US3971644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and detoxification tank with filtration system
Assignee: Wal-Gen Corp
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Filing: 1974-08-28
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Granted: 1976-07-27
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Expires: 1994-08-28
Abstract
Abstract A mixing tank and filtration system for operating room use. The tank is utilized for mixing a cement that is employed in reconstructing joints such as the hip joint, and mixing must take place in the operating room because the cement sets up in a very short time. The only presently approved cement gives off toxic fumes during the mixing which fumes frequently have a detrimental effect on the patient and operating room personnel. The mixing tank and filtration system disclosed herein are constructed and arranged to contain and draw off the toxic fumes whereby the detrimental effects on personnel are eliminated.
Inventors
- 👤 Edward D. Sugarman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:12
CPC Classifications
B; B01; B01L; B01L1/00; A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8802; A61B17/8805; A61B17/8827; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2002/4685; B01F; B01F2101/00; B01F2101/20; B01F33/00; B01F33/50; B01F33/501; B01F33/5011
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
162 words
For use with a hospital vacuum source, operating room mixing and detoxification apparatus comprising a tank having a bottom, side walls and a removable top, at least the side walls and top of the tank being made of transparent material, the tank being particularly adapted for mixing a cement that gives off toxic fumes during the mixing, the top of the tank being formed with a pair of open arm holes through which the arms of an operator can extend downwardly into the tank interior to do the mixing, the holes being dimensioned so as to encircle the operator's arms with a close but non-sealing fit whereby ambient room air can pass through the holes around the operator's arms and assist in flushing toxic fumes out of the tank, and filtration means for the tank, the tank having at least one exhaust port located adjacent the bottom thereof, the exhaust port being connected through the filtration means to the hospital vacuum source.
Claim 2
Dependent Claim
162 words
For use with a hospital vacuum source, operating room mixing and detoxification apparatus comprising a tank having a bottom, side walls and a removable top, at least the side walls and top of the tank being made of transparent material, the tank being particularly adapted for mixing a cement that gives off toxic fumes during the mixing, the top of the tank being formed with a pair of open arm holes through which the arms of an operator can extend downwardly into the tank interior to do the mixing, the holes being dimensioned so as to encircle the operator's arms with a close but non-sealing fit whereby ambient room air can pass through the holes around the operator's arms and assist in flushing toxic fumes out of the tank, and filtration means for the tank, the tank having at least one exhaust port located adjacent the bottom thereof, the exhaust port being connected through the filtration means to the hospital vacuum source.
Claim 3
Dependent Claim
42 words
Apparatus as defined in claim 1 wherein said closed receptacle contains activated carbon and water, said inlet and outlet ports being arranged so that gases drawn into the receptacle from said tank pass through the carbon and water before leaving the receptacle.
References Cited (Backward Citations)
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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) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |