Patent US2470479A successfully refreshed from Google Patents.
US3855786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact-proof watchcase
Assignee: Seiko Instruments Inc
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Filing: 1973-12-21
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Granted: 1974-12-24
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Expires: 1993-12-21
Abstract
Abstract An impact-proof watchcase having a watchcase band with an internal shoulder. A watchcase inner ring is provided within the band within which is disposed a ring supporting a dial and watchworks internally thereof. An impact-absorbing member is disposed between the inner shoulder and the ring supporting the dial for absorbing impacts on the watchcase. A watch crystal is provided for viewing the dial and a bezel is disposed circumferentially of the watch crystal. A second impact-absorbing member is disposed cooperative with the watchcase inner ring and provides an elastic support therefore for absorbing shocks to which the watchworks are subjected. The impact-absorbing members absorb movements or vibrations in three dimensions.
Inventors
- 👤 E Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:18
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/04; G04B37/05; G04B37/052
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
An impact-proof watchcase comprising a dial, a backcover, a watchcase band therebetween having an internal peripheral downwardly facing shoulder, inner ring means within said watchcase band, watchworks disposed within said inner ring means mounted thereon, a first shock-absorbing resilient member coactive with said watchcase band shoulder resiliently absorbing vibrations of said watchworks in three dimensions, and a second shock-absorbing resilient member of considerable stiffness radially of the watchcase, bearing against a portion of the watchcase which is at least close to the backcover for resiliently supporting said inner ring means relative to said watchcase band for absorbing three dimensional vibrations of said watchworks.
Claim 2
Dependent Claim
103 words
An impact-proof watchcase comprising a dial, a backcover, a watchcase band therebetween having an internal peripheral downwardly facing shoulder, inner ring means within said watchcase band, watchworks disposed within said inner ring means mounted thereon, a first shock-absorbing resilient member coactive with said watchcase band shoulder resiliently absorbing vibrations of said watchworks in three dimensions, and a second shock-absorbing resilient member of considerable stiffness radially of the watchcase, bearing against a portion of the watchcase which is at least close to the backcover for resiliently supporting said inner ring means relative to said watchcase band for absorbing three dimensional vibrations of said watchworks.
Claim 3
Dependent Claim
26 words
An impact-proof watchcase according to claim 1, in which said first shock-absorbing member is a ring and in which said second shock-absorbing member is a ring.
Claim 4
Dependent Claim
17 words
An impact-proof watchcase according to claim 1, in which said first shock-absorbing member has a C-shaped cross-section.
Claim 5
Dependent Claim
17 words
An impact-proof watchcase according to claim 1, in which said first shock-absorbing member is a tubular ring.
Claim 6
Dependent Claim
17 words
An impact-proof watchcase according to claim 1, in which said first shock-absorbing member is a coil spring.
Claim 7
Dependent Claim
17 words
An impact-proof watchcase according to claim 1, in which said first shock-absorbing member is a sinusoidal spring.
Claim 8
Dependent Claim
33 words
An impact-proof watchcase according to claim 1, in which said first shock-absorbing resilient member comprises a dial ring for supporting a dial thereon and having a resilient peripheral portion engaging said watchcase band.
Claim 9
Dependent Claim
17 words
An impact-proof watchcase according to claim 1, in which said second shock-absorbing member is a resilient ring.
Claim 10
Dependent Claim
23 words
An impact-proof watchcase according to claim 8, in which said resilient ring supports said inner ring means and bears against said watchcase band.
Claim 11
Dependent Claim
21 words
An impact-proof watchcase according to claim 8, in which said resilient ring has an inner portion which underlies said inner ring.
Claim 12
Dependent Claim
42 words
An impact-proof watchcase according to claim 8, in which said resilient ring is disposed extending into said watchcase band and into said inner ring, said watchcase band and said inner ring each having an annular recess into which said resilient ring extends.
References Cited (Backward Citations)
FR366361A
Cited
US1995951A
Cited
US2044752A
Cited
CH377734A
Cited
FR1509590A
Cited
CH470706A
Cited
CH479906A
Cited
US3520130A
Cited
US3727367A
Cited
US3735584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |