US3782265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Assembly for separating a dust-free part from a space, and method for disinfecting the same
Assignee: Pielkenrood Vinitex BV
•
Filing: 1971-05-05
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Granted: 1974-01-01
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Expires: 1991-05-05
Abstract
Abstract An assembly of tent-like units for isolating patients, each unit comprising four columns supporting an air supply chamber and pliable side walls, the air supply chamber being designed for producing a uniform downward air flow in the unit in question for keeping out dust at the lower side of the pliable side walls. Such units may be coupled with one another at corresponding side walls or with auxiliary devices for transferring objects to and from such units. The inner space of such an assembly may be disinfected unit by unit by closing the connection between the unit to be disinfected and an adjacent unit so that a patient should not be removed from the assembly during disinfection.
Inventors
- 👤 J Pielkenrood
- 👤 Galen P Van
- 👤 Nes J Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:09
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; A61G13/108; A61G10/00; A61G10/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
205 words
An assembly for making a dust-free space and isolating it from its surroundings for nursing a bed patient, comprising a frame set upon the floor and including corner posts interconnected at their upper ends by a top closure including an air supply chamber having a perforated bottom wall, imperforate side walls suspended from the frame so the bottoms of the walls are spaced from the floor to provide a peripheral gap for the escape of air, means minimizing air flow between the walls and the frame and between the walls and the top closure, blower means drawing air from outside the enclosed space and delivering the air to said air supply chamber, air filter means operative to filter the air before it leaves said air supply chamber through the perforated bottom wall, said space having a positive air pressure with a downward air flow leaving the enclosed space through the gap between the walls and the floor, at least one of the side walls being flexible and slidably suspended from the frame, at least one of the side walls being provided with air lock means permitting objects to be moved into and removed from the space without introducing dust bearing outside air into the space.
Claim 2
Dependent Claim
205 words
An assembly for making a dust-free space and isolating it from its surroundings for nursing a bed patient, comprising a frame set upon the floor and including corner posts interconnected at their upper ends by a top closure including an air supply chamber having a perforated bottom wall, imperforate side walls suspended from the frame so the bottoms of the walls are spaced from the floor to provide a peripheral gap for the escape of air, means minimizing air flow between the walls and the frame and between the walls and the top closure, blower means drawing air from outside the enclosed space and delivering the air to said air supply chamber, air filter means operative to filter the air before it leaves said air supply chamber through the perforated bottom wall, said space having a positive air pressure with a downward air flow leaving the enclosed space through the gap between the walls and the floor, at least one of the side walls being flexible and slidably suspended from the frame, at least one of the side walls being provided with air lock means permitting objects to be moved into and removed from the space without introducing dust bearing outside air into the space.
Claim 3
Dependent Claim
47 words
An assembly according to claim 1 including a raised platform inside the dust-free space and sized slightly smaller than the enclosed floor area to define a peripheral space between the platform and the side walls and leading to the gap between the side walls and the floor.
Claim 4
Dependent Claim
50 words
An assembly according to claim 1 interconnected to an adjacent like assembly whereby both assemblies have a common wall which may be opened for movement between the units or closed for isolating the units from each other whereby one may be disinfected while the other is occupied and vice versa.
Claim 5
Dependent Claim
24 words
An assembly according to claim 2 in which the raised platform contains an exhaust blower and filters for deactivating disinfectant introduced into the unit.
Claim 6
Dependent Claim
49 words
An assembly according to claim 1 including an enclosed workbench outside the unit and separately supplied with pressurized filtered air, means for placing materials into the bench from outside the bench and means providing access to the inside of the bench from inside the assembly providing the dust-free space.
Claim 7
Dependent Claim
51 words
An assembly according to claim 1 in which said flexible side wall is suspended for sliding movement along the side of the bed and is provided with glove means permitting a worker on the exterior of the enclosed space to manipulate objects within the space along the length of the bed.
Claim 8
Dependent Claim
27 words
An assembly according to claim 4 including spaced suction inlets to the raised platform and stop means preventing the side walls from being drawn against the inlets.
References Cited (Backward Citations)
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US2912918A
Cited
US3294480A
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US3367257A
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |