Patent US3254847A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3254847A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for treatment of barking waste

Assignee: Consolidated Paper Bahamas Ltd
•
Filing: 1965-06-29
•
Granted: 1966-06-07
•
Expires: 1985-06-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Brandts Theodorus Gerardus
  • 👤 Helleur Donald Edmund
  • 👤 Hopkins Robert Montgomery
  • 👤 Lichtenberger Joseph Alois

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:43
CPC Classifications
D; D21; D21C; D21C5/00

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 141 words
A PROCESS FOR THE TREATMENT OF BARKING WASTE OF THE TYPE HAVING A STRINGY FIBROUS COMPONENT AND A NON-FIBROUS COMPONENT, COMPRISING DEWATERING AND DISINTEGRATING SAID BARKING WASTE SO THAT THE MOISTURE CONTENT THEREOF IS BELOW 75% AND ABOVE 30% OF THE WET WEIGHT OF SAID WASTE AND THE INDIVIDUAL PIECES ARE NO LONGER THAN ONE FOOT IN THEIR MAXIMUM DIMENSION, THEREAFTER DISASSOCIATING SAID FIBROUS AND NON-FIBROUS COMPONENT AND FURTHER DISINTEGRATION OF SAID NON-FIBROUS COMPONENT TO SEPARATE SAID NON-FIBROUS AND FIBROUS COMPONENTS THEREOF FROM ONE ANOTHER TO THE EXTENT THAT EACH IS CAPABLE OF MOVING INDEPENDENTLY OF THE OTHER EXCEPT FOR PHYSICAL ENTANGLEMENT WITH MINIMUM REDUCTION IN LENGTH OF SAID FIBROUS COMPONENT, AND THEREAFTER SEMI-DRY SCREENING SAID WASTE TO YIELD A COARSE STRINGY FIBROUS PRODUCT WHICH IS REJECTED BY THE SCREENING AND A LESS COARSE RESIDUE WHICH IS PASSED BY THE SCREEENING.

References Cited (Backward Citations)

US1797901A Cited
US2437632A Cited
US2874908A Cited
US2877953A Cited
US2947655A Cited
US2828081A Cited
US3086717A Cited
US2973152A Cited
US3070318A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-06-06 1969-12-06 1970-06-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-06-06 1973-12-06 1974-06-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-06-06 1977-12-06 1978-06-07 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag