Patent US3788560A successfully refreshed from Google Patents.
US3788560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: GTE Sylvania Inc
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Filing: 1972-10-16
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Granted: 1974-01-29
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Expires: 1992-10-16
Abstract
Abstract An ultraviolet lighting source for curing organic coatings is disclosed herein. The high intensity lamp of the fixture is held in a temperature resistant lamp holder that allows the lamp freedom for expansion and contraction. Also, a shield is provided to protect the critical lamp seal from the high operating temperatures generated by the lamp.
Inventors
- 👤 H Hough
- 👤 J Wierzbicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:20
CPC Classifications
F; F21; F21V; F21V29/00; F21V29/50; F21V29/70; F21V29/74; B; B41; B41F; B41F23/00; B41F23/04; B41F23/0403; B41F23/0406; B41F23/0409; F21V15/00; F21V15/01; F21V15/04; F21V19/00; F21V19/0075; F21V19/008; F21V29/15; H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18; H01J61/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
A lighting fixture for the rapid curing of UV curable resins comprising: an elongated elliptical curved housing; end caps detachably secured to the ends of said housing; safety interlocks secured to said end caps; a series of separate slip-in reflectors positioned in said housing, the reflectors being spaced apart sufficiently to permit expansion thereof during normal operation; a lamp holder located at each end of said housing; an elongated tubular UV emitting arc discharge lamp disposed at the focal point of the elliptical housing and having tubular seals at its ends, said tubular seals being loosely held by said holders so as to permit longitudinal expansion of the lamp during operation; a ceramic sleeve fastened to each tubular seal of the lamp; a retainer fastened to each lamp holder, said retainer having an opening larger than the tubular seals but smaller than the ceramic sleeve in order to limit longitudinal movement of the lamp; and a shield positioned between each of said tubular seals and the main portion of the lamp.
Claim 2
Dependent Claim
171 words
A lighting fixture for the rapid curing of UV curable resins comprising: an elongated elliptical curved housing; end caps detachably secured to the ends of said housing; safety interlocks secured to said end caps; a series of separate slip-in reflectors positioned in said housing, the reflectors being spaced apart sufficiently to permit expansion thereof during normal operation; a lamp holder located at each end of said housing; an elongated tubular UV emitting arc discharge lamp disposed at the focal point of the elliptical housing and having tubular seals at its ends, said tubular seals being loosely held by said holders so as to permit longitudinal expansion of the lamp during operation; a ceramic sleeve fastened to each tubular seal of the lamp; a retainer fastened to each lamp holder, said retainer having an opening larger than the tubular seals but smaller than the ceramic sleeve in order to limit longitudinal movement of the lamp; and a shield positioned between each of said tubular seals and the main portion of the lamp.
Claim 3
Dependent Claim
105 words
The fixture according to claim 1 wherein each of said lamp holders comprises an upper portion fixed to said housing and a detachable bottom mating portion secured to said upper portion, said upper portion being provided with a V-notched relief and said lower portion being provided with a wedge mating to the V-notch relief of said upper portion, said wedge of said lower portion being provided with a V-notch smaller than the V-notch in said upper portion whereby a diamond shaped relief slot is established when said lower portion is mated to said upper portion for receiving said tubular seals and thereby supporting said lamp.
Claim 4
Dependent Claim
41 words
The fixture according to claim 1 wherein said shield is provided with a slot larger than said tubular lamp seal ends and a door pivotally mounted on said shield and positioned to cover a portion of said slot in said shield.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |