US3056719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous web forming machine
Assignee: Individual
•
Filing: 1959-07-09
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Granted: 1962-10-02
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Expires: 1979-07-09
Abstract
No abstract record available.
Inventors
- 👤 David R Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:58
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/04; Y; Y10; Y10S; Y10S162/00; Y10S162/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A METHOD FOR PRODUCING A CONTINUOUS SHEET SUCH AS PAPER WHICH COMPRISES THE STEPS OF: DELIVERING FIBERS IN LIQUID SUSPENSION OF PAPERMAKING CONCENTRATION AND AS A RIBBON-LIKE FREE JET TO A JUNCTURE BETWEEN AN ARCUATE EXTERNAL SURFACE OF AN UNYEILDING ROTATING BODY AND AN ADJACENT EXTERNAL SURFACE OF A YEILDING SUPPORTED BODY CONVERGING IN AN ARCUATE PATH THEREWITH AND FORMING A PRESSURE RESPONSIVE NIP, AT LEAST ONE OF WHICH SURFACES IS POROUS, THEREBY CREATING A CO-ACTING ZONE THE LENGTH OF SAID JUNCTURE; DRIVING SAID BODIES IN THE SAME DIRECTION AS SAID JET AT SAID JUNCTURE AND AT THE SAME LINEAR SPEED; PROPORTIONING THE SPEED OF SAID FREE JET, THE SPEED OF SAID JUNCTURE OF BODIES, AND THE PRESSURE BETWEEN SAID BODIES TO CAUSE THE JET TO FORCE A DEFLECTION OF SAID PRESSURE RESPONSIVE NIP FROM SAID UNYEILDING BODY, THEREBY FORCING SAID BODIES OUT OF CONTACT WITH EACH OTHER BY AN INFLOW OF STOCK; MAINTAINING A RESIDUAL TENSION IN SAID YEILDING BODY,
Claim 2
Independent Claim
161 words
A METHOD FOR PRODUCING A CONTINUOUS SHEET SUCH AS PAPER WHICH COMPRISES THE STEPS OF: DELIVERING FIBERS IN LIQUID SUSPENSION OF PAPERMAKING CONCENTRATION AND AS A RIBBON-LIKE FREE JET TO A JUNCTURE BETWEEN AN ARCUATE EXTERNAL SURFACE OF AN UNYEILDING ROTATING BODY AND AN ADJACENT EXTERNAL SURFACE OF A YEILDING SUPPORTED BODY CONVERGING IN AN ARCUATE PATH THEREWITH AND FORMING A PRESSURE RESPONSIVE NIP, AT LEAST ONE OF WHICH SURFACES IS POROUS, THEREBY CREATING A CO-ACTING ZONE THE LENGTH OF SAID JUNCTURE; DRIVING SAID BODIES IN THE SAME DIRECTION AS SAID JET AT SAID JUNCTURE AND AT THE SAME LINEAR SPEED; PROPORTIONING THE SPEED OF SAID FREE JET, THE SPEED OF SAID JUNCTURE OF BODIES, AND THE PRESSURE BETWEEN SAID BODIES TO CAUSE THE JET TO FORCE A DEFLECTION OF SAID PRESSURE RESPONSIVE NIP FROM SAID UNYEILDING BODY, THEREBY FORCING SAID BODIES OUT OF CONTACT WITH EACH OTHER BY AN INFLOW OF STOCK; MAINTAINING A RESIDUAL TENSION IN SAID YEILDING BODY,
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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |