US4057168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vented test tube top
Assignee: Individual
•
Filing: 1975-07-07
•
Granted: 1977-11-08
•
Expires: 1995-07-07
Abstract
Abstract A vented top for a bacteria culture medium tube having a body with through openings to hold one or more tubes simultaneously. A cap closes off all openings or opens them together. Vent means enable automatic venting of gases generated by the bacteria.
Inventors
- 👤 Barry L. Bosshold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:32
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1633; B65D51/1644
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
A vented top for a test media container comprising: a holder body adapted to be grasped in the hand; a pair of openings through said body; means in each of said openings for gripping a laboratory test media container therein: a cap hingedly carried on said body for pivotal movement between a closed position covering said pair of openings and an open position displaced therefrom to enable access thereto; means on said cap for sealing off said openings in isolation from each other; and venting means on said cap for each of said openings enabling the release of gases from said each opening to the exterior.
Claim 2
Dependent Claim
106 words
A vented top for a test media container comprising: a holder body adapted to be grasped in the hand; a pair of openings through said body; means in each of said openings for gripping a laboratory test media container therein: a cap hingedly carried on said body for pivotal movement between a closed position covering said pair of openings and an open position displaced therefrom to enable access thereto; means on said cap for sealing off said openings in isolation from each other; and venting means on said cap for each of said openings enabling the release of gases from said each opening to the exterior.
Claim 3
Dependent Claim
39 words
The vented top defined by claim 1 wherein said venting means comprises: flexible diaphragm portions on said cap; each of said diaphragm portions being normally sealed around one of said opening but being flexed away therefrom by gas pressure.
Claim 4
Dependent Claim
40 words
The vented top defined by claim 2 including: exhaust passages through said body from adjacent said openings to the exterior of said body; and a plug on each of said diaphragm portions normally received in one of said exhaust passages.
Claim 5
Dependent Claim
88 words
The vented top defined by claim 1 including: an upright barrier extending across said body intermediate said openings; said cap being in gas tight sealing engagement around said body and with and along said barrier when in said closed position; said venting means comprising; an opening through said cap on each side of said barrier; a flap member hinged to said body adjacent each of said openings when said cap is in closed position; and a plug on each of said flap members receivable in said each opening.
Claim 6
Dependent Claim
36 words
The vented top defined by claim 1 including: a deflector member on said body adjacent within one of said openings at one side thereof and extending partially thereacross to restrain exit of liquids and gels therefrom.
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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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |