US4714154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material and transfer loading apparatus
Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
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Filing: 1986-12-16
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Granted: 1987-12-22
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Expires: 2006-12-16
Abstract
Abstract A loading apparatus comprises a ramp defining a loading surface and a pair of loading blades each having a triangular cross-section with a nearly perpendicular front face and a shallow inclined rear face relative to a desired delivery direction for material collecting on the loading surface. The blades are oscillated back and forth about upstanding pivot axes relative to the loading surface. Between the blades is a component or some other means defining a step with a similar configuration to the blades with a steep front face relative to the delivery direction and a shallow inclined rear face. The step defining means assists the blades in the loading work.
Inventors
- 👤 Karl Harhoff
- 👤 Egon Melis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/02; B65G65/08; B65G65/10; B65G65/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
168 words
Loading apparatus for use in loading loose material; said apparatus comprising means defining a loading surface for receiving the material, first and second loading blades, means for pivotably supporting the blades relative to the loading surface, each loading blade having a first front face which extends at a relatively steep angle in relation to the loading surface and a second rear face which extends at a relatively shallow angle in relation to the loading surface, means for pivotably moving the loading blades in unison back and forth over the loading surface in a reciprocable manner in delivery and return strokes to cause the material to be transferred over the loading surfaces predominantly by the first faces of the blades and means defining a fixed step between the blades to assist the transfer of material by the blades, said step having a front face relative to the blade which is foremost relative to the delivery strokes which extends at a comparatively steep angle in relation to the loading surface.
Claim 2
Dependent Claim
168 words
Loading apparatus for use in loading loose material; said apparatus comprising means defining a loading surface for receiving the material, first and second loading blades, means for pivotably supporting the blades relative to the loading surface, each loading blade having a first front face which extends at a relatively steep angle in relation to the loading surface and a second rear face which extends at a relatively shallow angle in relation to the loading surface, means for pivotably moving the loading blades in unison back and forth over the loading surface in a reciprocable manner in delivery and return strokes to cause the material to be transferred over the loading surfaces predominantly by the first faces of the blades and means defining a fixed step between the blades to assist the transfer of material by the blades, said step having a front face relative to the blade which is foremost relative to the delivery strokes which extends at a comparatively steep angle in relation to the loading surface.
Claim 3
Dependent Claim
30 words
Apparatus according to claim 1, wherein the step also has a rear surface relative to said foremost blade which extends at a comparatively shallow angle relative to the loading surface.
Claim 4
Dependent Claim
19 words
Apparatus according to claim 1, wherein the means defining the step is a component fixed to the loading surface.
Claim 5
Dependent Claim
20 words
Apparatus according to claim 1, and further comprising coupling means for interconnecting the first and second blades for common movement.
Claim 6
Dependent Claim
28 words
Apparatus according to claim 4, wherein the coupling means is a rod adjustable in length to vary the stroke of one of said first and second loading blades.
Claim 7
Dependent Claim
20 words
Apparatus according to claim 1, wherein the drive means is a piston and cylinder unit located beneath the loading surface.
Claim 8
Dependent Claim
29 words
Apparatus according to claim 1, wherein the foremost blade has a greater length measured from its pivot axis to its distal end than that of the other following blade.
Claim 9
Dependent Claim
24 words
Apparatus according to claim 1, wherein the angle of pivotal movement of the foremost blade is greater than that of the rear following blade.
Claim 10
Dependent Claim
33 words
Apparatus according to claim 1, wherein the pivot axis of the other following loading blade relative to the delivery strokes is spaced from its front face in a direction towards the foremost blade.
Claim 11
Dependent Claim
35 words
Apparatus according to claim 1, wherein the pivot axis of the foremost blade is disposed forwardly in a direction towards a delivery zone of the material in relation to the front face of the blade.
Claim 12
Dependent Claim
24 words
Apparatus according to claim 1, wherein the loading surface is limited by an upstanding wall facing the rear face of the other following blade.
Claim 13
Dependent Claim
66 words
Apparatus according to claim 1, wherein the foremost loading blade adopts an end position on the return stroke with its rear face closely adjacent the front face of the step defining means and wherein the rearmost loading blade relative to the delivery strokes adopts an end position on the forward delivery stroke with its front face closely adjacent a rear face of the step defining means.
Claim 14
Dependent Claim
55 words
Apparatus according to claim 1, embodied as a unit on one side of a scraper-chain conveyor operably associated with a partial cutting machine which conveyor also has a further similar apparatus as a unit located on the other side thereof, the units forming a symmetrical arrangement with each unit delivering material independently to the conveyor.
References Cited (Backward Citations)
US3525446A
Cited
US3680920A
Cited
US4236627A
Cited
GB1567931A
Cited
DE2645396A1
Cited
DE3015582A1
Cited
US4605119A
Cited
DE3304908A1
Cited
DE3400868A1
Cited
GB2157639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-21 | 1991-06-22 | 1991-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-21 | 1995-06-22 | 1995-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-21 | 1999-06-22 | 1999-12-22 | $7700.00 | Window Closed / Lapsed |