Patent US3556415A successfully refreshed from Google Patents.
US3556415A
Expired / Lapsed
US
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Jaw crusher and method of operation thereof
Assignee: Envirotech Corp
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Filing: 1968-07-12
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Granted: 1971-01-19
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Expires: 1988-07-12
Abstract
Abstract A generally horizontal flow vertical axis jaw-type crusher is provided wherein the jaws are mounted for eccentric motion toward and away from each other and linkage means driven by at least one of the jaws is provided for synchronous compaction feeding of material to be crushed into the jaws of the crusher.
Inventors
- 👤 Heinz W Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:36
CPC Classifications
B; B02; B02C; B02C1/00; B02C1/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
92 words
In a generally horizontal flow vertical axis jaw-type crusher wherein at least one of the jaws thereof is mounted for eccentric motion toward and away from the other of said jaws, a classifier and feeder mounted for reciprocation below the jaws and means for synchronously reciprocating the classifier and feeder in response to eccentric motion of the said at least one jaw comprising linkage means connected to the eccentrically mounted jaw for reciprocating the feeder and classifier in a direction opposite to the reciprocating component of the eccentric motion of the jaw.
Claim 2
Dependent Claim
97 words
In a generally horizontal flow, vertical axis jaw-type crusher wherein at least one of the jaws thereof is mounted for eccentric motion toward and away from the other of said jaws, a classifier and feeder mounted for reciprocation below the jaws, and means for synchronously reciprocating the classifier and feeder in response to eccentric motion of the said at least one jaw comprising, a rocker arm, means connecting one end of the eccentrically mounted jaw to one end of the rocker arm, and means connecting the other end of the rocker arm to said feeder and classifier.
Claim 3
Dependent Claim
25 words
The invention defined in claim 2 wherein the classifier and feeder reciprocates at least in part below a storage hopper for material to be crushed.
Claim 4
Dependent Claim
42 words
The invention defined in claim 4 wherein the classifier and feeder includes a sloping end wall at the end remote from the jaws of the crusher to compact the material, in the normal direction of flow of material, into the crusher jaws.
Claim 5
Dependent Claim
27 words
The invention defined in claim 4 wherein the classifier and feeder includes a generally vertical offset zone in the bottom wall thereof upstream of the crusher jaws.
Claim 6
Dependent Claim
34 words
The invention defined in claim 2 wherein each of the crusher jaws is eccentrically mounted, the crusher jaws synchronously driven and each of the eccentrically mounted jaws assists in reciprocating the classifier and feeder.
Claim 7
Dependent Claim
27 words
The invention defined in claim 5 wherein the classifier and feeder includes a generally vertical offset zone in the bottom walls thereof upstream of the crusher jaws.
Claim 8
Dependent Claim
35 words
The invention defined in claim 3 wherein each of the crusher jaws is eccentrically mounted, the crusher jaws are synchronously driven and each of the eccentrically mounted jaws assist in reciprocating the classifier and feeder.
References Cited (Backward Citations)
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Cited
US2996261A
Cited
DE1109986B
Cited
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Cited
GB1005898A
Cited
US3452938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |