US3974907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible mobile conveyor
Assignee: Individual
•
Filing: 1971-10-29
•
Granted: 1976-08-17
•
Expires: 1991-10-29
Abstract
Abstract A flexible mobile conveyor is provided which is particularly useful in deep mining operations. The conveyor comprises a plurality of carriages, a pair of wheels supporting each carriage, an endless conveyor mounted on each carriage, drive means on each carriage engaging and driving the conveyor means, a swivel connection between each pair of carriages permitting generally universal movement between adjacent carriages and a main power source on one of said carriages, driving the supporting wheels.
Inventors
- 👤 Howard A. Shaw
- 👤 John D. Todhunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:23
CPC Classifications
B; B65; B65G; B65G41/00; B65G41/007; B65G41/008; E; E21; E21C; E21C35/00; E21C35/20; E21F; E21F13/00; E21F13/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
172 words
A flexible mobile conveyor comprising a plurality of carriages, a pair of wheels supporting each carriage, an endless conveyor mounted on each carriage, drive means on each carriage engaging and driving the conveyor means, connections between each successive carriage whereby a portion of the conveyor of one overlies and feeds to the conveyor of the next and a portion of the said one conveyor is carried by said other, said connections including a swivel connection between each pair of carriages permitting generally universal movement between adjacent carriages, a main power source on one of said carriages and connections from said main power source driving the supporting wheels in each successive carriage, each conveyor on each carriage having a ramp at one end and a flexible discharge section at the other end, said flexible discharge section including a triangular bottom plate and a pair of parallel spaced apart flexible sidewalls adjacent said triangular bottom plate moving thereover and depending by means on the flexible sidewalls engaging the ramp of the next adjacent conveyor.
Claim 2
Dependent Claim
172 words
A flexible mobile conveyor comprising a plurality of carriages, a pair of wheels supporting each carriage, an endless conveyor mounted on each carriage, drive means on each carriage engaging and driving the conveyor means, connections between each successive carriage whereby a portion of the conveyor of one overlies and feeds to the conveyor of the next and a portion of the said one conveyor is carried by said other, said connections including a swivel connection between each pair of carriages permitting generally universal movement between adjacent carriages, a main power source on one of said carriages and connections from said main power source driving the supporting wheels in each successive carriage, each conveyor on each carriage having a ramp at one end and a flexible discharge section at the other end, said flexible discharge section including a triangular bottom plate and a pair of parallel spaced apart flexible sidewalls adjacent said triangular bottom plate moving thereover and depending by means on the flexible sidewalls engaging the ramp of the next adjacent conveyor.
Claim 3
Dependent Claim
148 words
A flexible mobile conveyor comprising a plurality of carriages, a pair of wheels supporting each carriage, an endless conveyor mounted on each carriage, drive means on each carriage engaging and driving the conveyor means, connections between each successive carriage whereby a portion of the conveyor of one overlies and feeds to the conveyor of the next and a portion of the said one conveyor is carried by said other, said connections including a swivel connection between each pair of carriages permitting generally universal movement between adjacent carriages, a main power source on one of said carriages and connections from said main power source driving the supporting wheels in each successive carriage, and wherein each conveyor is made up of two spaced rigid sidewalls cut away intermediate their ends and connected by a pair of flexible side plates and a pie shaped bottom plate beneath the flexible side plates.
Claim 4
Dependent Claim
148 words
A flexible mobile conveyor comprising a plurality of carriages, a pair of wheels supporting each carriage, an endless conveyor mounted on each carriage, drive means on each carriage engaging and driving the conveyor means, connections between each successive carriage whereby a portion of the conveyor of one overlies and feeds to the conveyor of the next and a portion of the said one conveyor is carried by said other, said connections including a swivel connection between each pair of carriages permitting generally universal movement between adjacent carriages, a main power source on one of said carriages and connections from said main power source driving the supporting wheels in each successive carriage, and wherein each conveyor is made up of two spaced rigid sidewalls cut away intermediate their ends and connected by a pair of flexible side plates and a pie shaped bottom plate beneath the flexible side plates.
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) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |