Patent US3899649A successfully refreshed from Google Patents.
US3899649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inertial impact switch with normally centered, conductive oscillating contact
Assignee: CB Kaupp and Sons Inc
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Filing: 1974-06-20
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Granted: 1975-08-12
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Expires: 1994-06-20
Abstract
Abstract An inertial impact switch has a housing which comprises to coaxial sections both of which are conductive but are insulated from each other, and a movable contact member normally engaging one generally cylindrical section and spring held out of contact with the other section. The second-mentioned section is the second switch contact element and has a circular flange serving as one mounting terminal; and a second mounting terminal is electrically and coaxially mechanically connected to the firstmentioned section and has an approximately flat surface parallel with the housing axis, so that each of said circular flange and said flat surface of the second mounting terminal can be set on one conductor of a printed circuit on a board to connect the switch in a circuit and firmly mount the switch on the board.
Inventors
- 👤 Bernard M Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:34
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
An inertial impact switch comprising a housing which includes first and second coaxial conductive sections electrically insulated from each other, the first of which serves as a switch contact element, a coaxial movable contact element normally in conductive engagement with the second housing section, said movable contact element being normally urged by a spring into contact with the second housing section and into spaced relation to the first housing section and adapted to be urged to momentarily contact with the first housing section in response to an impact received by the switch, said spring having one end directly engaging said movable contact element and its other end abutting an insulation disc between said housing sections, said first housing section having an exterior circular mounting terminal and said second housing section having an exterior polysided mounting terminal coaxial with said circular mounting terminal.
Claim 2
Dependent Claim
142 words
An inertial impact switch comprising a housing which includes first and second coaxial conductive sections electrically insulated from each other, the first of which serves as a switch contact element, a coaxial movable contact element normally in conductive engagement with the second housing section, said movable contact element being normally urged by a spring into contact with the second housing section and into spaced relation to the first housing section and adapted to be urged to momentarily contact with the first housing section in response to an impact received by the switch, said spring having one end directly engaging said movable contact element and its other end abutting an insulation disc between said housing sections, said first housing section having an exterior circular mounting terminal and said second housing section having an exterior polysided mounting terminal coaxial with said circular mounting terminal.
Claim 3
Dependent Claim
30 words
An inertial impact switch as defined in claim 1 wherein said coaxial polysided mounting terminal is provided with at least one flat surface parallel to the axis of the housing.
Claim 4
Dependent Claim
42 words
An inertial impact switch as defined in claim 2 wherein said flat surface is spaced from the housing axis a distance approximately equal to the diameter of said circular mounting terminal in tangential coincidence with the periphery of said circular mounting terminal.
Claim 5
Dependent Claim
67 words
The inertial impact switch as defined in claim 1 wherein said second section is cup-shaped with a bottom wall and a cylindrical side wall, said movable element is conical and has an outwardly projecting flange at its larger end directly engaging said bottom wall of said second section, and said spring is helical and interposed between said flange on the movable contact element and said insulation disc.
References Cited (Backward Citations)
US2972026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |