US3892111A
Expired / Lapsed
US
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Variable locking device
Assignee: G A O GES fur AUTOMATION
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Filing: 1974-01-04
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Granted: 1975-07-01
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Expires: 1994-01-04
Abstract
Abstract An adjustable locking system includes in combination (1) a key operable with a cam member of a tumbler cam including a shank stem having a longitudinal stem bore opening at one end and having a hand engagement portion adjacent the opposite end, a plurality of tumbler engaging rings, each having an engagement recess for engaging the tumblers, rotatably mounted on said stem, an opening in said stem underlying each of said rings, a cam movable in the bore of said stem for each ring, a locking member associated with said cam and located in said opening to engage and lock each associated ring, said cam being displaceable in the bore by engagement of the cam setting members between a position in which said cam engages and forces said locking member into engagement with said rings to prevent rotation thereof and a position in which said cam permits inward movement of said locking members in their associated openings out of engagement with said rings to permit their rotation; and (2) a lock for said key including a lock cylinder having a central keyway bore having at least one locking pin bore, a locking pin in said bore biased inwardly, a core socket having unlocking means actuable in one end part of said core socket to engage the bolt for unlocking, a settable test ring rotatable within the bore of said core socket and having a central keyway bore, said test ring and said core socket having alignable radial bores, at least one locking pin in said radial bores having means biasing said locking pin into said key way bore and in an interior biased position locking said core socket and test ring against rotation when engaged in fixed tumbler ring but being set in said core socket and test ring when the ring is not fixed.
Inventors
- 👤 Horst Bresler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:39
CPC Classifications
E; E05; E05B; E05B35/00; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7565; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/7605; Y10T70/7729; Y10T70/7734; Y10T70/778; Y10T70/7791; Y10T70/7881; Y10T70/7893
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
400 words
In a variable locking device with the key thereof, instead of the bit or web, comprising two or more adjusting rings which are seated on the stem of the key and are only capable of revolving freely after the key has been inserted in the lock, and in which, moreover, the lock comprises a number of test rings corresponding to the number of adjusting rings, with said test rings concentrically surrounding the adjusting rings subsequently to the insertion of the key, and with said test rings, along their circumference, comprising a number of tumbler means permitting an arbitrary, but between the adjusting rings and the test rings, only a compulsory turning in discrete steps, the key comprises a hollow stem (2) on which the adjusting rings (4) are arranged next to each other, and inside which there is provided an axially displaceable spindle (8) divided into a number of sections corresponding to the number of adjusting rings (4), with each of said sections comprising a tapering (9), that the key stem (2) per spindle section, comprises along its circumference a certain number of bores (16) in which balls (11) are supported for engaging the internal toothings (12) of the adjusting rings (4), and blocking the turning thereof and which, when the key is inserted, owing to the displacement of the spindle (8) into the tapered portion, drop out of the bores, thus permitting the adjusting rings to be revolved, that moreover the lock comprises a number of test rings (17) corresponding to the number of adjusting rings (4), as well as a core socket (16) capable of revolving inside the lock cylinder (14) and surrounding the test rings (17) in their entirety and that the tumbler or securer means consist of several bores (25 . . . 27) uniformly distributed over the peripheral area of the lock cylinder (14), the core socket (16) and the test rings (17), with said bores each being associated with a locking pin (28 . . . 30) and, in the defined angular positions of both the adjusting rings and the test rings, in alignment with one another, with one of the bores (27) of the test rings (17) having a long locking pin (31), and that moreover the locking pins (30, 31) are so designed as to be capable of engaging the notch (6) extending along the peripheral area of the adjusting ring (4).
Claim 2
Dependent Claim
400 words
In a variable locking device with the key thereof, instead of the bit or web, comprising two or more adjusting rings which are seated on the stem of the key and are only capable of revolving freely after the key has been inserted in the lock, and in which, moreover, the lock comprises a number of test rings corresponding to the number of adjusting rings, with said test rings concentrically surrounding the adjusting rings subsequently to the insertion of the key, and with said test rings, along their circumference, comprising a number of tumbler means permitting an arbitrary, but between the adjusting rings and the test rings, only a compulsory turning in discrete steps, the key comprises a hollow stem (2) on which the adjusting rings (4) are arranged next to each other, and inside which there is provided an axially displaceable spindle (8) divided into a number of sections corresponding to the number of adjusting rings (4), with each of said sections comprising a tapering (9), that the key stem (2) per spindle section, comprises along its circumference a certain number of bores (16) in which balls (11) are supported for engaging the internal toothings (12) of the adjusting rings (4), and blocking the turning thereof and which, when the key is inserted, owing to the displacement of the spindle (8) into the tapered portion, drop out of the bores, thus permitting the adjusting rings to be revolved, that moreover the lock comprises a number of test rings (17) corresponding to the number of adjusting rings (4), as well as a core socket (16) capable of revolving inside the lock cylinder (14) and surrounding the test rings (17) in their entirety and that the tumbler or securer means consist of several bores (25 . . . 27) uniformly distributed over the peripheral area of the lock cylinder (14), the core socket (16) and the test rings (17), with said bores each being associated with a locking pin (28 . . . 30) and, in the defined angular positions of both the adjusting rings and the test rings, in alignment with one another, with one of the bores (27) of the test rings (17) having a long locking pin (31), and that moreover the locking pins (30, 31) are so designed as to be capable of engaging the notch (6) extending along the peripheral area of the adjusting ring (4).
Claim 3
Dependent Claim
159 words
A key operable with a cam member of a tumbler cam comprising a shank stem having a longitudinal stem bore opening at one end and having a hand engagement portion adjacent the opposite end, a plurality of tumbler engaging rings, each having an engagement recess for engaging the tumblers, rotatably mounted on said stem, an opening in said stem underlying each of said rings, a cam movable in the bore of said stem for each ring, a locking member associated with said cam and located in said opening to engage and lock each associated ring, said cam being displaceable in the bore by engagement of the cam setting member between a position in which said cam engages and forces said locking member into engagement with said rings to prevent rotation thereof and a position in which said cam permits inward movement of said locking member in their associated openings out of engagement with said rings to permit their rotation.
Claim 4
Dependent Claim
159 words
A key operable with a cam member of a tumbler cam comprising a shank stem having a longitudinal stem bore opening at one end and having a hand engagement portion adjacent the opposite end, a plurality of tumbler engaging rings, each having an engagement recess for engaging the tumblers, rotatably mounted on said stem, an opening in said stem underlying each of said rings, a cam movable in the bore of said stem for each ring, a locking member associated with said cam and located in said opening to engage and lock each associated ring, said cam being displaceable in the bore by engagement of the cam setting member between a position in which said cam engages and forces said locking member into engagement with said rings to prevent rotation thereof and a position in which said cam permits inward movement of said locking member in their associated openings out of engagement with said rings to permit their rotation.
Claim 5
Dependent Claim
172 words
An adjustable lock for a key having a shank stem with a hand engagement element on the opposite end and having at least one tumbler engagement ring having an engagement recess for engaging the tumbler rotatably mounted on the stem comprising a lock cylinder having a central keyway bore having at least one locking pin bore, a locking pin in said bore biased inwardly, a core socket having unlocking means actuable in one end part of said core socket to engage a bolt for unlocking, a settable test ring rotatable withIn the bore of said core socket and having a central key way bore, said test ring and said core socket having alignable radial bores, at least one locking pin in said radial bores having means biasing said locking pin into said keyway bore and in an interior biased position blocking said core socket and test ring against rotation when engaged in a fixed tumbler ring but being set in said core socket and test ring when the ring is not fixed.
Claim 6
Dependent Claim
172 words
An adjustable lock for a key having a shank stem with a hand engagement element on the opposite end and having at least one tumbler engagement ring having an engagement recess for engaging the tumbler rotatably mounted on the stem comprising a lock cylinder having a central keyway bore having at least one locking pin bore, a locking pin in said bore biased inwardly, a core socket having unlocking means actuable in one end part of said core socket to engage a bolt for unlocking, a settable test ring rotatable withIn the bore of said core socket and having a central key way bore, said test ring and said core socket having alignable radial bores, at least one locking pin in said radial bores having means biasing said locking pin into said keyway bore and in an interior biased position blocking said core socket and test ring against rotation when engaged in a fixed tumbler ring but being set in said core socket and test ring when the ring is not fixed.
Claim 7
Dependent Claim
305 words
An adjustable locking system comprising in combination (1) a key operable with a cam member of a tumbler cam including a shank stem having a longitudinal stem bore opening at one end and having a hand engagement portion adjacent the opposite end, a plurality of tumbler engaging rings, each having an engagement recess for engaging the tumblers, rotatably mounted on said stem, an opening in said stem underlying each of said rings, a cam moveable in the bore of said stem for each ring, a locking member associated with said cam and located in said opening to engage and lock each associated ring, said cam being displaceable in the bore by engagement of the cam setting members between a position in which said cam engages and forces said locking member into engagement with said rings to prevent rotation thereof and a position in which said cam permits inward movement of said locking members in their associated openings out of engagement with said rings to permit their rotation; and (2) a lock for said key including a lock cylinder having a central keyway bore having at least one locking pin bore, a locking pin in said bore biased inwardly, a core socket having unlocking means actuable in one end part of said core socket to engage the bolt for unlocking, a settable test ring rotatable within the bore of said core socket and having a central keyway bore, said test ring and said core socket having alignable radial bores, at least one locking pin in said radial bores having means biasing said locking pin into said key way bore and in an interior biased position locking said core socket and test ring against rotation when engaged in fixed tumbler ring but being set in said core socket and test ring when the ring is not fixed.
Claim 8
Dependent Claim
305 words
An adjustable locking system comprising in combination (1) a key operable with a cam member of a tumbler cam including a shank stem having a longitudinal stem bore opening at one end and having a hand engagement portion adjacent the opposite end, a plurality of tumbler engaging rings, each having an engagement recess for engaging the tumblers, rotatably mounted on said stem, an opening in said stem underlying each of said rings, a cam moveable in the bore of said stem for each ring, a locking member associated with said cam and located in said opening to engage and lock each associated ring, said cam being displaceable in the bore by engagement of the cam setting members between a position in which said cam engages and forces said locking member into engagement with said rings to prevent rotation thereof and a position in which said cam permits inward movement of said locking members in their associated openings out of engagement with said rings to permit their rotation; and (2) a lock for said key including a lock cylinder having a central keyway bore having at least one locking pin bore, a locking pin in said bore biased inwardly, a core socket having unlocking means actuable in one end part of said core socket to engage the bolt for unlocking, a settable test ring rotatable within the bore of said core socket and having a central keyway bore, said test ring and said core socket having alignable radial bores, at least one locking pin in said radial bores having means biasing said locking pin into said key way bore and in an interior biased position locking said core socket and test ring against rotation when engaged in fixed tumbler ring but being set in said core socket and test ring when the ring is not fixed.
Claim 9
Dependent Claim
258 words
The adjustable locking system, according to claim 4, wherein said tumbler bores include locking pins slidably mounted in said bores, each of said bores in said lock cylinder having a set screw adjustably mounted at the outer end of each of said bores and a compression spring between said set screw and one of said locking pins at the inner end of each of said bores and biasing the locking pin inwardly, each of said bores in said core socket having a locking pin slidably mounted therein and alignable with a bore having a locking pin in said lock cylinder, each of the locking pins in said core socket being of a length substantially equivalent to the thickness of said core socket, one of the locking pins in each of said test rings being of a length greater than the other locking pins in any one test ring, by a distance substantially equivalent to the depth of the exterior notch in a setting ring of the key, and all of the locking pins in each of said test rings having a projection of smaller diameter than said locking pin on the inner end of the locking pin for engagement with the exterior notch of the setting rings of the key, each of the bores in said setting rings having an opening into the interior of said lock which is adapted to permit said projection to extend therethrough without permitting said locking pin to fall into the interior of the lock when the key is withdrawn from the lock.
Claim 10
Dependent Claim
129 words
The adjustable locking system according to claim 4, wherein the outer peripheral surface of said test rings includes a toothed portion, at least one adjusting lever is pivotally connected to the lock cylinder having a slot therein, said lever extends through a corresponding slot in the core socket for engagement with the toothed portion of one of said test rings, said adjusting lever having a base portion and an ouTwardly extending lever point portion for engagement with the toothed portion of the test rings when one end and the base portion of the adjusting lever is pivoted away from engagement with the toothed portion of said test rings, an actuating bolt slidably mounted adjacent said base portion, and a compression spring for biasing said base portion toward said bolt.
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) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |