US4545946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and equipment for the compacting of concrete
Assignee: SR-KONE ENGINEERING A FINNISH CORP Oy
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Filing: 1984-02-09
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Granted: 1985-10-08
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Expires: 2004-02-09
Abstract
Abstract Method and equipment for compacting of concrete mix when concrete products are being cast by means of a continuous method. The concrete mix is carried from the feeder device (4) forwards by means of an endless transfer unit. The compression required for the compacting of the concrete mix is produced by means of a roll (1) pressed against the transfer face (2). The compression is directed at the concrete mix by the intermediate of rigid plates (2) of a caterpillar band constituting the transfer unit, which plates are pressed against the concrete mix by means of two or more support rolls (1).
Inventors
- 👤 Asko Sarja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:11
CPC Classifications
B; B28; B28B; B28B5/00; B28B5/02; B28B5/026; B28B5/027
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
A method of compacting concrete mix during the continuous casting of concrete products comprising the steps of providing a feeding device and an endless transfer unit which includes rigid plates of a caterpillar band and two or more support rolls, feeding concrete through said feeder device to the endless transfer unit, conveying the concrete through the endless transfer unit, and while the concrete is in the transfer unit, pressing the plates of the caterpillar band by means of said support rolls, adjusting the pressure applied by the plates by changing the position of said support rolls, and vibrating said support rolls.
Claim 2
Independent Claim
101 words
A method of compacting concrete mix during the continuous casting of concrete products comprising the steps of providing a feeding device and an endless transfer unit which includes rigid plates of a caterpillar band and two or more support rolls, feeding concrete through said feeder device to the endless transfer unit, conveying the concrete through the endless transfer unit, and while the concrete is in the transfer unit, pressing the plates of the caterpillar band by means of said support rolls, adjusting the pressure applied by the plates by changing the position of said support rolls, and vibrating said support rolls.
Claim 3
Dependent Claim
36 words
A method as claimed in claim 1, including the steps of passing the concrete mix between a caterpillar belt and a base, and compressing the mix between the plates in the caterpillar belt and the base.
Claim 4
Dependent Claim
32 words
A method as claimed in claim 1 including the step of passing the concrete mix between a pair of caterpillar belts each having rigid plates and support rolls pressing against the plates.
Claim 5
Independent Claim
79 words
An apparatus for the continuous casting of concrete products comprising a feeder device for feeding concrete mix and an endless transfer unit, said endless transfer unit comprising means for compacting the concrete mix including a caterpillar belt having a plurality of rigid plates and support rolls for pressing the plates against the concrete mix, said plates being movable to by-pass said support rolls, means for adjusting the distance between said support rolls and means for vibrating said support rolls.
Claim 6
Independent Claim
79 words
An apparatus for the continuous casting of concrete products comprising a feeder device for feeding concrete mix and an endless transfer unit, said endless transfer unit comprising means for compacting the concrete mix including a caterpillar belt having a plurality of rigid plates and support rolls for pressing the plates against the concrete mix, said plates being movable to by-pass said support rolls, means for adjusting the distance between said support rolls and means for vibrating said support rolls.
Claim 7
Dependent Claim
28 words
An apparatus as claimed in claim 4, wherein the distance between adjoining support rolls is no greater than half the width of the plates of the caterpillar belt.
Claim 8
Dependent Claim
32 words
An apparatus as claimed in claim 4 wherein several pairs of caterpillar belts are provided and each pair of caterpillar belts can be pressed towards each other by means of support rolls.
Claim 9
Dependent Claim
32 words
An apparatus as claimed in claim 5 wherein several pairs of caterpillar belts are provided and each pair of caterpillar belts can be pressed towards each other by means of support rolls.
Claim 10
Dependent Claim
29 words
An apparatus as claimed in claim 4, wherein a concrete base is provided and said caterpillar belt is pressed toward said concrete base by means of the support rolls.
Claim 11
Dependent Claim
29 words
An apparatus as claimed in claim 5, wherein a concrete base is provided and said caterpillar belt is pressed toward said concrete base by means of the support rolls.
References Cited (Backward Citations)
SU235586A1
Cited
US842356A
Cited
US1185399A
Cited
FR572324A
Cited
US2281860A
Cited
US2365804A
Cited
US2575092A
Cited
US2670515A
Cited
US2835016A
Cited
US3063362A
Cited
US3191522A
Cited
US3250835A
Cited
US3313010A
Cited
US3565650A
Cited
DE2037442A1
Cited
US3907473A
Cited
US3942927A
Cited
US3883285A
Cited
US3883284A
Cited
US4004873A
Cited
SU556035A1
Cited
US4197792A
Cited
SU961960A1
Cited
DE3046525A1
Cited
US4247269A
Cited
US4449910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-07 | 1997-04-08 | 1997-10-08 | $7700.00 | Window Closed / Lapsed |