US3866566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauze pad impregnation between belts
Assignee: Pioneer Laboratories Inc
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Filing: 1972-09-28
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Granted: 1975-02-18
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Expires: 1992-09-28
Abstract
Abstract Individual gauze pads are fed between two moving and juxtaposed endless belts and medicant or impregnant material is applied to one of the belts and carried onto the pad as it is carried between the belts. Nip rolls are used to apply pressure to the belts at a zone where the pads are carried between the two belts so as to cause transfer of a predetermined amount of medicant to a pad.
Inventors
- 👤 Edward W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:54
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/00987; A61F13/00991
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
In an apparatus for impregnating a gauze pad, the combination including a first movable belt for supporting a pad to be impregnated, a second movable belt movable in close proximity to said first belt, nip roll means straddling said two belts comprising an upper and lower roll between which mating surfaces of said belts move, mEans feeding impregnant to said second of said belts, said first belt carrying said pad into contact with said second belt and through said nip roll means so that impregnant will be deposited on said pad, heating means in a zone adjacent said nip roll means, and means for adjusting the distance between said rolls in accordance with the predetermined quantity of impregnant to be placed on said pad.
Claim 2
Dependent Claim
124 words
In an apparatus for impregnating a gauze pad, the combination including a first movable belt for supporting a pad to be impregnated, a second movable belt movable in close proximity to said first belt, nip roll means straddling said two belts comprising an upper and lower roll between which mating surfaces of said belts move, mEans feeding impregnant to said second of said belts, said first belt carrying said pad into contact with said second belt and through said nip roll means so that impregnant will be deposited on said pad, heating means in a zone adjacent said nip roll means, and means for adjusting the distance between said rolls in accordance with the predetermined quantity of impregnant to be placed on said pad.
Claim 3
Dependent Claim
33 words
In an apparatus as claimed in claim 1 and including wiper means adjacent the lower nip roll on the side of the first belt away from the belt to which impregnant is applied.
Claim 4
Dependent Claim
19 words
In an apparatus as claimed in claim 1 wherein adjustable hopper means feeds impregnant to said first belt means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |