US3943309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock mechanism
Assignee: NCR Voyix Corp
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Filing: 1975-02-27
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Granted: 1976-03-09
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Expires: 1995-02-27
Abstract
Abstract A locking mechanism of the cylinder type for a business machine wherein four different keys can be accommodated in a single lock to perform various functions or modes of operation. The mechanism includes ring members and locking pins operably associated with the cylinder and with the lock body either to permit or to restrict rotational movement thereof with respect to the ring members. Rotation of a key in the cylinder to a predetermined limit sets up a switching arrangement to provide a signal for each mode of operation desired to be accomplished.
Inventors
- 👤 Takao Kawamoto
- 👤 Nobuyoshi Mizuno
- 👤 Akira Ota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:08
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/0053; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7446
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
A lock mechanism comprising a body portion, a cylinder received in said body portion and having a key slot defined therethrough, at least two rings each being rotatably arranged between said body portion and said cylinder, a plurality of locking pins positioned to cause said rings to engage with said body portion or with said cylinder by reason of a selected key being inserted into said key slot and rotated therein, means for limiting the angular rotation of each ring in relation to said body portion and/or said cylinder, and means connected to said cylinder for developing a signal responsive to rotation of said selected key.
Claim 2
Dependent Claim
106 words
A lock mechanism comprising a body portion, a cylinder received in said body portion and having a key slot defined therethrough, at least two rings each being rotatably arranged between said body portion and said cylinder, a plurality of locking pins positioned to cause said rings to engage with said body portion or with said cylinder by reason of a selected key being inserted into said key slot and rotated therein, means for limiting the angular rotation of each ring in relation to said body portion and/or said cylinder, and means connected to said cylinder for developing a signal responsive to rotation of said selected key.
Claim 3
Dependent Claim
25 words
The lock mechanism of claim 1 including means connected with said cylinder for enabling selection of only one position of rotation to develop said signal.
Claim 4
Dependent Claim
28 words
The locking mechanism of claim 1 including control means operably associated with said rings and with said body portion for limiting rotational motion of one of said rings.
Claim 5
Dependent Claim
29 words
The locking mechanism of claim 1 wherein said body portion of said cylinder include juxtaposed surfaces slidable in relation to each other for permitting selected functional positions of operation.
Claim 6
Dependent Claim
27 words
The locking mechanism of claim 1 wherein said limiting means includes stop pins secured to said body portion and extending through said rings and into said cylinder.
Claim 7
Dependent Claim
25 words
The locking mechanism of claim 1 wherein said plurality of locking pins are spaced to operate with different types of keys inserted into said cylinder.
Claim 8
Dependent Claim
22 words
The locking mechanism of claim 1 wherein said connected means includes a disk member secured to said cylinder for developing said signal.
Claim 9
Dependent Claim
32 words
The locking mechanism of claim 1 wherein said connected means includes a disk member secured to said cylinder for rotation therewith and contact members urged into selected positions for developing functional signals.
Claim 10
Dependent Claim
92 words
Mechanism for permitting selected function operations comprising a body portion, a cylinder rotatable in said body portion and having a key slot therein for receiving any one of a plurality of keys, means rotatably positioned between said body portion and said cylinder, each of said keys being operable to engage said rotatable means with either said body portion or with said cylinder, means for limiting said rotatable means in relation to said body portion or with said cylinder, and means connected with said cylinder for developing signal means for the selected function.
Claim 11
Dependent Claim
92 words
Mechanism for permitting selected function operations comprising a body portion, a cylinder rotatable in said body portion and having a key slot therein for receiving any one of a plurality of keys, means rotatably positioned between said body portion and said cylinder, each of said keys being operable to engage said rotatable means with either said body portion or with said cylinder, means for limiting said rotatable means in relation to said body portion or with said cylinder, and means connected with said cylinder for developing signal means for the selected function.
Claim 12
Dependent Claim
25 words
The mechanism of claim 9 including means connected with said cylinder for enabling selection of only one position of rotation to develop said signal means.
Claim 13
Dependent Claim
27 words
The mechanism of claim 9 including control means operably associated with said rotatable means and with said body portion for limiting rotational motion of said rotatable means.
Claim 14
Dependent Claim
26 words
The mechanism of claim 9 wherein said limiting means includes stop members secured to said body portion and extending through said rotatable means into said cylinder.
Claim 15
Dependent Claim
45 words
The mechanism of claim 9 wherein said body portion and said cylinder include adjacent surfaces slidable in relation to each other and a plurality of locking members spaced to permit operation with any one of said plurality of keys to select the desired functional operation.
Claim 16
Dependent Claim
22 words
The mechanism of claim 9 wherein said connected means includes a disk member secured to said cylinder for developing said signal means.
Claim 17
Dependent Claim
32 words
The mechanism of claim 9 wherein said connected means includes a disk member secured to said cylinder for rotation therewith and contact members urged into selected positions for developing said signal means.
References Cited (Backward Citations)
US2667785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |