US3742739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic lock
Assignee: Orco Products
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Filing: 1972-07-31
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Granted: 1973-07-03
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Expires: 1992-07-31
Abstract
Abstract A plurality of tumblers are rotatably mounted in the main body portion of a lock, these tumblers having keyways formed therein. Each of the tumblers has a magnetic pole piece imbedded therein, these pole pieces being located at a predetermined angular position about the rotation axis of the tumblers relative to the keyways, the tumblers having common rotation axes. A bar member is mounted adjacent to the tumblers, this bar member having a finger portion extending therefrom which is adapted to fit into the tumbler keyways. A magnetic key is utilized to open the lock, this key having magnetic pole pieces imbedded therein of opposite polarity to corresponding pole pieces in the tumblers. The key pole pieces are thereby drawn opposite corresponding tumbler pole pieces to rotate the tumblers to bring the keyways thereof into alignment with the finger portions of the bar member. This permits an actuator arm to drive the latch for the lock so as to open the lock.
Inventors
- 👤 H Hickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:56
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/0038; E05B47/0042; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/446; Y10T70/452; Y10T70/461; Y10T70/70; Y10T70/7051; Y10T70/7057
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
248 words
A magnetic lock device comprising: a main body portion, a plurality of tumblers mounted in said body portion for rotation about a common axis, said tumblers having axial keyways formed in their peripheries, said tumblers further each having a magnetic pole piece installed therein at a predetermined angular position relative to the keyways about the common rotation axis, a bar member having an elongated finger portion extending therefrom, said finger portion being adapted to engage the keyways of said tumblers, an actuator arm mounted in said main body portion, means interconnecting said actuator arm and said bar member, a shackle member having one end portion thereof mounted in said main body portion for slidable motion relative thereto, a latching device mounted in said main body portion, said latching device being adapted to engage the other end portion of said shackle member, manually operable drive means for driving said actuator arm against said latching device, and key means having magnetic pole pieces installed therein for each of the pole pieces of said tumblers whereby when said key means is placed in position along the main body portion of said lock device, the pole pieces of said key means attracts associated pole pieces of said tumblers to rotate said tumblers until the keyways thereof are opposite said elongated finger portion of said bar member, thereby enabling said finger portion to enter said keyways when said manually operable means is actuated to permit said actuator arm to actuate said latching device.
Claim 2
Dependent Claim
248 words
A magnetic lock device comprising: a main body portion, a plurality of tumblers mounted in said body portion for rotation about a common axis, said tumblers having axial keyways formed in their peripheries, said tumblers further each having a magnetic pole piece installed therein at a predetermined angular position relative to the keyways about the common rotation axis, a bar member having an elongated finger portion extending therefrom, said finger portion being adapted to engage the keyways of said tumblers, an actuator arm mounted in said main body portion, means interconnecting said actuator arm and said bar member, a shackle member having one end portion thereof mounted in said main body portion for slidable motion relative thereto, a latching device mounted in said main body portion, said latching device being adapted to engage the other end portion of said shackle member, manually operable drive means for driving said actuator arm against said latching device, and key means having magnetic pole pieces installed therein for each of the pole pieces of said tumblers whereby when said key means is placed in position along the main body portion of said lock device, the pole pieces of said key means attracts associated pole pieces of said tumblers to rotate said tumblers until the keyways thereof are opposite said elongated finger portion of said bar member, thereby enabling said finger portion to enter said keyways when said manually operable means is actuated to permit said actuator arm to actuate said latching device.
Claim 3
Dependent Claim
83 words
The device of claim 1 and additionally including a dead bolt device positioned opposite said manually operable drive means, said dead bolt device having a pole piece therein and an aperture for receiving the end portion of said manually operable drive means, said key means having a pole piece therein for aligning the pole piece on said dead bolt to align the aperture thereof with the aforementioned end portion of said manually operable drive means to permit said drive means to be driven.
Claim 4
Dependent Claim
42 words
The device of claim 1 wherein said means for interconnecting said bar member and said actuator arm comprises a shaft fixedly attached at one end thereof to said bar member and pivotally connected at the other end thereof to said actuator arm.
Claim 5
Dependent Claim
22 words
The device of claim 1 wherein said bar member is substantially T-shaped, the finger portion thereof forming the base of the T.
Claim 6
Dependent Claim
50 words
The device of claim 1 wherein said manual drive means comprises a plunger having a button portion thereof extending to tHe outside of said main body portion, and a shaft portion extending into said main body portion, said shaft portion having a tab extending therefrom which engages the actuator arm.
Claim 7
Dependent Claim
215 words
In a magnetic lock having a main body portion and a shackle member mounted in said body portion for latching engagement therewith, latch means mounted in said body portion for latching one end portion of said shackle member, actuator means for actuating said latch means, a plurality of tumblers mounted in said body portion for rotation about a common axis, said tumblers having axial keyways formed in their peripheries, said tumblers further each having a magnetic pole piece installed therein at a predetermined angular position about said common axis relative to the keyways, a bar member having finger means extending therefrom for engaging the keyways of said tumblers, said actuator means being connected to said bar member, means for manually driving said actuator means, and key means having magnetic pole pieces installed therein for each of the pole pieces of said tumblers, whereby when said key means is placed along the body portion in a predetermined position, the pole pieces of the key means each attracts an associated pole piece of the tumblers so as to rotate the tumblers until the keyways thereof are opposite the finger means of the bar member, said finger means entering said keyways when said manual driving means is actuated, to permit the actuator means to actuate the latch means.
Claim 8
Dependent Claim
215 words
In a magnetic lock having a main body portion and a shackle member mounted in said body portion for latching engagement therewith, latch means mounted in said body portion for latching one end portion of said shackle member, actuator means for actuating said latch means, a plurality of tumblers mounted in said body portion for rotation about a common axis, said tumblers having axial keyways formed in their peripheries, said tumblers further each having a magnetic pole piece installed therein at a predetermined angular position about said common axis relative to the keyways, a bar member having finger means extending therefrom for engaging the keyways of said tumblers, said actuator means being connected to said bar member, means for manually driving said actuator means, and key means having magnetic pole pieces installed therein for each of the pole pieces of said tumblers, whereby when said key means is placed along the body portion in a predetermined position, the pole pieces of the key means each attracts an associated pole piece of the tumblers so as to rotate the tumblers until the keyways thereof are opposite the finger means of the bar member, said finger means entering said keyways when said manual driving means is actuated, to permit the actuator means to actuate the latch means.
Claim 9
Dependent Claim
85 words
The device of claim 6 and additionally including a dead bolt device positioned opposite said means for driving the actuator, said dead bolt device having a pole piece therein and an aperture for receiving the end portion of said means for driving the actuator, said key means having a pole piece therein for aligning the pole piece on said dead bolt to align the aperture thereof with the aforementioned end portion of said manually operable drive means to permit said drive means to be driven.
Claim 10
Dependent Claim
22 words
The device of claim 7 wherein said bar member is substantially T-shaped, the finger means thereof forming the base of the T.
Claim 11
Dependent Claim
54 words
The device of claim 6 wherein said means for manually driving the actuator means comprises a plunger having a button portion thereof extending to the outside of said main body portion, and a shaft portion extending into said main body portion, said shaft portion having a tab extending therefrom which engages the actuator means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |