US4267946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate matter dispensing device
Assignee: Individual
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Filing: 1979-10-01
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Granted: 1981-05-19
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Expires: 1999-10-01
Abstract
Abstract An economical device for dispensing particulate matter uniformly across a surface which includes a rotating cylinder which has wrapped around the surface thereof in abutting fashion, a conventional small sprocket chain thus providing a series of small receptacles of uniform size which when filled with particulate material passes underneath a restrainer so that each container has a uniform quantity of particulate material therein and then as the cylinder rotates the particulate material is dispensed by gravity.
Inventors
- 👤 Gary G. Thatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:27
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/144; E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; G; G01; G01F; G01F13/00; G01F13/001; G01F13/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A particulate matter dispensing device comprising container means, rotatable cylindrical means disposed horizontally in said container means, means for rotating said cylindrical means, a plurality of particulate receiving container means covering substantially the entire surface of said cylindrical means, a single length of sprocket chain, helically wound about said cylindrical means in abutting relationship wherein said sprocket chain is fastened at each of its ends to longitudinally opposite ends of said cylindrical means and covers substantially all of the surface of said cylindrical means, said sprocket chain comprising a single chain comprising two spaced substantially parallel sides, said sides being connected at spaced intervals by connecting pin means, so as to create said plurality of particulate receiving means, and restrainer means positioned coextensive with said cylindrical means and extending throughout the length of said cylindrical means.
Claim 2
Dependent Claim
136 words
A particulate matter dispensing device comprising container means, rotatable cylindrical means disposed horizontally in said container means, means for rotating said cylindrical means, a plurality of particulate receiving container means covering substantially the entire surface of said cylindrical means, a single length of sprocket chain, helically wound about said cylindrical means in abutting relationship wherein said sprocket chain is fastened at each of its ends to longitudinally opposite ends of said cylindrical means and covers substantially all of the surface of said cylindrical means, said sprocket chain comprising a single chain comprising two spaced substantially parallel sides, said sides being connected at spaced intervals by connecting pin means, so as to create said plurality of particulate receiving means, and restrainer means positioned coextensive with said cylindrical means and extending throughout the length of said cylindrical means.
Claim 3
Dependent Claim
25 words
A device as set forth in claim 1 wherein said sprocket chain sides comprise a plurality of pieces rotatably connected to said connecting pin means.
Claim 4
Dependent Claim
43 words
A device as set forth in claim 2 wherein said restrainer means comprises a flat, thin sheet material which has one edge connected to the interior of said container means and extends over and rests on said plurality of particulate receiving container means.
Claim 5
Dependent Claim
31 words
A device as set forth in claim 3 wherein an additional restrainer means is provided below said cylindrical means and extends co-extensive therewith throughout the entire length of said cylindrical 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) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |