US3717434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autoclave
Assignee: Individual
•
Filing: 1971-08-19
•
Granted: 1973-02-20
•
Expires: 1991-08-19
Abstract
Abstract An autoclave, particularly adapted for use as a sterilizer, and in which the functions of steam generation and sterilization are performed in separate steam generating and autoclaving chambers, with provision for controlled delivery of steam from the generating chamber to the autoclaving chamber. A feed water system is also provided incorporating a receptacle for receiving sequential batches of feed water and for heating such batches to a temperature providing a pressure adequate to deliver the batch into the steam generating chamber. The equipment further includes a closure for the autoclaving chamber and means interlocking the operation of the closure with the function of transfer of steam from the generating chamber to the autoclaving chamber. The closure for the autoclaving chamber is in the form of a sliding door mounted adjacent to the access opening into the autoclaving chamber in a manner providing for sealing of the door under the influence of the pressure of the steam introduced into the autoclaving chamber from the steam generating chamber.
Inventors
- 👤 R Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/04; A61L2/06; A61L2/07; A61L2/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
Sterilization equipment comprising a sterilizing chamber having space therein for receiving articles to be sterilized, a connection communicating with said chamber below said space, steam supply means including a steam supply valve operably connected to said connection for admitting steam into the chamber through said connection, steam exhaust means including an exhaust valve operably connected to said connection for exhausting steam from the chamber through said connection, an air discharge connection communicating with the autoclaving chamber above said space, and a valve in said air discharge connection with thermally operating means for closing the air discharge connection upon passage of steam from the chamber through the air discharge connection.
Claim 2
Dependent Claim
109 words
Sterilization equipment comprising a sterilizing chamber having space therein for receiving articles to be sterilized, a connection communicating with said chamber below said space, steam supply means including a steam supply valve operably connected to said connection for admitting steam into the chamber through said connection, steam exhaust means including an exhaust valve operably connected to said connection for exhausting steam from the chamber through said connection, an air discharge connection communicating with the autoclaving chamber above said space, and a valve in said air discharge connection with thermally operating means for closing the air discharge connection upon passage of steam from the chamber through the air discharge connection.
Claim 3
Dependent Claim
109 words
Sterilization equipment comprising a sterilizing chamber having space therein for receiving articles to be sterilized, a connection communicating with said chamber below said space, steam supply means including a steam supply valve operably connected to said connection for admitting steam into the chamber through said connection, steam exhaust means including an exhaust valve operably connected to said connection for exhausting steam from the chamber through said connection, an air discharge connection communicating with the autoclaving chamber above said space, and a valve in said air discharge connection with thermally operating means for closing the air discharge connection upon passage of steam from the chamber through the air discharge connection.
Claim 4
Dependent Claim
109 words
Sterilization equipment comprising a sterilizing chamber having space therein for receiving articles to be sterilized, a connection communicating with said chamber below said space, steam supply means including a steam supply valve operably connected to said connection for admitting steam into the chamber through said connection, steam exhaust means including an exhaust valve operably connected to said connection for exhausting steam from the chamber through said connection, an air discharge connection communicating with the autoclaving chamber above said space, and a valve in said air discharge connection with thermally operating means for closing the air discharge connection upon passage of steam from the chamber through the air discharge connection.
Claim 5
Dependent Claim
26 words
Equipment as defined in claim 1 and further including a perforated steam distributing plate in the sterilizing chamber above the steam connection at the bottom thereof.
Claim 6
Dependent Claim
51 words
Equipment as defined in claim 1 in which the steam supply means further includes a steam generating chamber connected to deliver steam through the steam supply valve into the sterilizing and the equipment further including a steam condensing chamber into which the exhausted steam is delivered through the steam exhaust valve.
Claim 7
Dependent Claim
23 words
Equipment as defined in claim 3 and further including a connection for delivering condensate from the condensing chamber to the steam generating chamber.
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |