Patent US3886047A successfully refreshed from Google Patents.
US3886047A
Expired / Lapsed
US
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Culture chamber
Assignee: Embrient Inc
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Filing: 1973-11-02
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Granted: 1975-05-27
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Expires: 1993-11-02
Abstract
Abstract An improved culture box is designed as a chamber with a circularly shaped base and lid with smoothly rounded concave interior surfaces for easy cleaning and added strength under pressure differentials. The base and lid are secured together by a single locking ring arranged to telescope over the lid and surround in overlapping relationship the engaged opposed portions of the base and lid. A slight rotation of the ring serves to lock cooperating portions on the base and lid together.
Inventors
- 👤 Jr James Otis Billups
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:14
CPC Classifications
C; C12; C12M; C12M25/00; C12M25/06; C12M23/00; C12M23/02; C12M23/10; C12M23/22; C12M23/38; C12M23/46
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A CULTURE CHAMBER COMPRISING IN COMBINATION: A. A CIRCULARLY SHAPED BASE HAVING A SMOOTHLY ROUNDED CONCAVE LOWER INTERIOR AND UPPER ANNULAR BASE EDGE; B. A CIRCULARLY SHAPED LID HAVING A SMOOTHLY ROUNDED CONCAVE UPPER INTERIOR AND LOWER ANNULAR LID EDGE DIMENSIONED TO SEAT ON SAID BASE EDGE; AND C. A LOCKING RING ARRANGED TO TELESCOPE OVER THE TOP OF SAID LID TO CIRCUMFERENTIALLY SURROUND IN OVERLAPPING RELATIONSHIP THE UPPER ANNULAR BASE EDGE AND LOWER ANNULAR LID EDGE, SAID UPPER ANNULAR BASE EDGE INCLUDING A PLURALITY
Claim 2
Dependent Claim
85 words
A CULTURE CHAMBER COMPRISING IN COMBINATION: A. A CIRCULARLY SHAPED BASE HAVING A SMOOTHLY ROUNDED CONCAVE LOWER INTERIOR AND UPPER ANNULAR BASE EDGE; B. A CIRCULARLY SHAPED LID HAVING A SMOOTHLY ROUNDED CONCAVE UPPER INTERIOR AND LOWER ANNULAR LID EDGE DIMENSIONED TO SEAT ON SAID BASE EDGE; AND C. A LOCKING RING ARRANGED TO TELESCOPE OVER THE TOP OF SAID LID TO CIRCUMFERENTIALLY SURROUND IN OVERLAPPING RELATIONSHIP THE UPPER ANNULAR BASE EDGE AND LOWER ANNULAR LID EDGE, SAID UPPER ANNULAR BASE EDGE INCLUDING A PLURALITY
Claim 3
Dependent Claim
31 words
A chamber according to claim 1, including an O-ring of the gland type between the opposed base edge and lid edge to provide an hermetic seal between the base and lid.
Claim 4
Dependent Claim
90 words
A chamber according to claim 1, in which said lid includes on its top, circumferentially spaced arcuate top coupling sections, each section including an exterior bead, and in which said base includes on its bottom circumferentially spaced arcuate bottom coupling sections, each section including an internal groove whereby a plurality of culture chambers may be stacked one on top of the other and coupled together by interdigitating the top and bottom coupling sections and then effecting a relative rotation of the chambers To cause the grooves to receive the beads.
Claim 5
Dependent Claim
30 words
A chamber according to claim 1, in which said base includes an annular smoothly-rounded step in its concave lower interior surface for indexing to a central position a culture support.
Claim 6
Dependent Claim
14 words
A chamber according to claim 1, in which said lid and base are transparent.
References Cited (Backward Citations)
US3248302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |