US3731084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable flashlight
Assignee: —
•
Filing: 1972-03-20
•
Granted: 1973-05-01
•
Expires: 1992-03-20
Abstract
Abstract A flashlight integral with a harness so it can be supported from the shoulders of a person and child so that their hands are free for other tasks. The device consists of a flashlight unit equipped with an electric lamp and dry cell battery which is attached to a pair of flexible hollow stems each of which is secured to an adjustable shoulderband and a mercury actuated switch pivotally attached to one of the shoulder bands.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:06
CPC Classifications
F; F16; F16M; F16M13/00; F16M13/04; F16M11/00; F16M11/20; F16M11/24; F16M11/40; F21; F21V; F21V21/00; F21V21/14; F21V21/32; F21W; F21W2131/00; F21W2131/30; F21W2131/3005; Y; Y10; Y10S; Y10S362/00; Y10S362/802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A portable light comprising in combination a flashlight unit, said flashlight unit comprising a case, a dry cell battery and an electric lamp electrically connected to said battery, said case enclosing said battery and lamp; a harness comprising a pair of flexible hollow stems having first and second ends, each of said first ends of said hollow stems being attached to said casing, and a pair of shoulder bands, one of said shoulder bands being attached to each of said hollow stems at said second end, said shoulder bands being self-adjustable to the contour of a wearer''s shoulder; a mercury accuated switch electrically connected to said battery and lamp for opening and closing a circuit between said battery and said lamp; and support means pivotably mounting said switch on one of said shoulder bands so that a wearer can assume a position at a predetermined angle and adjust said switch for closing a circuit to said lamp and said switch will automatically open a circuit to said lamp when a wearer assumes a position at an angle other than the predetermined angle.
Claim 2
Dependent Claim
182 words
A portable light comprising in combination a flashlight unit, said flashlight unit comprising a case, a dry cell battery and an electric lamp electrically connected to said battery, said case enclosing said battery and lamp; a harness comprising a pair of flexible hollow stems having first and second ends, each of said first ends of said hollow stems being attached to said casing, and a pair of shoulder bands, one of said shoulder bands being attached to each of said hollow stems at said second end, said shoulder bands being self-adjustable to the contour of a wearer''s shoulder; a mercury accuated switch electrically connected to said battery and lamp for opening and closing a circuit between said battery and said lamp; and support means pivotably mounting said switch on one of said shoulder bands so that a wearer can assume a position at a predetermined angle and adjust said switch for closing a circuit to said lamp and said switch will automatically open a circuit to said lamp when a wearer assumes a position at an angle other than the predetermined angle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |