US3912919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery-operated hand lamp
Assignee: Individual
•
Filing: 1974-05-21
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Granted: 1975-10-14
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Expires: 1994-05-21
Abstract
Abstract A battery-operated hand lamp which may be converted to a head lamp. It comprises a casing housing a glow-lamp holder, a switch, a reflector, and a number of batteries, and a lid housing a strap means by means of which the lamp may be attached to e.g. a user''s head and serve as a head lamp (frontal lamp). During use of the hand lamp as a head lamp the strap is stored inside the lid but means are arranged to allow a portion of said belt to be quickly and easily extracted from the lid interior and whereby the length of said belt portion may be adjusted to the wearer''s head in such a manner that said belt portion is retained in its adjusted position.
Inventors
- 👤 Albert Samuel Eriksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:11
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/005; F21V; F21V21/00; F21V21/08; F21V21/084; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1684; Y10T24/39; Y10T24/3987
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
A portable self-contained electric lamp capable of being mounted around a person''s head or other objects, comprising: a casing, a source of electric energy within said casing, a light emitting assembly including a bulb, a bulb holder and reflector means, switch means for connecting said bulb with said source of electric energy, a lid for closing said casing, a strap having one end thereof fixed to said lid, wherein said lid further comprises: retaining means for retaining a strap in a folded condition when not in use and means for adjustably holding said strap when said strap is used to mount said lamp to an object.
Claim 2
Dependent Claim
106 words
A portable self-contained electric lamp capable of being mounted around a person''s head or other objects, comprising: a casing, a source of electric energy within said casing, a light emitting assembly including a bulb, a bulb holder and reflector means, switch means for connecting said bulb with said source of electric energy, a lid for closing said casing, a strap having one end thereof fixed to said lid, wherein said lid further comprises: retaining means for retaining a strap in a folded condition when not in use and means for adjustably holding said strap when said strap is used to mount said lamp to an object.
Claim 3
Dependent Claim
15 words
A lamp as claimed in claim 1 wherein said source of electric energy comprises batteries.
Claim 4
Dependent Claim
40 words
a second unit comprising a lid adapted to fit onto the casing, said lid having an inner face and an outer face, said inner face having wall means extending away therefrom defining an open channel extending along said inner face,
Claim 5
Dependent Claim
40 words
a second unit comprising a lid adapted to fit onto the casing, said lid having an inner face and an outer face, said inner face having wall means extending away therefrom defining an open channel extending along said inner face,
Claim 6
Dependent Claim
27 words
a strap, having two ends, one of the ends being fixed to said lid, the other end being unsecured so as to permit adjustment of said strap,
Claim 7
Dependent Claim
27 words
a strap, having two ends, one of the ends being fixed to said lid, the other end being unsecured so as to permit adjustment of said strap,
Claim 8
Dependent Claim
35 words
A lamp as claimed in claim 1, wherein said lid has an inner face and an outer face, said retaining means comprises at least two walls attached to said inner face and extending interiorly thereof.
Claim 9
Dependent Claim
64 words
A lamp as claimed in claim 3 wherein said walls define an open channel extending along said inner surface, said channel being of a width equal to said strap and said walls being provided with a plurality of hook members projecting towards one another from the outer edge of said walls so as to hold said strap in a folded condition within said channel.
Claim 10
Dependent Claim
70 words
wherein said wall means defining said channel diverge towards the inner face so that the width of the channel along its open end is less than the width where said wall means meet the inner face and the width of said channel along the open end is less than the width of said strap so as to allow said strap to be retained in said channel when not in use,
Claim 11
Dependent Claim
70 words
wherein said wall means defining said channel diverge towards the inner face so that the width of the channel along its open end is less than the width where said wall means meet the inner face and the width of said channel along the open end is less than the width of said strap so as to allow said strap to be retained in said channel when not in use,
Claim 12
Dependent Claim
32 words
and wherein said lid further comprises means for adjustably holding said strap between said first unit and said second unit when in use around the object to which the light is secured.
Claim 13
Dependent Claim
32 words
and wherein said lid further comprises means for adjustably holding said strap between said first unit and said second unit when in use around the object to which the light is secured.
Claim 14
Dependent Claim
82 words
A lamp as claimed in claim 3 wherein said at least two walls diverge away from each other toward said inner face thereby defining an open ended channel extending along said inner face wherein the width of the open end of said channel is narrower than the width of said channel adjacent said inner surface, the width of said open end being less than the width of said strap so as to hold said strap in a folded condition within said channel.
Claim 15
Dependent Claim
86 words
A lamp as claimed in claim 1 wherein said adjustably holding means further comprises a side wall attached to said lid, recess means in said side wall for mating with said casing and defining openings through which said strap can pass so that when said strap is stored within said retaining means, said recess means mates with said casing, securing said lid thereto and when said strap is in use, said strap passes through said openings and is adjustably held between said casing and said lid.
Claim 16
Dependent Claim
11 words
An improved battery-operated light suitable for being fastened around objects comprising:
Claim 17
Dependent Claim
11 words
An improved battery-operated light suitable for being fastened around objects comprising:
References Cited (Backward Citations)
GB503368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |