US3751653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerated display case
Assignee: JEPSON Corp A CORP OF
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Filing: 1971-06-04
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Granted: 1973-08-07
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Expires: 1991-06-04
Abstract
Abstract A refrigerated case and display lamp arrangement is provided which case may be alternately cooled and heated for defrosting purposes. An elongated tubular fluorescent lamp is mounted within the case and is provided with tubular jacket spaced coaxially thereabout. Elastomeric support members are disposed at either end of the lamp to hold the jacket in a particular spaced relationship with respect to the lamp. Axially extending grooves are formed in a radial face of each support member to receive the terminal edges of the tubular jacket. The outer surface of each supporting member is formed with a circumferentially extending recess for receiving a steel ring which biases axially extending surfaces of each supporting member into pressure engagement with both the tubular jacket and a glass portion of the fluorescent lamp. A spacer member may be positioned about the fluorescent lamp approximately at the mid-span thereof for insuring a constant spaced relationship between the jacket and the lamp along the entire length thereof.
Inventors
- 👤 J Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:57
CPC Classifications
A; A47; A47F; A47F11/00; A47F11/06; A47F11/10; A47F3/00; A47F3/001; A47F3/04; A47F3/0439; A47F3/0443; A47F3/0447; F; F25; F25D; F25D27/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
A refrigerated display case comprising: a. Means for providing a cold air curtain: b. Lighting means disposed within said air curtain for illuminating an interior of said display case; and c. Said lighting means comprising, An elongated tubular fluorescent lamp having a rating in the range of 500 to 2,000 ma., An elongated transparent tubular jacket supported coaxially about said lamp to define an annular dead air space, Elastomeric support members disposed at either end of said lamp for holding said jacket in spaced relationship with respect to said lamp, and Biasing means for forcibly urging axially extending surfaces of said support means into pressure contact with inner and outer surfaces of said jacket and an outer glass surface of said lamp to form a hermetical seal for the annular dead air space
Claim 2
Dependent Claim
133 words
A refrigerated display case comprising: a. Means for providing a cold air curtain: b. Lighting means disposed within said air curtain for illuminating an interior of said display case; and c. Said lighting means comprising, An elongated tubular fluorescent lamp having a rating in the range of 500 to 2,000 ma., An elongated transparent tubular jacket supported coaxially about said lamp to define an annular dead air space, Elastomeric support members disposed at either end of said lamp for holding said jacket in spaced relationship with respect to said lamp, and Biasing means for forcibly urging axially extending surfaces of said support means into pressure contact with inner and outer surfaces of said jacket and an outer glass surface of said lamp to form a hermetical seal for the annular dead air space
Claim 3
Dependent Claim
36 words
A refrigerated display case according to claim 1 wherein; The ratio of the inside diameter Of said jacket with respect to the outside diameter of said lamp is in the range of 4:3 to 5: 3.
Claim 4
Dependent Claim
19 words
A refrigerated display case according to claim 2 wherein; Said elongated transparent tubular jacket consists of a plastic material.
Claim 5
Dependent Claim
57 words
A refrigerated display case according to claim 3 wherein said elastomeric support member comprises: a. A generally cylindrical body; b. A recess formed axially within said body for receiving an axial end of said lamp; and c. An annular groove formed in one radial face of said body for receiving an axial end of said tubular jacket.
Claim 6
Dependent Claim
17 words
A refrigerated display case according to claim 4 wherein; Said Biasing means consists of a ring member.
Claim 7
Dependent Claim
31 words
A refrigerated display case according to claim 5 wherein; An annular groove is formed in an outer cylindrical surface of each of said elastomeric support members for retaining said ring member.
Claim 8
Dependent Claim
33 words
A refrigerated display case according to claim 6 wherein said ring is of a generally continuous configuration and said annular groove for retaining said ring member is of a generally semi-circular cross-sectional configuration.
Claim 9
Dependent Claim
28 words
A refrigerated display case according to claim 6 wherein; The axial length of said jacket is greater than the axial length of a glass portion of said lamp.
Claim 10
Dependent Claim
42 words
A refrigerated display case according to claim 6 wherein; Said annular groove formed in one radial face of said cylindrical body of each said elastomeric support member is generally defined by two mutually converging furstoconical surfaces extending generally axially of said body.
Claim 11
Dependent Claim
43 words
A refrigerated display case according to claim 6 wherein; A ring-like support member is disposed transversely about said lamp mid-span the terminal ends thereof to prevent sagging of said plastic jacket into contact with said lamp upon heating of said annular air space.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |