US3594520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitation switch
Assignee: RCA Corp
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Filing: 1969-10-22
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Granted: 1971-07-20
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Expires: 1989-10-22
Abstract
Abstract Disclosed is a switch element, primarily for use within a detection system. The switch is formed of electrically conductive links intercoupled in a loose chain and exhibits a through impedance, as measured across its terminals, which changes significantly when it is agitated from a state of quiescence.
Inventors
- 👤 James R Hall
- 👤 Peter B Korda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:36
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/12; G08B13/126; G08B13/22; H; H01; H01H; H01H35/00; H01H35/14; H01H35/144
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
An agitation sensitive switch comprising: a plurality of intercoupled conductive links, said links exhibiting a first through impedance when positioned in any of a number of possible positions and a second through impedance when momentarily disturbed from said positions, one of said through impEdances corresponding to a relatively high impedance, and the other of said through impedances corresponding to a relatively low impedance, and means loosely connecting the terminal links of said intercoupled links to linearly extending portions of a pair of terminals of an electrical circuit, for completing said circuit.
Claim 2
Dependent Claim
91 words
An agitation sensitive switch comprising: a plurality of intercoupled conductive links, said links exhibiting a first through impedance when positioned in any of a number of possible positions and a second through impedance when momentarily disturbed from said positions, one of said through impEdances corresponding to a relatively high impedance, and the other of said through impedances corresponding to a relatively low impedance, and means loosely connecting the terminal links of said intercoupled links to linearly extending portions of a pair of terminals of an electrical circuit, for completing said circuit.
Claim 3
Dependent Claim
92 words
An agitation sensitive switch for effectively completing an electrical circuit, said switch comprising: a plurality of intercoupled conductive links, said links exhibiting a relatively high through impedance during periods of quiescence and a relatively low through impedance during momentary periods of agitation, and means loosely connecting the terminal links of said plurality of links to linearly extending portions of a pair of terminals of said electrical circuit, for completing said circuit, said plurality of links effectively operating as an open switch during periods of quiescence and as a closed switch when agitated.
Claim 4
Dependent Claim
92 words
An agitation sensitive switch for effectively completing an electrical circuit, said switch comprising: a plurality of intercoupled conductive links, said links exhibiting a relatively high through impedance during periods of quiescence and a relatively low through impedance during momentary periods of agitation, and means loosely connecting the terminal links of said plurality of links to linearly extending portions of a pair of terminals of said electrical circuit, for completing said circuit, said plurality of links effectively operating as an open switch during periods of quiescence and as a closed switch when agitated.
Claim 5
Dependent Claim
30 words
An agitation sensitive switch as defined in claim 2, said relatively high through impedance being in excess of 20 megohms, said relatively low through impedance being less than 10 ohms.
Claim 6
Dependent Claim
22 words
An agitation sensitive switch as defined in claim 2, said switch further comprising: a hollow sleeve which houses said plurality of links.
Claim 7
Dependent Claim
57 words
An agitation sensitive switch as defined in claim 4 wherein said pair of terminals comprises pinlike elements, said elements being affixed to said hollow sleeve and passing therethrough in orthogonal relationship with the longitudinal axis thereof, said elements being disposed to pass through the terminal links of said intercoupled plurality of links housed within said hollow sleeve.
Claim 8
Dependent Claim
22 words
An agitation sensitive switch as defined in claim 5, said pinlike elements being disposed in nonparallel relationship with respect to each other.
Claim 9
Dependent Claim
102 words
An agitation sensitive switch for effectively completing an electrical circuit, said switch comprising: a plurality of intercoupled conductive links, said links normally exhibiting a relatively low through impedance when suspended in free space, and a relatively high through impedance when momentarily disturbed from said state of suspension, and means loosely connecting the terminal links of said plurality of links to linearly extending portions of a pair of terminals of an electrical circuit, for completing said circuit, said plurality of links effectively operating as a closed switch during periods of suspension and as an open switch when disturbed from said position of suspension.
Claim 10
Dependent Claim
102 words
An agitation sensitive switch for effectively completing an electrical circuit, said switch comprising: a plurality of intercoupled conductive links, said links normally exhibiting a relatively low through impedance when suspended in free space, and a relatively high through impedance when momentarily disturbed from said state of suspension, and means loosely connecting the terminal links of said plurality of links to linearly extending portions of a pair of terminals of an electrical circuit, for completing said circuit, said plurality of links effectively operating as a closed switch during periods of suspension and as an open switch when disturbed from said position of suspension.
Claim 11
Dependent Claim
30 words
An agitation sensitive switch as defined in claim 7, said relatively low through impedance being less than 10 ohms, said relatively high through impedance being in excess of 20 megohms.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |