US4038974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing a germ-free air flow in the vicinity of an operating table
Assignee: Pielkenrood Vinitex BV
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Filing: 1976-04-09
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Granted: 1977-08-02
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Expires: 1996-04-09
Abstract
Abstract An apparatus for producing a germ-free air flow in the vicinity of an operating table, comprising a coherent unit of a blower, filter means and air discharge pipes, which unit is to be positioned below an operating table in such a manner that the air discharge pipes extend below the lateral edges of the table, said pipes being provided with apertures adapted for directing air flows in a laterally downward direction.
Inventors
- 👤 Simon Pielkenrood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; A61G13/108; A47; A47B; A47B2200/00; A47B2200/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
An apparatus, including a filter and a blower connected to the filter for driving air through it, to produce a substantially germ-free air flow in the vicinity of an operating table, and apparatus comprising: two tubes, connected to the filter and having air discharge openings for producing a generally laterally downwardly directed flow of air, said two tubes extending generally parallel to the lateral edges of the operating table and located along with the filter and the blower beneath the operating table.
Claim 2
Independent Claim
82 words
An apparatus, including a filter and a blower connected to the filter for driving air through it, to produce a substantially germ-free air flow in the vicinity of an operating table, and apparatus comprising: two tubes, connected to the filter and having air discharge openings for producing a generally laterally downwardly directed flow of air, said two tubes extending generally parallel to the lateral edges of the operating table and located along with the filter and the blower beneath the operating table.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 futher comprising suspension means for suspending the filter and blower from the operating table.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2 wherein said suspension means further comprises straps of adjustable length.
Claim 5
Dependent Claim
37 words
The apparatus of claim 1 further comprising a cart-like undercarriage on which the blower, the filter and said two tubes are carried, whereby the apparatus can be selectively positioned beneath and removed from beneath the operating table.
Claim 6
Dependent Claim
17 words
The apparatus of claim 1 wherein the blower and the filter are located between said two tubes.
Claim 7
Dependent Claim
26 words
The apparatus of claim 1 further comprising a laterally-extending manifold tube connecting the filter to said two tubes to distribute filtered air to said two tubes.
Claim 8
Dependent Claim
22 words
The apparatus of claim 6 wherein said laterally-extending manifold tube is attached to each of said two tubes substantially at their mid-points.
Claim 9
Dependent Claim
29 words
The apparatus of claim 6 wherein said laterally-extending manifold tube is attached to each of said two tubes at one end thereof to form a generally U-shaped tubular structure.
Claim 10
Dependent Claim
16 words
The apparatus of claim 6 wherein said laterally-extending manifold tube is provided with air discharge openings.
Claim 11
Dependent Claim
39 words
The apparatus of claim 1 wherein the blower is operable at more than one speed including a maximum speed adequate to cause a predetermined rate of air discharge even when the filter is soiled to a predetermined maximum extent.
References Cited (Backward Citations)
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US3505989A
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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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |