Patent US829360A successfully refreshed from Google Patents.
Patent US3752186A successfully refreshed from Google Patents.
US3752186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venting device and method for anesthetic administration
Assignee: Dryden Corp
•
Filing: 1970-10-09
•
Granted: 1973-08-14
•
Expires: 1990-10-09
Abstract
Abstract A valve assembly in a circle absorber system includes a removable plug to permit limited escape of gases from the absorber system, and a manually adjustable body accommodating escape of additional volumes of gas as determined by adjustable registry of vent openings therein. A valve assembly cover is provided with a fitting connectible to a vacuum system to facilitate disposition of vented gases outside of the operating room environment.
Inventors
- 👤 G Dryden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:16
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0087; A61M16/009; A61M16/22; A61M2209/00; A61M2209/08; A61M2209/082; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87909
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
159 words
A valve assembly comprising: a mount having a first generally cylindrical wall surface with first opening means therein, a body having a second generally cylindrical wall surface thereon received around said first wall surface, said second wall surface having seconD opening means therein, said body being fitted on said mount and manually rotatable on colinear axes of said generally cylindrical surfaces for varying degrees of registry between the said first and second opening means, the said first opening means of said mount communicating with a first chamber to be vented, said body having cover receiver means thereon, said generally cylindrical wall surfaces being slightly tapered and disposed in facing rotatably sliding relationships whereby said body is supported on said mount, an internal elongated passageway in said body, said passageway having an aperture in each end; a valve movable longitudinally in said passageway and capable of positioning at said end apertures alternately, and capable of closing one of said apertures.
Claim 2
Dependent Claim
159 words
A valve assembly comprising: a mount having a first generally cylindrical wall surface with first opening means therein, a body having a second generally cylindrical wall surface thereon received around said first wall surface, said second wall surface having seconD opening means therein, said body being fitted on said mount and manually rotatable on colinear axes of said generally cylindrical surfaces for varying degrees of registry between the said first and second opening means, the said first opening means of said mount communicating with a first chamber to be vented, said body having cover receiver means thereon, said generally cylindrical wall surfaces being slightly tapered and disposed in facing rotatably sliding relationships whereby said body is supported on said mount, an internal elongated passageway in said body, said passageway having an aperture in each end; a valve movable longitudinally in said passageway and capable of positioning at said end apertures alternately, and capable of closing one of said apertures.
Claim 3
Dependent Claim
22 words
The assembly of claim 1 wherein said valve is a ball and said body is transparent for visibility of said ball therein.
Claim 4
Dependent Claim
24 words
The assembly of claim 1 wherein: said body has a cap thereon with a stem projecting through one of said apertures into said passageway.
Claim 5
Dependent Claim
165 words
A valve assembly comprising: a mount having a first generally cylindrical wall surface with first opening means therein, a body having a second generally cylindrical wall surface thereon received around said first wall surface, said second wall surface having second opening means therein, said body being fitted on said mount and manually rotatable on colinear axes of said generally cylindrical surfaces for varying degrees of registry between the said first and second opening means, the said first opening means of said mount communicating with a first chamber to be vented, said body having cover receiver means thereon, said generally cylindrical wall surfaces being slightly tapered and disposed in facing rotatably sliding relationship whereby said body is supported on said mount, a cover received on said cover receiver and providing a second chamber, said second opening means in said body communicating with said second chamber and cooperating with said first opening means in said mount to vent gases from said first chamber to said second chamber.
Claim 6
Dependent Claim
165 words
A valve assembly comprising: a mount having a first generally cylindrical wall surface with first opening means therein, a body having a second generally cylindrical wall surface thereon received around said first wall surface, said second wall surface having second opening means therein, said body being fitted on said mount and manually rotatable on colinear axes of said generally cylindrical surfaces for varying degrees of registry between the said first and second opening means, the said first opening means of said mount communicating with a first chamber to be vented, said body having cover receiver means thereon, said generally cylindrical wall surfaces being slightly tapered and disposed in facing rotatably sliding relationship whereby said body is supported on said mount, a cover received on said cover receiver and providing a second chamber, said second opening means in said body communicating with said second chamber and cooperating with said first opening means in said mount to vent gases from said first chamber to said second chamber.
Claim 7
Dependent Claim
38 words
The assembly of claim 4 wherein: said cover receiver means are positioned to accommodate simultaneous turning of said body with said cover to vary the degree of registry of said second opening means with said first opening means.
Claim 8
Dependent Claim
22 words
The assembly of claim 4 wherein: said cover has an outlet thereon for evacuation of said vented gases from said second chamber.
Claim 9
Dependent Claim
38 words
The assembly of claim 6 wherein: said cover receiver means has inlet vent means therein located such that said second opening means in said body are adjacent a flow path from said inlet vent means to said outlet.
References Cited (Backward Citations)
US2434215A
Cited
US1088817A
Cited
US1504498A
Cited
US2632467A
Cited
US2832562A
Cited
US2854027A
Cited
US2996083A
Cited
US3110322A
Cited
US3185179A
Cited
US3572385A
Cited
US3542336A
Cited
US3575210A
Cited
US3582090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |