US3622089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushing plant
Assignee: JOHNSON WELDING AND EQUIPMENT CO Inc
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Filing: 1969-12-04
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Granted: 1971-11-23
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Expires: 1989-12-04
Abstract
Abstract Input material comprised of stone, gravel or other material to be crushed is screened at a receiving station to separate the largest pieces of input material into two different sizes. The largest pieces are fed into an adjacent primary crusher at one of a plurality of zones at which crushing takes place. The second largest pieces are conducted past said first designated crushing zone, in overhead relation thereto, and delivered to crushing means at another zone. Screens located under the crushing means at each crushing zone vibrationally conduct carryover material thereon of larger than finish size to an elevator, from the discharge means of which crushed but still oversize material is fed to crushing means at one of said crushing zones other than said first designated crushing zone. The crushing plant has the customary primary and secondary crushers, and either or both of them can be comprised of first and second stage crushing devices.
Inventors
- 👤 John N Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:52
CPC Classifications
B; B02; B02C; B02C23/00; B02C23/08; B02C23/10; B02C23/12; B02C21/00; B02C21/02
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
42 words
THE TOPMOST SCREENING MEMBER BEING THE COARSEST AND BEING ADAPTED TO DISCHARGE CARRYOVER MATERIALS THAT FAIL TO PASS THERETHROUGH ONTO THE LOWER LEVEL ONE OF THE REMAINING SCREENING MEMBERS, IN BYPASS RELATION TO THE UPPER LEVEL ONE OF SAID REMAINING SCREENING MEMBERS,
Claim 2
Dependent Claim
42 words
THE TOPMOST SCREENING MEMBER BEING THE COARSEST AND BEING ADAPTED TO DISCHARGE CARRYOVER MATERIALS THAT FAIL TO PASS THERETHROUGH ONTO THE LOWER LEVEL ONE OF THE REMAINING SCREENING MEMBERS, IN BYPASS RELATION TO THE UPPER LEVEL ONE OF SAID REMAINING SCREENING MEMBERS,
Claim 3
Dependent Claim
68 words
A crushing plant of the type having an elongated frame with lengthwise spaced first and second crushing means thereon, and having conveyor means beneath said crushing means for receiving and conducting materials of finish size to a delivery zone, characterized by: A. material receiving and classifying means mounted on the frame adjacent to said first crushing means and comprising superimposed material screening members disposed at three different levels,
Claim 4
Dependent Claim
68 words
A crushing plant of the type having an elongated frame with lengthwise spaced first and second crushing means thereon, and having conveyor means beneath said crushing means for receiving and conducting materials of finish size to a delivery zone, characterized by: A. material receiving and classifying means mounted on the frame adjacent to said first crushing means and comprising superimposed material screening members disposed at three different levels,
Claim 5
Dependent Claim
30 words
said upper level screening member being positioned to receive materials which pass through the topmost screening member and having mesh no smaller than that of said lower level screening member,
Claim 6
Dependent Claim
30 words
said upper level screening member being positioned to receive materials which pass through the topmost screening member and having mesh no smaller than that of said lower level screening member,
Claim 7
Dependent Claim
30 words
SAID UPPER LEVEL SCREENING MEMBER BEING POSITIONED TO RECEIVE MATERIALS WHICH PASS THROUGH THE TOPMOST SCREENING MEMBER AND HAVING MESH NO SMALLER THAN THAT OF SAID LOWER LEVEL SCREENING MEMBER,
Claim 8
Dependent Claim
30 words
SAID UPPER LEVEL SCREENING MEMBER BEING POSITIONED TO RECEIVE MATERIALS WHICH PASS THROUGH THE TOPMOST SCREENING MEMBER AND HAVING MESH NO SMALLER THAN THAT OF SAID LOWER LEVEL SCREENING MEMBER,
Claim 9
Dependent Claim
83 words
A crushing plant of the type having an elongated frame with crushing means thereon at a plurality of stations spaced from one another lengthwise of the frame, and having conveyor means beneath said crushing means for receiving and conducting materials of finish size to a delivery zone, characterized by: A. material receiving and classifying means mounted on the rear end portion of the frame, behind but adjacent to a first one of said stations, comprising superimposed material screening members at three different levels,
Claim 10
Dependent Claim
83 words
A crushing plant of the type having an elongated frame with crushing means thereon at a plurality of stations spaced from one another lengthwise of the frame, and having conveyor means beneath said crushing means for receiving and conducting materials of finish size to a delivery zone, characterized by: A. material receiving and classifying means mounted on the rear end portion of the frame, behind but adjacent to a first one of said stations, comprising superimposed material screening members at three different levels,
Claim 11
Dependent Claim
17 words
said upper level screening member having mesh no smaller than that of said lower level screening member,
Claim 12
Dependent Claim
17 words
said upper level screening member having mesh no smaller than that of said lower level screening member,
Claim 13
Dependent Claim
93 words
and said upper and lower level screening members comprising decks of a vibratory unit that vibrationally effects advance of carryover materials on each of said decks in a direction forwardly of the frame, toward said first station; B. means for effecting discharge of carryover material vibrationally advanced by said lower level deck into the crushing means at said first station; C. and means extending forwardly over said first station for effecting delivery of carryover material vibrationally advanced by said upper level deck into the crushing means at a second one of said stations.
Claim 14
Dependent Claim
93 words
and said upper and lower level screening members comprising decks of a vibratory unit that vibrationally effects advance of carryover materials on each of said decks in a direction forwardly of the frame, toward said first station; B. means for effecting discharge of carryover material vibrationally advanced by said lower level deck into the crushing means at said first station; C. and means extending forwardly over said first station for effecting delivery of carryover material vibrationally advanced by said upper level deck into the crushing means at a second one of said stations.
Claim 15
Dependent Claim
75 words
The crushing plant of claim 2, further characterized by: A. said lower level deck extending rearwardly beyond the upper level deck and said topmost member; B. and said topmost member having a discharge end which extends rearwardly beyond said upper level deck and over the rearward extension of said lower level deck so that carryover materials on the topmost member will discharge onto the lower level deck in bypass relation to said upper level deck.
Claim 16
Dependent Claim
83 words
AND SAID UPPER AND LOWER LEVEL SCREENING MEMBERS COMPRISING DECKS OF A VIBRATORY UNIT WHICH EFFECTS VIBRATIONAL ADVANCE OF CARRYOVER MATERIALS ON SAID UPPER AND LOWER LEVEL DECKS IN A DIRECTION TOWARD SAID FIRST CRUSHING MEANS; B. means for effecting discharge of carryover material vibrationally advanced along said lower level deck into said first crushing means; C. and means extending over said first crushing means for effecting delivery of carryover material vibrationally advanced along said upper level deck into said second crushing means.
Claim 17
Dependent Claim
83 words
AND SAID UPPER AND LOWER LEVEL SCREENING MEMBERS COMPRISING DECKS OF A VIBRATORY UNIT WHICH EFFECTS VIBRATIONAL ADVANCE OF CARRYOVER MATERIALS ON SAID UPPER AND LOWER LEVEL DECKS IN A DIRECTION TOWARD SAID FIRST CRUSHING MEANS; B. means for effecting discharge of carryover material vibrationally advanced along said lower level deck into said first crushing means; C. and means extending over said first crushing means for effecting delivery of carryover material vibrationally advanced along said upper level deck into said second crushing means.
Claim 18
Dependent Claim
83 words
and said upper and lower level screening members comprising decks of a vibratory unit which effects vibrational advance of carryover materials on said upper and lower level decks in a direction toward said first crushing means; B. means for effecting discharge of carryover material vibrationally advanced along said lower level deck into said first crushing means; C. and means extending over said first crushing means for effecting delivery of carryover material vibrationally advanced along said upper level deck into said second crushing means.
Claim 19
Dependent Claim
83 words
and said upper and lower level screening members comprising decks of a vibratory unit which effects vibrational advance of carryover materials on said upper and lower level decks in a direction toward said first crushing means; B. means for effecting discharge of carryover material vibrationally advanced along said lower level deck into said first crushing means; C. and means extending over said first crushing means for effecting delivery of carryover material vibrationally advanced along said upper level deck into said second crushing means.
Claim 20
Dependent Claim
43 words
The crushing plant of claim 3, wherein said topmost screening member comprises a grizzly which is tilted downwardly and rearwardly toward said rearward extension of the lower level deck so as to direct thereto carryover material that fails to pass through the grizzly.
Claim 21
Dependent Claim
127 words
The crushing plant of claim 2, further characterized by: A. said vibratory unit having a third screen deck of fine mesh under said lower level deck to receive materials passing through the latter, said third deck being adapted to pass and thus separate fines from the material being processed; B. a pair of side-by-side belt conveyors beneath said third deck, each extending lengthwise of the frame and adapted to either conduct fines dropping thereonto from said third deck forwardly onto said conveyor means or rearwardly off of the plant as reject material, depending upon the direction in which the conveyor is run; C. and means providing for selectively directing the bulk of the fines passing through said third deck onto one or the other of said conveyors.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |