US4479114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omnidirectional acceleration alarm and switch therefor
Assignee: Individual
•
Filing: 1982-09-27
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Granted: 1984-10-23
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Expires: 2002-09-27
Abstract
Abstract A security device incorporates apparatus for producing a special alarm sound in response to a change in acceleration sensed with a special omnidirectional sensor and under the control of special SCR circuitry. The circuitry and sensor are especially adapted for the security application but have independent utility.
Inventors
- 👤 Yujiro Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:06
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; G08B13/00; G08B13/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
70 words
In a security system: sound generating means for generating two audible tones and interrupting means for interrupting one of said tones at a sub-audible rate; and acceleration detection means for initiating operation of said sound generating means comprising a switch having one of its contacts mounted for movement in response to movement of a spring and weight combination capable of omnidirectional movement relative to the other contact of said switch.
Claim 2
Dependent Claim
70 words
In a security system: sound generating means for generating two audible tones and interrupting means for interrupting one of said tones at a sub-audible rate; and acceleration detection means for initiating operation of said sound generating means comprising a switch having one of its contacts mounted for movement in response to movement of a spring and weight combination capable of omnidirectional movement relative to the other contact of said switch.
Claim 3
Dependent Claim
37 words
The invention defined in claim 1 in which said spring and weight comprises a length of spring material having a portion lying in one plane and carrying a weight whose center of gravity lies outside said plane.
Claim 4
Dependent Claim
45 words
The invention defined in claim 2 in which said acceleration detection means comprises two spring and weight combinations and in which said switch has two contacts each mounted for movement in response to movement of a respectively associated one of said spring and weight combinations.
Claim 5
Dependent Claim
34 words
The invention defined in claim 1 in which said spring and weight combination comprises a spirally wound spring having the weight fixed to the spring at the region of the center of the spiral.
Claim 6
Dependent Claim
112 words
The invention defined in claim 1 which further comprises power means for providing electrical power to said sound generating means; said power means comprising an electronic switch in series with said sound generating means and being of a type which is rendered non-conductive in the absence of supply potential and in which conduction is initiated by current flow at a control element while said electronic switch is subjected to supply potential; said sound generating means being effective to interrupt periodically the application of supply potential to said electronic switch; and electronic switch control means for causing current flow at said control element in response to change in the state of a condition.
Claim 7
Dependent Claim
17 words
The invention defined in claim 5 in which said electronic switch control means comprises said detection means.
Claim 8
Dependent Claim
51 words
The invention defined in claim 5 in which said electronic switch control means comprises said detection means effective, when actuated, to initiate current flow at said control element, and a first timer effective to render said switch incapable of initiating current flow at said control element for a predetermined time interval.
Claim 9
Dependent Claim
79 words
An acceleration detector comprising a spring and weight combination; a switch having one of its contacts mounted for movement in response to movement of said spring and weight combination, said spring and weight being capable of omnidirectional movement relative to the other contact of said switch, said spring and weight combination comprising a spring having a portion lying in one plane and carrying the weight such that the center of gravity of the weight lies outside said one plane.
Claim 10
Dependent Claim
79 words
An acceleration detector comprising a spring and weight combination; a switch having one of its contacts mounted for movement in response to movement of said spring and weight combination, said spring and weight being capable of omnidirectional movement relative to the other contact of said switch, said spring and weight combination comprising a spring having a portion lying in one plane and carrying the weight such that the center of gravity of the weight lies outside said one plane.
Claim 11
Dependent Claim
72 words
An acceleration detector comprising a spring and weight combination; a switch having one of its contacts mounted for movement in response to movement of said spring and weight combination, said spring and weight being capable of omnidirectional movement relative to the other contact of said switch, said spring and weight combination comprising a spirally wound spring having the weight fixed to the spring at the region of the center of the spiral.
Claim 12
Dependent Claim
72 words
An acceleration detector comprising a spring and weight combination; a switch having one of its contacts mounted for movement in response to movement of said spring and weight combination, said spring and weight being capable of omnidirectional movement relative to the other contact of said switch, said spring and weight combination comprising a spirally wound spring having the weight fixed to the spring at the region of the center of the spiral.
Claim 13
Dependent Claim
63 words
An acceleration detector comprising a spring and weight combination; a switch having one of its contacts mounted for movement in response to movement of said spring and weight combination, said spring and weight being capable of omnidirectional movement relative to the other contact of said switch, said spring comprising a length of spring material one portion of which is wound in spiral form.
Claim 14
Dependent Claim
63 words
An acceleration detector comprising a spring and weight combination; a switch having one of its contacts mounted for movement in response to movement of said spring and weight combination, said spring and weight being capable of omnidirectional movement relative to the other contact of said switch, said spring comprising a length of spring material one portion of which is wound in spiral form.
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) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |