US3012900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dusting particles of adhesive materials
Assignee: Phillips Petroleum Co
•
Filing: 1957-04-26
•
Granted: 1961-12-12
•
Expires: 1977-04-26
Abstract
No abstract record available.
Inventors
- 👤 Earl E Kleinmann
- 👤 Paul F Tooman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:28
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/16; B29K; B29K2021/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR REDUCING THE STICKING TENDENCY OF AN ADHESIVE MATERIAL WHICH COMPRISES INTRODUCING SAID MATERIAL IN EXTRUDED FORM INTO THE UPPER PORTION OF A CONFINED ZONE CONTAINING FINELY SUBDIVIDED POWDER ENTRAINED IN A GAS, SUBDIVIDING SAID EXTRUDATE INTO PARTICLES, SIMULTANEOUSLY PASSING A STREAM OF SAID PARTICLES DOWNWARDLY THROUGH SAID ZONE ALONG AN INCLINED PATH AND MECHANICALLY IMPARTING A TUMBLING ACTION TO SAID PARTICLES, PASSING A GAS UPWARDLY IN SAID ZONE, ENTRAINING IN SAID GAS A FINELY SUBDIVIDED POWDER, CONTACTING DESCENDING PARTICLES OF ADHESIVE MATERIAL WITH SAID ENTRAINED POWDER WHEREBY SAID PARTICLES ARE COATED WITH POWDER AND THE ADHESIVE PROPERTIES THEREOF ARE SUBSTANTIALLY REDUCED AND WITHDRAWING COATED PARTICLES FROM THE CONFINED ZONE.
Claim 2
Dependent Claim
112 words
A PROCESS FOR REDUCING THE STICKING TENDENCY OF AN ADHESIVE MATERIAL WHICH COMPRISES INTRODUCING SAID MATERIAL IN EXTRUDED FORM INTO THE UPPER PORTION OF A CONFINED ZONE CONTAINING FINELY SUBDIVIDED POWDER ENTRAINED IN A GAS, SUBDIVIDING SAID EXTRUDATE INTO PARTICLES, SIMULTANEOUSLY PASSING A STREAM OF SAID PARTICLES DOWNWARDLY THROUGH SAID ZONE ALONG AN INCLINED PATH AND MECHANICALLY IMPARTING A TUMBLING ACTION TO SAID PARTICLES, PASSING A GAS UPWARDLY IN SAID ZONE, ENTRAINING IN SAID GAS A FINELY SUBDIVIDED POWDER, CONTACTING DESCENDING PARTICLES OF ADHESIVE MATERIAL WITH SAID ENTRAINED POWDER WHEREBY SAID PARTICLES ARE COATED WITH POWDER AND THE ADHESIVE PROPERTIES THEREOF ARE SUBSTANTIALLY REDUCED AND WITHDRAWING COATED PARTICLES FROM THE CONFINED ZONE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |