US3584927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biology study enclosure
Assignee: EH Sheldon and Co
•
Filing: 1969-07-10
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Granted: 1971-06-15
•
Expires: 1989-07-10
Abstract
Abstract An enclosure for the study of biology including a generally rectangular casing having a front access door, a space at the bottom of the enclosure arranged to receive a fan or cooling unit, with air therefrom being delivered through vertical ducts at the enclosure sides, the enclosure also being suitable for photoperiodic use by virtue of having fluorescent lights therein at different levels arranged to deliver light in different spectral ranges.
Inventors
- 👤 Donald E Ott
- 👤 Arthur W Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/02; A01C1/025; A01K; A01K1/00; A01K1/02; A01K1/03; A01K1/031; A01K1/0313; B; B01; B01L; B01L1/00; B01L1/02; F; F24; F24F; F24F5/00; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
Biological study equipment comprising a rectangular cabinet having rear, bottom, top and sidewalls and having a front equipped with transparent doors and providing a hollow interior chamber, fluorescent light means mounted at the top of said chamber for delivering light in two spectral ranges, spaced tray support means in said chamber, at least one tray on one of said support means intermediate the height of said chamber and equipped with a transverse panel, fluorescent light tubEs below said panel and carried in the bottom of said tray for delivering light in a third spectral range in a direction below said tray, and control means operatively connected with said chamber for selectively controlling the light means whereby a plurality of biological experiments can be performed simultaneously, the interior surfaces of said walls are formed of light-reflective material.
Claim 2
Dependent Claim
136 words
Biological study equipment comprising a rectangular cabinet having rear, bottom, top and sidewalls and having a front equipped with transparent doors and providing a hollow interior chamber, fluorescent light means mounted at the top of said chamber for delivering light in two spectral ranges, spaced tray support means in said chamber, at least one tray on one of said support means intermediate the height of said chamber and equipped with a transverse panel, fluorescent light tubEs below said panel and carried in the bottom of said tray for delivering light in a third spectral range in a direction below said tray, and control means operatively connected with said chamber for selectively controlling the light means whereby a plurality of biological experiments can be performed simultaneously, the interior surfaces of said walls are formed of light-reflective material.
Claim 3
Dependent Claim
20 words
The structure of claim 1 in which said fluorescent light means are provided with ballast means for heating said chamber.
Claim 4
Dependent Claim
14 words
The structure of claim 2 in which said panel is provided with airflow apertures.
Claim 5
Dependent Claim
22 words
The structure of claim 1 in which said tray is provided with an upstanding perimetric lip forming sides enclosing said light tubes.
References Cited (Backward Citations)
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US3447892A
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |