US3579100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashlight adapted for short circuit testing
Assignee: Individual
•
Filing: 1969-05-14
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Granted: 1971-05-18
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Expires: 1989-05-14
Abstract
Abstract An apparatus is disclosed comprising a flashlight having two bulbs at the light-emitting end, and equipped with a threepronged adapter at the rearward end. The two bulbs are wired through the batteries and a two position switch such that a short circuit between any pair of terminals of a three-terminal socket is detected by a specific pattern of energized bulbs.
Inventors
- 👤 Palmer R Lauver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:35
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
173 words
A flashlight short circuit testing apparatus, comprising: a. flashlight case means, incorporating a head structure; b. battery means, contained within said flashlight case means; c. lamp means, contained in said head structure, comprised of two two-terminal lamps; d. circuit means, connecting a first terminal of each said two lamps to a first terminal of said battery means at a common point, the second terminal of said battery means to a common switching point, the second terminal of the first of said lamps to a second output terminal, and the second terminal of the second of said lamps to a third output terminal; e. switching means, whereby said common switching point is switchable to said second output terminal and a first output terminal respectively; f. adapter means attached to the rearward end of said case means for communication with a standard wall socket, having a plurality of prongs suitable for electrical connection with such a standard wall socket, each of said plurality of prongs being coupled to an output terminal of said circuit means.
Claim 2
Dependent Claim
173 words
A flashlight short circuit testing apparatus, comprising: a. flashlight case means, incorporating a head structure; b. battery means, contained within said flashlight case means; c. lamp means, contained in said head structure, comprised of two two-terminal lamps; d. circuit means, connecting a first terminal of each said two lamps to a first terminal of said battery means at a common point, the second terminal of said battery means to a common switching point, the second terminal of the first of said lamps to a second output terminal, and the second terminal of the second of said lamps to a third output terminal; e. switching means, whereby said common switching point is switchable to said second output terminal and a first output terminal respectively; f. adapter means attached to the rearward end of said case means for communication with a standard wall socket, having a plurality of prongs suitable for electrical connection with such a standard wall socket, each of said plurality of prongs being coupled to an output terminal of said circuit means.
Claim 3
Dependent Claim
16 words
The invention as described in claim 1, wherein said switching means is a conventional two-position switch.
Claim 4
Dependent Claim
24 words
The invention as claimed in claim 1, wherein said adapter means is a three-pronged adapter, suitable for electrical coupling with standard three-terminal wall sockets.
Claim 5
Dependent Claim
24 words
The invention as claimed in claim 1, wherein said adapter means is a two-pronged adapter, suitable for electrical coupling with conventional two-terminal wall sockets.
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |