US3633282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-removing apparatus and method
Assignee: Individual
•
Filing: 1969-03-17
•
Granted: 1972-01-11
•
Expires: 1989-03-17
Abstract
Abstract This disclosure relates to apparatus and methods for making paper sheet material and the like sheet material, wherein a paper sheet or the like producing moisture bearing slurry supply means feeds its slurry to a portion of a belt means to produce a moisture bearing paper web material on such portion of the belt means. Said web material is fed from said belt portion to a web drying section wherein the web has its moisture gradually removed by other portions of the belt means in cooperation with electrostatic electrode means. The electrode means may include relatively large and relatively small electrode means to produce moisture removing nonuniform electrostatic fields. Various parts of previous paper making apparatus may be modified to remove the moisture.
Inventors
- 👤 Robert R Candor
- 👤 James T Candor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:07
CPC Classifications
D; D21; D21J; D21J5/00; D21F; D21F5/00; D21F5/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
18 words
An apparatus according to claim 1 in which said mechanical means of said first section includes belt means.
Claim 2
Dependent Claim
14 words
An apparatus according to claim 1 in which said electrostatic means includes belt means.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1 in which said mechanical means includes belt means and in which said electrostatic means includes separate belt means.
Claim 4
Dependent Claim
27 words
An apparatus according to claim 1 in which said electrostatic means includes electrode means to produce a nonuniform electrostatic field on opposite sidEs of said moist web.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 5 in which said electrostatic means includes a rotary drying roll contacted by said moist web.
Claim 6
Dependent Claim
19 words
An apparatus according to claim 6 in which a moisture absorbent belt holds said moist web against said roll.
Claim 7
Dependent Claim
15 words
An apparatus according to claim 7 with relatively small electrode means adjacent said absorbent belt.
Claim 8
Dependent Claim
16 words
An apparatus according to claim 8 with relatively large electrode means inside said rotary drying roll.
Claim 9
Dependent Claim
20 words
An apparatus according to claim 6 in which a plurality of rotary drying rolls are contacted by said moist web.
Claim 10
Dependent Claim
20 words
An apparatus according to claim 10 in which moisture absorbent belt means holds said moist web against said drying rolls.
Claim 11
Dependent Claim
16 words
An apparatus according to claim 11 in which said rolls are located zigzag in parallel rows.
Claim 12
Dependent Claim
24 words
An apparatus according to claim 5 in which said electrostatic means includes an absorbent belt having a flat run which supports said moist web.
Claim 13
Dependent Claim
21 words
An apparatus according to claim 13 in which relatively small electrode means is located adjacent one side of said flat run.
Claim 14
Dependent Claim
66 words
An apparatus according to claim 14 in which moisture removal is provided for said absorbent belt. 16 An apparatus according to claim 1 in which said electrostatic means includes absorbent belt means, and in which moisture removal means is provided for said absorbent belt means. 17 An apparatus according to claim 16 in which said moisture removal means for said absorbent belt means includes electrostatic means.
Claim 15
Dependent Claim
25 words
An apparatus according to claim 17 in which said last named electrostatic means includes means for applying a nonuniform field to said absorbent belt means.
Claim 16
Dependent Claim
17 words
An apparatus according to claim 17 in which said last-named electrostatic means includes rotary moisture collecting means.
Claim 17
Dependent Claim
23 words
An apparatus according to claim 19 in which said rotary moisture-collecting means has inverting means to empty moisture out of said collecting means.
Claim 18
Dependent Claim
22 words
An apparatus according to claim 20 in which said moisture-collecting means has inverting means to empty moisture out of said collecting means.
Claim 19
Dependent Claim
40 words
An apparatus according to claim 21 in which said inverting means includes a rotary drum having moisture-collecting pockets which are upwardly directed to receive moisture from said absorbent means and which are inverted to empty moisture out of said pockets.
Claim 20
Dependent Claim
20 words
An apparatus according to claim 19 in which relatively small electrode means is provided inside said rotary moisture collecting means.
Claim 21
Dependent Claim
19 words
An apparatus according to claim 23 in which relatively large electrode means is provided outside said rotary moisture-collecting means.
Claim 22
Dependent Claim
45 words
An apparatus according to claim 1 in which said first section has mechanical means to form paper-foming slurry into a moist paper sheet web, and said second section has said electrostatic means to form said moist paper sheet web into a substantially drier paper sheet.
Claim 23
Independent Claim
119 words
A method for making dried sheet means comprising the steps of forming a self-adhering moist sheet web from a slurry in a web forming first section having mechanical means to remove moisture from said slurry to form said slurry into said moist sheet web, transferring said self-adhering moist sheet web from said first section to a web drying second section, and creating an electrostatic field action on at least some of said moisture in said moist sheet web that removes at least some of said moisture from said moist sheet web in substantially liquid form solely by said electrostatic field action to form a sheet having less of the original moisture thereof by electrostatic means in said second section.
References Cited (Backward Citations)
US3057075A
Cited
US3401463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |