US3657069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treatment of sheet-like material
Assignee: Individual
•
Filing: 1969-12-18
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Granted: 1972-04-18
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Expires: 1989-12-18
Abstract
Abstract A sheet-like material such as a paper web or fabric web is treated with a fluid, for example, hot air or liquid dye. The material is carried by a permeable felt wire on which it is subjected to both pressure and direct fluid flow from a movable nozzle element. The nozzle element includes an endless support member driven by a pair of rollers and an outer flexible, chambered belt or sheet. The chambers of the flexible belt are provided with inlets through which the treating fluid, under pressure, is delivered thereto. The chambers are further provided with outlets or openings which allow the treating fluid to pass from the chambers. A porous sheet or belt is placed and secured around the flexible, chambered belt. In operation the sheet-like material passes through the apparatus on the permeable wire with the nozzle element moving in unison therewith. The treating fluid passes from the chambered belt, through the porous sheet into the material, with the pressure from the treating fluid maintaining the flexible belt, the porous sheet and material in a substantially sealed relation throughout the apparatus.
Inventors
- 👤 Robert R Candor
- 👤 James T Candor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/50; D21F; D21F1/00; D21F1/48; D21H5/00; D21H5/0005; D21H5/0047
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
47 words
Apparatus as set forth in claim 1 wherein said means for causing said direct fluid flow comprises means for directing said fluid under pressure to said nozzle means and out through said opening means thereof and through said porous sheet means into said particular section of material.
Claim 2
Dependent Claim
28 words
Apparatus as set forth in claim 1 wherein said porous sheet means is a felt sheet means and wherein said permeable sheet means is another felt sheet means.
Claim 3
Dependent Claim
31 words
Apparatus as set forth in claim 1 wherein said engaging means and said nozzle means convey said section of material in a substantially straight line length of travel through said apparatus.
Claim 4
Dependent Claim
27 words
Apparatus as set forth in claim 1 wherein said engaging means comprises supporting means for receiving said material thereon and for conveying the same through said apparatus.
Claim 5
Dependent Claim
278 words
Method for treating sheet-like material comprising the steps of providing an engaging means that includes a permeable sheet means for engaging said material to at least assist in conveying said material in substantially sheet form, causing said material to have a section thereof disposed between an end means of a movable nozzle means at least partially covered at least part of the time by a flexible, porous sheet means and said engaging means while said end means is covered by said porous sheet means to move in unison with said nozzle means and said porous sheet means and said engaging means for a predetermined length of travel, moving said end means of said nozzle means and said porous sheet means in substantially sealed relation with said section of material during said predetermined length of travel of said section of material, and creating a direct fluid flow through at least one opening in said end means of said nozzle means and through said porous sheet means and into said section of material aligned between said porous sheet means and said engaging means to treat said section of material with said fluid, said step of moving said end means of said nozzle means and said porous sheet means in substantially sealed relation with said section of material comprising the step of creating a pressure differential across a flexible sheet means of said nozzle means and that includes said opening thereof and defines said end means and said porous sheet means to cause one side of said flexible sheet means and said porous sheet means to tend to press against said material and thereby press said material against said engaging means.
Claim 6
Dependent Claim
48 words
A method as set forth in claim 6 wherein said step for creating said direct fluid flow comprises the step of directing said fluid under pressure to said nozzle means and out through said opening thereof and through said porous sheet means into said pArticular section of material.
Claim 7
Dependent Claim
29 words
A method as set forth in claim 6 wherein said porous sheet means is a felt sheet means and wherein said permeable sheet means is another felt sheet means.
Claim 8
Dependent Claim
71 words
A method as set forth in claim 6 wherein said step of causing said material to have a section thereof disposed between said end means of said movable nozzle means and said engaging means includes the step of conveying said section of material in a substantially straight line length of travel in a particular direction as said nozzle means, porous sheet means, engaging means and section of material move in unison.
Claim 9
Dependent Claim
37 words
A method as set forth in claim 6 wherein said engaging means comprises supporting means and including the steps of disposing said material on said supporting means, and moving said supporting means to convey said supported material.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |