外壳
CN102478218B (zh) * 2010-11-29 2013-07-10 中强光电股份有限公司 装置外壳
US8523396B2 (en) 2010-11-29 2013-09-03 Coretronic Corporation Device housing
US10407944B2 (en) * 2016-06-03 2019-09-10 Geerpres, Inc. Magnetic lock and utility carts including same
US20220064992A1 (en) * 2020-09-02 2022-03-03 Guidecraft, Inc. Magnetic latch and methods of use

Also Published As

Publication number Publication date
NL145922B (nl) 1975-05-15
CH522808A (de) 1972-05-15
SE360138B (nl) 1973-09-17
JPS4837438B1 (nl) 1973-11-10
NL6818494A (nl) 1970-06-25
DE1963603A1 (de) 1970-07-09
GB1278470A (en) 1972-06-21

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