US4654764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary structure for the head portion of an illumination light
Assignee: Individual
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Filing: 1985-10-15
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Granted: 1987-03-31
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Expires: 2005-10-15
Abstract
Abstract A hand-held illumination device includes a body adapted to contain a battery and a head portion containing a light bulb and being rotatable relative to the body about two orthogonal axes. A connector member is mounted on the body for rotation relative thereto about a first axis, and has hook members slidingly engaging slots on a spherical portion of the head portion to permit rotation of the head portion about a second axis orthogonal to the first axis.
Inventors
- 👤 Meng-Chang Hsiao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:41
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/04; F21L2/00; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T403/32073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A self-powered illumination device comprising a head portion and a body, said body being adapted to contain an energy source and to supply energy to said head portion, said head portion containing a light source to be powered by energy supplied by said energy source, and having a rear portion which has an essentially spherically shaped portion having at least two parallel slots thereon; and a connector member disposed between said body and said head portion and mounted on said body for rotation relative thereto about a first axis, said connector member having at least two hook members which are inserted into and slidingly engage said slots to permit rotation of said head portion relative to said body about a second axis containing the center of said spherically shaped portion, said second axis being orthogonal to said first axis.
Claim 2
Dependent Claim
139 words
A self-powered illumination device comprising a head portion and a body, said body being adapted to contain an energy source and to supply energy to said head portion, said head portion containing a light source to be powered by energy supplied by said energy source, and having a rear portion which has an essentially spherically shaped portion having at least two parallel slots thereon; and a connector member disposed between said body and said head portion and mounted on said body for rotation relative thereto about a first axis, said connector member having at least two hook members which are inserted into and slidingly engage said slots to permit rotation of said head portion relative to said body about a second axis containing the center of said spherically shaped portion, said second axis being orthogonal to said first axis.
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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |