Patent US2699537A successfully refreshed from Google Patents.
Patent US3559816A successfully refreshed from Google Patents.
US3559816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for positioning the wheeled carriage of a crane or the like cargo handling machine
Assignee: Individual
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Filing: 1968-09-26
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Granted: 1971-02-02
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Expires: 1988-09-26
Abstract
Abstract A method for positioning the wheeled carriage of a crane or the like cargo-handling machine in which a spotlight device is mounted on said carriage and the carriage is positioned so that the focus of a ray of light from said spotlight device may be positioned right below the carriage. A mechanism for positioning the wheeled carriage of a crane or the like cargo-handling machine comprising a spotlight device mounted on said carriage and supporting an electric lamp having bases at the ends therein, said spotlight device being provided with cooling air passages which are effective to cool the bases thereby to positively cool the bases while cooling the lamp body itself to a lesser degree.
Inventors
- 👤 Kiyotaka Hirata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:55
CPC Classifications
F; F21; F21V; F21V33/00; B; B66; B66C; B66C13/00; B66C13/18; B66C13/46; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/017
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
238 words
The combination of a spotlight device on a winch-carrying wheeled carriage having cargo-carrying means, the invention comprising: a mounting member to mount said spotlight device on said carriage to position its ray of light at a point of contact between the cargo-carrying means and the cargo to be carried thereby; a hollow cylindrical member supported on said mounting member; double base bulb light emitting means having a base in said mounting member and in said hollow member respectively; said cylindrical member having lens means supported therein and a pin point opening in said cylindrical member between said lens and light emitting means to permit a pin point ray of light from said light emitting means to pass through said lens means to focus the ray of light at said point of contact between the cargo-carrying means and the cargo to be carried thereby; said mounting member and hollow cylindrical member each being provided with air holes to direct cooling air at the base of said double base bulb mounted in said respective member; and a cooling fan on said spotlight device directly above said mounting member and directing a flow of cooling air through said air holes in said mounting member and said hollow cylindrical member toward said bases respectively of said bulb in said mounting member and cylindrical member in sequence to cool said bases without directing the air at the bulb body to cool the same.
Claim 2
Dependent Claim
238 words
The combination of a spotlight device on a winch-carrying wheeled carriage having cargo-carrying means, the invention comprising: a mounting member to mount said spotlight device on said carriage to position its ray of light at a point of contact between the cargo-carrying means and the cargo to be carried thereby; a hollow cylindrical member supported on said mounting member; double base bulb light emitting means having a base in said mounting member and in said hollow member respectively; said cylindrical member having lens means supported therein and a pin point opening in said cylindrical member between said lens and light emitting means to permit a pin point ray of light from said light emitting means to pass through said lens means to focus the ray of light at said point of contact between the cargo-carrying means and the cargo to be carried thereby; said mounting member and hollow cylindrical member each being provided with air holes to direct cooling air at the base of said double base bulb mounted in said respective member; and a cooling fan on said spotlight device directly above said mounting member and directing a flow of cooling air through said air holes in said mounting member and said hollow cylindrical member toward said bases respectively of said bulb in said mounting member and cylindrical member in sequence to cool said bases without directing the air at the bulb body to cool the same.
Claim 3
Dependent Claim
41 words
A spotlight device as in claim 1: a reflector in said cylindrical member to reflect the light rays of said bulb; and a holder to hold said reflector and bulb integrally secured together and to said holder In said cylindrical member.
Claim 4
Dependent Claim
22 words
A spotlight device as in claim 2, said holder having air holes defined therein to permit the passage of cooling air therethrough.
Claim 5
Dependent Claim
31 words
A spotlight device as in claim 2, said holder unitarily mounting said reflector and bulb, and means between said holder and reflector urging said reflector into reflecting relation with said bulb.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |