US4098562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced concrete block making machine
Assignee: ENERGY CONSERVATION TECHNIQUES Inc
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Filing: 1976-12-14
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Granted: 1978-07-04
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Expires: 1996-12-14
Abstract
Abstract A process and machine are described for the continuous production of reinforced concrete blocks in which a reinforcement member is cut and formed, positioned in an area of a molding station, a divided mold cavity is then defined about the reinforcement member and a paired block formed about the reinforcement member by introduction into the molding cavity of a hot slurry of cement fluid. The paired block thus formed is advanced on a pallet about circular conveyor means, passing through a curing area and ejection station where the cured block is removed from the pallet and the pallet returned to the molding station.
Inventors
- 👤 Albert R. Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:22
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/24; B28B23/00; B28B23/02; B28B23/028; B28B5/00; B28B5/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
327 words
An apparatus for the continuous production of reinforced concrete blocks comprising (1) a plurality of like pallets, each having a substantially planar upper surface with at least one opening defined therein; (2) a molding station, said station including (a) block molding means comprising upper and lower molding forms, said forms being separated moveable along a common vertical axis from a first molding position in which said lower molding form is indexed through the opening of one of said pallets at said molding station and together with said upper molding form and said pallet defines a block forming cavity, to a second, retracted position in which said lower molding form is at a position below said pallet and said upper molding form is at a position above said pallet at a height greater than the maximum height of the block being produced, (b) means operable to reciprocally move said upper molding form between said first and second position, (c) means operable to reciprocally move said lower molding form between said first and second position, (d) means operable to insert, when said upper molding form is in said second, retracted position, a reinforcement member into the area corresponding to said block forming cavity, (e) means operable to introduce under pressure a heated slurry of concrete fluid into said block forming cavity when both said upper and lower molding forms are in their first positions, and (f) means operable for applying pressure to said slurry in said cavity; (3) a curing area disposed downstream from said molding station, said curing area including means operable to remove excess moisture from said blocks; (4) an ejector station disposed downstream from said curing area and having means operable to remove a cured block from said pallet; and (5) circular conveyor means operable to carry said pallets through said molding station, said curing area and said ejector station, said circular conveyor means providing intermittent motion for said pallets at least through said molding station.
Claim 2
Independent Claim
327 words
An apparatus for the continuous production of reinforced concrete blocks comprising (1) a plurality of like pallets, each having a substantially planar upper surface with at least one opening defined therein; (2) a molding station, said station including (a) block molding means comprising upper and lower molding forms, said forms being separated moveable along a common vertical axis from a first molding position in which said lower molding form is indexed through the opening of one of said pallets at said molding station and together with said upper molding form and said pallet defines a block forming cavity, to a second, retracted position in which said lower molding form is at a position below said pallet and said upper molding form is at a position above said pallet at a height greater than the maximum height of the block being produced, (b) means operable to reciprocally move said upper molding form between said first and second position, (c) means operable to reciprocally move said lower molding form between said first and second position, (d) means operable to insert, when said upper molding form is in said second, retracted position, a reinforcement member into the area corresponding to said block forming cavity, (e) means operable to introduce under pressure a heated slurry of concrete fluid into said block forming cavity when both said upper and lower molding forms are in their first positions, and (f) means operable for applying pressure to said slurry in said cavity; (3) a curing area disposed downstream from said molding station, said curing area including means operable to remove excess moisture from said blocks; (4) an ejector station disposed downstream from said curing area and having means operable to remove a cured block from said pallet; and (5) circular conveyor means operable to carry said pallets through said molding station, said curing area and said ejector station, said circular conveyor means providing intermittent motion for said pallets at least through said molding station.
Claim 3
Dependent Claim
44 words
Apparatus according to claim 1 wherein said lower molding form is adapted to cooperate with said reinforcement member inserting means and to receive said reinforcement member when said lower form is in its first position and said upper form is in its second position.
Claim 4
Dependent Claim
43 words
Apparatus according to claim 2 wherein said reinforcement member inserting means introduce reinforcement members at right angles both to the axis along which said upper and lower molding forms move and to a tangent to said circular conveyor means at said molding station.
Claim 5
Dependent Claim
40 words
Apparatus according to claim 3 including means adjacent said molding stations and operable to cut and form said reinforcement members from continuous stock advancing along a line parallel to a tangent to said circular conveyor means at said molding station.
Claim 6
Dependent Claim
48 words
Apparatus according to claim 2 wherein said upper molding form includes an inner mold divider, said divider complementing said lower molding form when carrying said reinforcement member so as to define paired block forming cavities with portions of said reinforcement member extending into the base of said cavities.
Claim 7
Dependent Claim
20 words
Apparatus according to claim 5 wherein said upper and lower molding forms define a plurality of paired block forming cavities.
Claim 8
Dependent Claim
80 words
Apparatus according to claim 6 including means adjacent said molding station and operable to cut and form said reinforcement members in a whole number multiple of said plurality of paired cavities from continuous stock advancing along a line parallel to a tangent to said circular conveyor means at said molding station and said reinforcement member inserting means are operable to simultaneously introduce to the areas between said cavity pairs a quantity of said reinforcement members corresponding to said whole number.
Claim 9
Dependent Claim
16 words
Apparatus according to claim 1 wherein said curing area provides a source of high frequency radiation.
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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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |