Patent US3596842A successfully refreshed from Google Patents.
US3596842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for separating a granular substance from a container of paper or the like
Assignee: SUPERIOR TEA AND COFFEE CO
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Filing: 1969-03-05
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Granted: 1971-08-03
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Expires: 1989-03-05
Abstract
Abstract A machine for receiving closed packages of paper or other tearable material containing a granular substance, tearing the walls of the package to a substantial degree by the use of toothed means, delivering the remnants of the torn package and the contents to a vibrating screen having interstices to pass the substance to a hopper therebelow, the screen being inclined to deliver the remnants to one collecting point and the hopper being inclined to deliver the substance to another collecting point.
Inventors
- 👤 Delbert K Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:01
CPC Classifications
B; B65; B65B; B65B69/00; B65B69/0008; Y; Y10; Y10S; Y10S241/00; Y10S241/38
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
117 words
A machine for emptying packages containing granular substance, the package combining material capable of being torn to free the contents for discharge comprising: means to tear the package, a hopper to receive the packages, said hopper having a bottom outlet, a gate positioned in said outlet to control delivery of the packages to the tearing means, said gate comprising a hollow cylinder having a portion of its lateral wall open to receive one or more packages during one part of a revolution and, during a subsequent part of a revolution, to release said packages for delivery to the tearing means, the margin of the opening having a V-shaped projection on its trailing side to tear the package.
Claim 2
Dependent Claim
117 words
A machine for emptying packages containing granular substance, the package combining material capable of being torn to free the contents for discharge comprising: means to tear the package, a hopper to receive the packages, said hopper having a bottom outlet, a gate positioned in said outlet to control delivery of the packages to the tearing means, said gate comprising a hollow cylinder having a portion of its lateral wall open to receive one or more packages during one part of a revolution and, during a subsequent part of a revolution, to release said packages for delivery to the tearing means, the margin of the opening having a V-shaped projection on its trailing side to tear the package.
Claim 3
Dependent Claim
80 words
The combination in accordance with claim 1 further characterized in that the hopper is defined by wall portions adjacent the gate being spaced from the gate by a distance less than the minimum dimension of the package to preclude short-circuiting of a package past the gate, at least one of the walls opposite the gate opening being yieldably mounted whereby a package which protrudes beyond the periphery of the gate will deflect said gate in passing whereby to preclude jamming.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |