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USRE28125E Expired / Lapsed US ⏱️ 0.0 years remaining

Quinn portable crushing plant

Assignee: —
•
Filing: 1973-05-07
•
Granted: 1974-08-20
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Expires: 1993-05-07
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Abstract

Abstract 1. IN A CRUSHING PLANT: (A) MEANS PROVIDING A FORE-AND-AFT EXTENDING FRAME? (B) AN ELEVATOR CARRIED BY THE FRAME INTERMEDIATE THE FRONT AND REAR ENDS THEREOF, SAID ELEVATOR HAVING A LOW LEVEL RECEIVING PORTION AND A HIGHER LEVEL DISCHARGE PORTION, (C) A FIRST CRUSHER MOUNTED ON THE FRAME MEANS BETWEEN THE REAR END THEREOF AND THE ELEVATOR AND HAVING AN INLET AT ITS TOP AND AN OUTLET AT ITS BOTTOM, (D) MEANS FOR DIRECTING COARSE MATERIAL TO BE CRUSHED INTO THE INLET OF SAID FIRST CRUSHER, (E) A FIRST MATERIAL ADVANCING VIBRATORY SCREEN CARRIED BY THE FRAME MEANS AND HAVING A RECEIVING PORTION BENEATH THE OUTLET OF SAID FIRST CRUSHER AND A DISCHARGE END PORTION ARRANGED TO FEED CARRYOVER MATERIAL VIBRATORY ADVANCED THEREALONG INTO THE RECEIVING PORTION OF THE ELEVATOR, (F) A SECOND CRUSHER MOUNTED ON THE FRAME MEANS ADJACENT TO THE ELEVATOR AND HAVING AN INLET IN ITS TOP AND AN OUTLET AT ITS BOTTOM, (G) MEANS FOR CONDUCTING MATERIAL FROM THE DISCHARGE PORTION OF THE ELEVATOR INTO THE INLET OF THE SECOND CRUSHER, (H) FIRST CONVEYOR MEANS HAVING A RECEIVING PORTION BENEATH THE OUTLET OF THE SECOND CRUSHER AND A DISCHARGING PORTION SPACED FORWARDLY FROM ITS RECEIVING PORTION, (I) A SECOND VIBRATORY SCREEN HAVING A RECEIVING PORTION BENEATH THE DISCHARGING PORTION OF THE FIRST CONVEYOR MEANS AND HAVING A DISCHARGE END PORTION ARRANGED TO FEED CARRYOVER MATERIALS VIBRATORY ADVANCED THEREALONG INTO THE RECEIVING PORTION OF THE ELEVATOR, (J) AND SECOND CONVEYOR MEANS EXTENDING FORWARDLY BENEATH AND FIRST VIBRATORY SCREEN, THE ELEVATOR AND THE SECOND VIBRATORY SCREEN, FORE RECEIVING FINISHED MATERIALS FROM SAID VIBRATORY SCREENS, AND HAVING A DISCHARGING END PORTION LOCATED AT THE FRONT END OF THE FRAME MEANS.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:20
CPC Classifications
B; B02; B02C; B02C21/00; B02C21/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-08-19 1978-02-18 1978-08-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-19 1982-02-18 1982-08-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-19 1986-02-18 1986-08-20 $7700.00 Window Closed / Lapsed

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