US3744164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportable conveyor for clearing surfaces
Assignee: Dunlop Holdings Ltd
•
Filing: 1971-04-12
•
Granted: 1973-07-10
•
Expires: 1991-04-12
Abstract
Abstract A towable device for clearing surfaces of mud and the like including a collector means, a pickup zone and a transporter means, extending from the pickup zone. A floor member is provided in the pickup zone onto which the collector means spills the material being collected. Blades are provided in part of the collector means for chanelling the material inwardly and then outwardly prior to meeting the collector means.
Inventors
- 👤 J Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:49
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06; E01H5/07; E01H5/073; B; B65; B65G; B65G65/00; E01H1/00; E01H1/10; E01H1/105; E01H1/106; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0326; B65G2814/0328; B65G2814/0331; B65G2814/0334
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
A portable conveyor for clearing surfaces comprising a pickup zone, collector means for channeling material into the pickup zone during forward movement of the collector means, said collector means being located rearwards of the pickup zone in the direction of said forward movement, transporting means for conveying the material from the pickup zone such that material channeled into the pickup zone is picked up by the transporting means, and a parting blade member provided in front of the pickup zone, wherein the parting blade member is arranged to deflect material to the collector means.
Claim 2
Dependent Claim
94 words
A portable conveyor for clearing surfaces comprising a pickup zone, collector means for channeling material into the pickup zone during forward movement of the collector means, said collector means being located rearwards of the pickup zone in the direction of said forward movement, transporting means for conveying the material from the pickup zone such that material channeled into the pickup zone is picked up by the transporting means, and a parting blade member provided in front of the pickup zone, wherein the parting blade member is arranged to deflect material to the collector means.
Claim 3
Dependent Claim
55 words
A conveyor as in claim 1 having scraper means in front of the collector means in the direction of forward movement of the collector means, said scraper means comprising scraper blade members resiliently mounted so as to scrape the surface being cleared to loosen the material prior to it being met by the collecting means.
Claim 4
Dependent Claim
69 words
A conveyor as in claim 1 wherein a pair of resiliently-mounted scraper blade members is provided one in front of and to either side of the parting blade member so constructed and arranged that the scraper blade members deflect material towards the parting blade member which subsequently deflects the material to either side of the pickup zone for collection by the collector means and guidance into the pickup zone.
Claim 5
Dependent Claim
48 words
A conveyor as in claim 1 wherein the transporting means comprises a series of paddles adapted to be driven along a channel member having a cross-section substantially similar to the shape of the paddles such that material within the channel is propelled along the channel by the paddles.
Claim 6
Dependent Claim
56 words
A conveyor as in claim 1 wherein the pickup zone has provided a floor member extending over at least part of the area in a horizontal plane of the pickup zone such that material channeled into the pickup zone moves into the floor member and is picked up from the floor member by the transporting means.
Claim 7
Dependent Claim
57 words
A conveyor as in claim 5 wherein the transporting means comprises a channel member which is substantially rectangular in section having a substantially flat lower surface and wherein the floor member of the pickup zone comprises an end portion of the lower surface such that the paddles propel material from the pickup zone along the transporting means.
Claim 8
Dependent Claim
96 words
A conveyor as in claim 5 wherein the floor member comprises a forward extension from the collector means and the collector means has provided a centre region which is curved in section and is further provided with an upward extension having a similar curvature said curvature of the centre region and the upward extension being such that they lap the paddles of the transporting means so that the paddles pick up material from the floor member and propel it upwardly around the curved centre region and upward extension whereupon the material falls onto the transporting means.
Claim 9
Dependent Claim
16 words
A conveyor as in claim 1 wherein the collector means comprises a resiliently mounted blade member.
Claim 10
Dependent Claim
27 words
A conveyor as in claim 1 wherein the collector means comprises a blade member which is flexible so that it may conform to the surface being cleared.
Claim 11
Dependent Claim
14 words
A conveyor as in claim 1 wherein said parting blade member is resiliently mounted.
References Cited (Backward Citations)
US150057A
Cited
US1017092A
Cited
US1142197A
Cited
US1206819A
Cited
US1269016A
Cited
US2695466A
Cited
US3049817A
Cited
US3232408A
Cited
US3263257A
Cited
US3449780A
Cited
US3465456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |