US4535391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable emergency light
Assignee: Individual
•
Filing: 1984-07-20
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Granted: 1985-08-13
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Expires: 2004-07-20
Abstract
Abstract A portable emergency light comprising two lamps at slopes on two lateral sides with the slope design to lower their height and space requirement, connection means consisting of slipper and slotted block between each lamp and light body, so that the lamps is detachable for moving to any other area for lighting purpose; controllers for lighting, extinguishing or flickering each respective lamps for lighting or warning purpose to add function of the emergency light and a plug on its holder to connect rectified and voltage reduced power source to the emergency light while it is positioned on the holder and the emergency light is disconnected from the said power source by applies its own built-in battery after it is detached from the holder.
Inventors
- 👤 Meng-Chang Hsiao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:22
CPC Classifications
F; F21; F21S; F21S9/00; F21S9/02; F21S9/022; F21L; F21L14/00; F21L2/00; F21L4/00; F21L4/02; F21L4/04; F21L4/06; F21L4/08; F21V; F21V21/00; F21V21/08; F21V21/096
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
A portable emergency light which can be used as a stationary emergency light while it is fixed at a place and as a portable light after removing it from its fixed place comprising: a light housing at least two lamps wherein at least one lamp has an extension cord which can be detached from the light housing; lamp lowering means for minimizing the space requirements of the lamps; and a flickering controller for said lamps and switches which control each said lamp for lighting, extinguishing or flickering respectively a said lamp.
Claim 2
Dependent Claim
91 words
A portable emergency light which can be used as a stationary emergency light while it is fixed at a place and as a portable light after removing it from its fixed place comprising: a light housing at least two lamps wherein at least one lamp has an extension cord which can be detached from the light housing; lamp lowering means for minimizing the space requirements of the lamps; and a flickering controller for said lamps and switches which control each said lamp for lighting, extinguishing or flickering respectively a said lamp.
Claim 3
Dependent Claim
29 words
A portable emergency light according to claim 1, wherein a said lamp is attached to said housing with a permanent magnet fixed to the bottom of a said lamp.
Claim 4
Dependent Claim
69 words
A portable emergency light according to claim 1, wherein said light further comprises: a recharging holder configured to receive said light housing, said holder having a power socket, said housing having a socket configured to mate with said power socket, said housing having rechargable batteries therein, whereby when said housing is positioned in said recharging holder said power socket is mated with said socket and said batteries are recharged.
Claim 5
Dependent Claim
145 words
A portable light source comprising: a housing, said housing having front and back walls, said housing having a pair of side walls, said housing having a top and a bottom, said top having a first central top portion parallel to said bottom, a second portion and a third top portion connected to said first portion, said second portion and said third portion sloping from the boundary with said first portion downwardly to a respective side wall; a slipper member positioned on said second portion and a slipper member positioned on said third portion; two lamps; a means for releasably interconnecting a said slipper member and a said lamp; an electrical power source within said housing, said electrical power source including a rectification circuit, switches, a lamp flickering controller, and a rechargable battery; and circuit means for electrically connecting said lamps to said electrical power source.
Claim 6
Dependent Claim
145 words
A portable light source comprising: a housing, said housing having front and back walls, said housing having a pair of side walls, said housing having a top and a bottom, said top having a first central top portion parallel to said bottom, a second portion and a third top portion connected to said first portion, said second portion and said third portion sloping from the boundary with said first portion downwardly to a respective side wall; a slipper member positioned on said second portion and a slipper member positioned on said third portion; two lamps; a means for releasably interconnecting a said slipper member and a said lamp; an electrical power source within said housing, said electrical power source including a rectification circuit, switches, a lamp flickering controller, and a rechargable battery; and circuit means for electrically connecting said lamps to said electrical power source.
References Cited (Backward Citations)
US3125300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |