US3681957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-axial-pin tumbler lock
Assignee: Individual
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Filing: 1970-12-16
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Granted: 1972-08-08
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Expires: 1990-12-16
Abstract
Abstract A key-operated lock of the multiple-axial-pin tumbler type comprises a stationary magazine carrying driver pins and a rotary magazine carrying spring-loaded pins, and is provided with the following features: (a) the key comprises a tubular shaft and has fingers which are clamped in position in axial grooves around the shaft and which are replaceable to adapt the key readily to any one of a range of lock combinations; (b) the stationary magazine is removable or has a removable part to permit withdrawal and rearrangement or replacement of the pins; and, (c) the springloaded pins have non-uniform strokes to increase the difficulty of determining the pin depressions required to open the lock.
Inventors
- 👤 Ronald F Sturgeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:45
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/02; E05B27/08; E05B27/083; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/726; Y10T70/7271; Y10T70/7277; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7667; Y10T70/7689; Y10T70/7701; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7847; Y10T70/7853; Y10T70/7881; Y10T70/7893; Y10T70/7915; Y10T70/7932
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
For a multiple-axial-pin tumbler lock, a key comprising: a tubular shaft of a shape insertable into the lock and on its outer face having structure defining a series of axial recesses; a set of locking fingers of selected predetermined length fixedly seated in said recesses, each finger having an abutment; clamping means fixedly holding each finger in a predetermined position in register with the recess structure which supports the finger, by engagement with said abutment on each said finger, said abutment of each finger comprising a generally central shoulder adapted to be clamped in position, the finger further comprising a positioning limb extending rearwardly from the shoulder, and a working limb extending forwardly from the shoulder and seating in one of said grooves; and a male-threaded body part; said clamping means comprising a female-threaded collar matable with said male threaded body part and said clamping means being clampable of said shoulder in a sandwiched position between said collar and said body part.
Claim 2
Dependent Claim
162 words
For a multiple-axial-pin tumbler lock, a key comprising: a tubular shaft of a shape insertable into the lock and on its outer face having structure defining a series of axial recesses; a set of locking fingers of selected predetermined length fixedly seated in said recesses, each finger having an abutment; clamping means fixedly holding each finger in a predetermined position in register with the recess structure which supports the finger, by engagement with said abutment on each said finger, said abutment of each finger comprising a generally central shoulder adapted to be clamped in position, the finger further comprising a positioning limb extending rearwardly from the shoulder, and a working limb extending forwardly from the shoulder and seating in one of said grooves; and a male-threaded body part; said clamping means comprising a female-threaded collar matable with said male threaded body part and said clamping means being clampable of said shoulder in a sandwiched position between said collar and said body part.
Claim 3
Dependent Claim
157 words
For a multiple-axial pin tumbler lock, a key comprising (a) a key body having a front extremity in the form of a tubular shaft adapted for insertion into the lock and provided with a series of axial recesses formed on its outer face, and, at the rear of said front extremity, a radially outwardly extending shoulder portion including an internal axial recess extending rearwardly from each axial recess of said front extremity, (b) a set of locking fingers each comprising a front working limb seated in an axial recess of said front extremity, a rear positioning limb seated in the recess of said shoulder portion and a radially extending abutment arranged between said limbs and engaging with said shoulder portion, the said working limbs of said set of fingers being of selected lengths, and (c) a clamping collar located around said shoulder portion and holding said radially extending abutments of said fingers clamped against said shoulder portion.
Claim 4
Dependent Claim
157 words
For a multiple-axial pin tumbler lock, a key comprising (a) a key body having a front extremity in the form of a tubular shaft adapted for insertion into the lock and provided with a series of axial recesses formed on its outer face, and, at the rear of said front extremity, a radially outwardly extending shoulder portion including an internal axial recess extending rearwardly from each axial recess of said front extremity, (b) a set of locking fingers each comprising a front working limb seated in an axial recess of said front extremity, a rear positioning limb seated in the recess of said shoulder portion and a radially extending abutment arranged between said limbs and engaging with said shoulder portion, the said working limbs of said set of fingers being of selected lengths, and (c) a clamping collar located around said shoulder portion and holding said radially extending abutments of said fingers clamped against said shoulder portion.
Claim 5
Dependent Claim
24 words
A key according to claim 2 wherein said internal axial recess of said shoulder portion comprises a cylindrical recess coaxial with said front extremity.
Claim 6
Dependent Claim
21 words
A key according to claim 2 wherein said clamping collar is in screw threaded relation to the circumference of said shoulder.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |