US5624077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete cyclone reclaimer
Assignee: Henry Manufacturing Co Inc
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Filing: 1995-04-07
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Granted: 1997-04-29
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Expires: 2015-04-07
Abstract
Abstract The present invention is a novel concrete reclaimer cylinder with a closed chamber and a screen chamber. The reclaimer is disposed in a non-horizontal position such that screen chamber is positioned lower than the closed chamber and driven to rotate. Concrete product is received into the closed chamber at its receiving end and is washed with water to produce cement slurry. The cement slurry flows out of the closed chamber at the receiving end leaving a mixture of sand and gravel in the closed chamber. The sand and gravel mixture is advanced through the closed chamber by eight triangular blades. Each blade is planar in shape, with a screen portion disposed within each blade face, with a perpendicular portion extending from the front edge to direct the sand and gravel mixture through an aperture and into the screen chamber. The sand and gravel mixture is received in a rotating screen and washed by high pressure spray to separate the two constituents. The sand permeates the rotating screen while the gravel remains inside the rotating screen. The cement slurry, sand and gravel are collected in separate containers for future use.
Inventors
- 👤 Henry S. Branscome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:14
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/48; B03B5/56; B03B9/00; B03B9/06; B03B9/061; B03B9/063; B07; B07B; B07B1/00; B07B1/18; B07B1/22; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/52; Y02W30/58
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
57 words
A concrete reclaimer apparatus comprising: a closed chamber and a screen chamber; said closed chamber comprising a receiving end and a plurality of blades; each of said plurality of blades comprising a screen portion; said screen chamber comprising a discharge end and a screen means; and said closed chamber and said screen chamber separated by an aperture.
Claim 2
Dependent Claim
17 words
The concrete reclaimer apparatus according to claim 1 wherein said apparatus being oriented in a non-horizontal position.
Claim 3
Dependent Claim
19 words
The concrete reclaimer apparatus according to claim 2 wherein said discharge end is disposed lower than said receiving end.
Claim 4
Dependent Claim
19 words
The concrete reclaimer apparatus according to claim 1 wherein said screen chamber comprises a plurality of high pressure nozzles.
Claim 5
Dependent Claim
16 words
The concrete reclaimer apparatus according to claim 1 wherein said plurality of blades penetrates said aperture.
Claim 6
Dependent Claim
30 words
The concrete reclaimer apparatus according to claim 5 wherein each of said plurality of blades are substantially planar and comprise a triangular portion; said triangular portion having a front edge.
Claim 7
Dependent Claim
21 words
The concrete reclaimer apparatus according to claim 6 wherein said blades comprise a directing means disposed perpendicular to the front edge.
Claim 8
Dependent Claim
55 words
The concrete reclaimer apparatus according to claim 1 further comprising a drive means for rotating said apparatus; said drive means comprising a pair of drive wheels disposed on a side of said apparatus and a single axle comprising a differential gear means; said drive wheels driven by a motor connected to said differential gear means.
Claim 9
Dependent Claim
18 words
The concrete reclaimer apparatus according to claim 1 in which cement slurry flows out through said receiving end.
Claim 10
Dependent Claim
19 words
The concrete reclaimer apparatus according to claim 1 in which sand and gravel are separated by said screen means.
Claim 11
Dependent Claim
117 words
A concrete reclaimer apparatus comprising: a closed chamber and a screen chamber; said closed chamber comprising a receiving end for receiving concrete product; said closed chamber further comprising a plurality of blades; each of said plurality of blades being substantially planar and comprising a triangular portion and a screen portion; said triangular portion comprising a front edge and a screen portion; said front edge comprising a directing means perpendicular thereto; said screen chamber comprising a screen means; said screen chamber having a discharge end for discharging gravel; said closed chamber and said screen chamber separated by an aperture; said apparatus disposed in a non-horizontal orientation such that said discharge end is positioned lower than said receiving end.
Claim 12
Dependent Claim
187 words
A concrete reclaiming method for separating concrete into its constituent parts, said method comprising the steps of: feeding concrete into a rotating closed chamber oriented in a non-horizontal position; said non-horizontal position enabling the mixture egress through the closed chamber by the force of gravity; producing a cement slurry in the closed chamber by the addition of water to the cement; draining said cement slurry out of the closed chamber leaving a mixture of sand and gravel; rotating a plurality of blades about a center-point of said closed chamber, further separating said cement slurry from said sand and gravel through a screen portion in each of said plurality of blades; said rotating the plurality of blades, and the force of gravity, directing said mixture through an aperture into a screen chamber with a rotating screen; subjecting said mixture to a high pressure wash; said high pressure wash and rotation of said screen chamber result in sand particles permeating said screen and gravel chunks remaining in said screen chamber; discharging said gravel from the screen chamber; collecting said cement slurry, said sand and said gravel in separate containers.
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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) | 2000-04-28 | 2000-10-28 | 2001-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-28 | 2004-10-28 | 2005-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-28 | 2008-10-28 | 2009-04-29 | $7700.00 | Window Closed / Lapsed |