US3841080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Watch display switch
Assignee: Individual
•
Filing: 1973-11-19
•
Granted: 1974-10-15
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Expires: 1993-11-19
Abstract
Abstract A tilt sensitive electrical switch wherein an asymmetrically balanced disc mounted on an axis causes electrical contact to be made when it is aligned in the desired activation region (plane); various embodiments are provided for causing electrical contact and for minimizing electrical energy dissipation.
Inventors
- 👤 Donald B O
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:48
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/001; G04C3/002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
76 words
A wrist watch including in combination, a circuit comprising a switch means in series with a power source and a light emitting means, said switch means including a fixed arm and a movable arm, means mounting said movable arm and effective to close the switch means by moving the movable arm into engagement with the fixed arm when the watch is in one attitude and effective to open the switch means when not in said attitude.
Claim 2
Dependent Claim
76 words
A wrist watch including in combination, a circuit comprising a switch means in series with a power source and a light emitting means, said switch means including a fixed arm and a movable arm, means mounting said movable arm and effective to close the switch means by moving the movable arm into engagement with the fixed arm when the watch is in one attitude and effective to open the switch means when not in said attitude.
Claim 3
Dependent Claim
32 words
The device as set forth in claim 1 wherein a rotatable member comprising a half disc is carried on said means mounting and said movable arm is carried by said half disc.
Claim 4
Dependent Claim
59 words
The device as set forth in claim 1 wherein said means mounting comprises a rotatable half disc and cam means on said half disc and said movable arm comprises a spring biased electrode in engagement with said cam means and effective on rotation of said half disc to be brought into and out of engagement with said fixed electrode.
Claim 5
Dependent Claim
52 words
The device as set forth in claim 1 wherein said means mounting said movable arm includes a shaft, an axially displaceable half disc rotatably journaled on said shaft and said means mounting said movable arm being effective to move said arm axially relative to said fixed electrode in response to gravity forces.
Claim 6
Dependent Claim
75 words
The device as set forth in claim 1 wherein said means mounting comprises asymmetrically weighted plate rotatably journaled on the watch such that when the axis is tilted from the vertical position, the plate will rotate to a gravity induced first position and upon a change of attitude, be rotatable into a second position, said asymmetrical weighted plate carrying said movable arm and effective to close the switch means when in the second mentioned position.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |