US3971006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi directional motion and vibration triggering device
Assignee: Individual
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Filing: 1975-06-24
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Granted: 1976-07-20
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Expires: 1995-06-24
Abstract
Abstract A motion detector and unique switch forming a part thereof in which the switch includes a glass housing with a spherically shaped, concave surface in which a pool of mercury rests and a pair of separated annular contacts extending in parallel planes above the mercury when the parallel planes are horizontal and electrically connected together by the mercury when the planes are tilted to a predetermined angle to the horizontal. The switch is fixedly mounted in a base which also contains electronic components for transmitting to a central receiver and the case can be pivotably attached to a glass pane or the like for movement about an axis, which does not coincide with its center of gravity, by a base having adhesive on a planer surface with a threaded stud extending through the case to engage a wing nut.
Inventors
- 👤 Palmer W. Pressly, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:14
CPC Classifications
H; H01; H01H; H01H29/00; H01H29/20; H01H29/22; G; G08; G08B; G08B13/00; G08B13/02; G08B13/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
A motion detector for producing a motion signal comprising: switch means for producing said motion signal when shifted from a first to a second orientation with respect to a horizontal plane, case means defining an interior space in which said switch means is mounted in a position fixed with respect to said case means means mounted within said casing and connected to said switch means for transmitting a signal when said motion signal is produced and means for pivotably mounting said case means to a fixed planer surface about an axis which passes through said interior space but does not pass through the center of gravity of said case means so that pivotable movement of said case means shifts said case means to a position which shifts said switch means from said first to said second orientation by an external force applied to said case means so that said switch means produces said motion signal.
Claim 2
Dependent Claim
155 words
A motion detector for producing a motion signal comprising: switch means for producing said motion signal when shifted from a first to a second orientation with respect to a horizontal plane, case means defining an interior space in which said switch means is mounted in a position fixed with respect to said case means means mounted within said casing and connected to said switch means for transmitting a signal when said motion signal is produced and means for pivotably mounting said case means to a fixed planer surface about an axis which passes through said interior space but does not pass through the center of gravity of said case means so that pivotable movement of said case means shifts said case means to a position which shifts said switch means from said first to said second orientation by an external force applied to said case means so that said switch means produces said motion signal.
Claim 3
Dependent Claim
62 words
A detector as in claim 1 wherein said pivotably mounting means includes a base having a planer surface, adhesive backing fixed to said base surface for attaching said base to a window pane or the like, a threaded stud fixed to said base and extending through a hole in said case means and a nut engaging said threads within said case means.
Claim 4
Dependent Claim
13 words
A detector as in claim 2 wherein said nut is a wing nut.
Claim 5
Dependent Claim
91 words
A detector as in claim 1 wherein said switch means comprises a closed switch housing having a spherically shaped, concave surface and formed of electrically insulating material, a pool of mercury-trapped within said housing, and a pair of annular electrical contacts mounted in said housing above said concave surface and extending in roughly parallel planes so that when said parallel planes are horizontal said pool does not electrically connect said contacts but when said parallel planes are tilted to a predetermined angle to the horizontal said pool electrically connects and contacts.
Claim 6
Dependent Claim
11 words
A detector as in claim 4 wherein said housing is glass.
Claim 7
Dependent Claim
32 words
A detector as in claim 4 wherein said case means includes a hollow box having parallel sides and said parallel planes of said contacts extend at an angle to said parallel sides.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |