Patent US2310010A successfully refreshed from Google Patents.
US3866069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage generating device
Assignee: Panasonic Holdings Corp
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Filing: 1973-09-04
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Granted: 1975-02-11
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Expires: 1993-09-04
Abstract
Abstract In a high voltage generating device of impact type using a piezoelectric element, which is utilized for lighting of cigarette lighters or gas burning instruments or the like, the invention particularly relates to improvements in an inner casing accommodating an impact element in such device so as to improve the mechanical strength of the casing and facilitate the assemblage of the component parts.
Inventors
- 👤 Akira Ishii
- 👤 Kaneichi Kondo
- 👤 Kenichi Uchibori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:48
CPC Classifications
H; H02; H02N; H02N2/00; H02N2/18; H02N2/183; F; F23; F23Q; F23Q3/00; F23Q3/002
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
232 words
A high voltage generating device comprising: a. an outer casing made of a synthetic resin, said outer casing having an open end, a window with a stepped portion located in one side thereof and a pin groove in an internal surface of said outer casing connecting said open end to said window, b. a piezoelectric element located within said outer casing at one end thereof, c. an inner casing made of a synthetic resin slidably inserted within said outer casing, saId inner casing having a bore with a spring end retaining guide formed therein and a window with an inclined portion located in one surface of said inner casing, d. an impact element having an impact pin extending from the periphery thereof, said impact element being slidably located within said inner casing with said impact pin projecting through the windows in said inner and outer casings, said impact pin being guided by said pin groove during assembly of said inner and outer casings to the window in said outer casing, e. an impact spring positioned within the bore of said inner casing with one end secured in said spring end retaining guide and the other end connected to said impact element, said impact spring being twisted to provide it with a torsional restraining force, and f. a return spring positioned within said outer casing between the piezoelectric element and said inner casing.
Claim 2
Dependent Claim
232 words
A high voltage generating device comprising: a. an outer casing made of a synthetic resin, said outer casing having an open end, a window with a stepped portion located in one side thereof and a pin groove in an internal surface of said outer casing connecting said open end to said window, b. a piezoelectric element located within said outer casing at one end thereof, c. an inner casing made of a synthetic resin slidably inserted within said outer casing, saId inner casing having a bore with a spring end retaining guide formed therein and a window with an inclined portion located in one surface of said inner casing, d. an impact element having an impact pin extending from the periphery thereof, said impact element being slidably located within said inner casing with said impact pin projecting through the windows in said inner and outer casings, said impact pin being guided by said pin groove during assembly of said inner and outer casings to the window in said outer casing, e. an impact spring positioned within the bore of said inner casing with one end secured in said spring end retaining guide and the other end connected to said impact element, said impact spring being twisted to provide it with a torsional restraining force, and f. a return spring positioned within said outer casing between the piezoelectric element and said inner casing.
Claim 3
Dependent Claim
65 words
The high voltage generating device according to claim 1, wherein said impact spring has opposite bent end portions extending in a direction at right angles to its axis, one of said end portion being fitted in a groove formed in a seat provided in said impact element and the other end portion fitted in a groove formed in a seat provided in said inner casing.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |