US3357879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stock dispersion apparatus utilizing pressure differential to uniformly disperse the stock
Assignee: Fitchburg Paper Co
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Filing: 1964-02-21
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Granted: 1967-12-12
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Expires: 1984-02-21
Abstract
No abstract record available.
Inventors
- 👤 William N Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:31
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0357
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
APPARATUS FOR DISPENSING FLUID MATERIAL COMPRISING: (A) BOX LIKE RECEPTACLE MEANS FOR RECEIVING FLUID MATERIAL INCLUDING FIRST FLUID MATERIAL MEANS AND SECOND FLUID RECEIVING MATERIAL MEANS, SEPARATED BY SEPARTING MEANS PROVIDING A PASSAGEWY PERMITTING MOVEMENT OF FLUID MATERIAL FROM SAID FIRST MATERIAL RECEIVING MEANS TO SAID SECOND MATERIAL RECEIVING MEANS; (B) SAID FIRST FLUID MATERIAL RECEIVING MEANS BEING CONSTRUCTED TO ACCUMULATE FLUID MATERIAL TO A SUFFICIENT DEPTH TO CREATE A FIRST PRESSURE OF A FIRST PREDETERMINED MAGNITUDE; (C) SAID SECOND FLUID MATERIAL RECEIVING MEANS BEING CONSTRUCTED TO RESTRICT THE DEPTH OF FLUID MATERIAL SO AS TO CREATE A SECOND PRESSURE THE MAGNITUDE OF WHICH IS SUFFICIENTLY REDUCED WITH RESPECT TO THE MAGNITUDE DISPERSING ACTION AS THE FLUID MATERIAL ENTERS SAID SECOND FLUID MATERIAL RECEIVING MENS; AND (D) FLUID MOVING MEANS FOR MOVING THE SAID FLUID MATERIAL INTO SAID FIRST FLUID MATERIAL RECEIVING MEANS, SAID PASSAGEWAY, AND SAID SECOND FLUID MATERIAL RECEIVING MEANS.
Claim 2
Dependent Claim
152 words
APPARATUS FOR DISPENSING FLUID MATERIAL COMPRISING: (A) BOX LIKE RECEPTACLE MEANS FOR RECEIVING FLUID MATERIAL INCLUDING FIRST FLUID MATERIAL MEANS AND SECOND FLUID RECEIVING MATERIAL MEANS, SEPARATED BY SEPARTING MEANS PROVIDING A PASSAGEWY PERMITTING MOVEMENT OF FLUID MATERIAL FROM SAID FIRST MATERIAL RECEIVING MEANS TO SAID SECOND MATERIAL RECEIVING MEANS; (B) SAID FIRST FLUID MATERIAL RECEIVING MEANS BEING CONSTRUCTED TO ACCUMULATE FLUID MATERIAL TO A SUFFICIENT DEPTH TO CREATE A FIRST PRESSURE OF A FIRST PREDETERMINED MAGNITUDE; (C) SAID SECOND FLUID MATERIAL RECEIVING MEANS BEING CONSTRUCTED TO RESTRICT THE DEPTH OF FLUID MATERIAL SO AS TO CREATE A SECOND PRESSURE THE MAGNITUDE OF WHICH IS SUFFICIENTLY REDUCED WITH RESPECT TO THE MAGNITUDE DISPERSING ACTION AS THE FLUID MATERIAL ENTERS SAID SECOND FLUID MATERIAL RECEIVING MENS; AND (D) FLUID MOVING MEANS FOR MOVING THE SAID FLUID MATERIAL INTO SAID FIRST FLUID MATERIAL RECEIVING MEANS, SAID PASSAGEWAY, AND SAID SECOND FLUID MATERIAL RECEIVING MEANS.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |