US3736778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination lock
Assignee: Kidde Inc
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Filing: 1971-12-15
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Granted: 1973-06-05
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Expires: 1991-12-15
Abstract
Abstract A combination lock of the multiple dial type employs a resiliently mounted plunger cooperable with a hasp to releasably connect the hasp to the combination lock. The lock includes a slide member mounted for movement to respective latched and unlatched positions, and means are provided permitting the slide member to move to unlatched position only when the dials are on predetermined open combination. The slide member and the plunger are provided with cooperable means to retract the plunger upon movement of the slide member to unlatched position. Ejector means located adjacent the plunger acts to forcibly separate the hasp from the combination lock upon retraction of the plunger.
Inventors
- 👤 L Bako
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:13
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/02; Y; Y10; Y10T; Y10T292/00; Y10T292/54; Y10T292/546; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5058; Y10T70/5062; Y10T70/508
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
A combination lock for connection to a hasp, the comBination lock comprising a plurality of rotatable dials, a sleeve associated with each dial for rotation therewith, a slide member mounted for movement to latched and unlatched positions, means permitting the slide member to move to unlatched position only when the dials are on predetermined open combination, a resiliently mounted plunger for releasable connection to the hasp, cooperable means provided by the slide member and the plunger to retract the plunger upon movement of the slide member to unlatched position, and means adjacent the plunger to eject the hasp from the combination lock upon retraction of the plunger.
Claim 2
Dependent Claim
107 words
A combination lock for connection to a hasp, the comBination lock comprising a plurality of rotatable dials, a sleeve associated with each dial for rotation therewith, a slide member mounted for movement to latched and unlatched positions, means permitting the slide member to move to unlatched position only when the dials are on predetermined open combination, a resiliently mounted plunger for releasable connection to the hasp, cooperable means provided by the slide member and the plunger to retract the plunger upon movement of the slide member to unlatched position, and means adjacent the plunger to eject the hasp from the combination lock upon retraction of the plunger.
Claim 3
Dependent Claim
46 words
A combination lock according to claim 1 wherein the cooperable means provided by the slide member and the plunger to retract the plunger upon movement of the slide member to unlatched position comprises cam means on the slide member and cam follower means on the plunger.
Claim 4
Dependent Claim
63 words
A combination lock according to claim 2 wherein the slide member is provided with a pair of transversely spaced arms at one end thereof, the plunger being positioned between the arms, the cam means on the slide member comprising a cam on each arm and the cam follower means on the plunger comprising a wing portion extending from each side of the plunger.
Claim 5
Dependent Claim
31 words
A combination lock according to claim 3 including a puller connected to the slide member, and resilient means associated with the puller to normally urge the slide member toward latched position.
Claim 6
Dependent Claim
74 words
A combination lock according to claim 4 including a face plate having longitudinally spaced slots, the dials being positioned to partially extend through the slots, an aperture extending through the face plate near one end thereof, the resiliently mounted plunger being positioned to extend through the aperture, the puller being positioned on the outer face of the face plate near the opposite end of the face plate and being connected to the slide member.
Claim 7
Dependent Claim
54 words
A combination lock according to claim 5 wherein a cap is positioned on the outer face of the face plate and connected thereto, the cap overlying the plunger and the means adjacent the plunger to eject the hasp, one side of the cap providing an opening for the entry and exit of the hasp.
Claim 8
Dependent Claim
72 words
A combination lock according to claim 6 wherein the means adjacent the plunger to eject the hasp upon retraction of the plunger comprises a generally U-shaped member having a pair of spaced arms and a base portion, the end of each arm having an upstanding projection, a spring extending between each projection and a shoulder provided by the cap and the base portion having an upstanding projection for engagement by the hasp.
Claim 9
Dependent Claim
24 words
A combination lock according to claim 7 wherein the opening for entry and exit of the hasp faces the side of the combination lock.
Claim 10
Dependent Claim
24 words
A combination lock according to claim 7 wherein the opening for entry and exit of the hasp faces the end of the combination lock.
Claim 11
Dependent Claim
47 words
A combination lock according to claim 1 including a face plate having lontitudinally spaced slots, the dials being positioned to partially extend through the slots, an aperture extending through the face plate near one end thereof, the resiliently mounted plunger being positioned to extend through the aperture.
Claim 12
Dependent Claim
54 words
A combination lock according to claim 10 wherein a cap is positioned on the outer face of the face plate and connected thereto, the cap overlying the plunger and the means adjacent the plunger to eject the hasp, one side of the cap providing an opening for the entry and exit of the hasp.
Claim 13
Dependent Claim
72 words
A combination lock according to claim 11 wherein the means adjacent the plunger to eject the hasp upon retraction of the plunger comprises a generally U-shaped member having a pair of spaced arms and a base portion, the end of each arm having an upstanding projection, a spring extending between each projection and a shoulder provided by the cap and the base portion having an upstanding projection for engagement by the hasp.
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |