US3833331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming building blocks
Assignee: Besser Co
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Filing: 1972-07-21
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Granted: 1974-09-03
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Expires: 1992-07-21
Abstract
Abstract Apparatus for forming a building block, having conventional vertically extending, upwardly opening block cavities with a longitudinally extending channel in its lower surface. The block is made in a vibrated mold box assembly, open at its upper and lower ends, and a pallet is movable into position to form a removable mold cavity closing bottom wall for the assembly. A longitudinally removable core, which is resiliently mounted on a core adapter so that it can vibrate with the mold box assembly, is moved from a removed position to a position beneath the mold cavity and the pallet is then moved vertically to sandwich the core between the mold and pallet. After cementitious material is introduced into the mold cavity to form the block and the assembly is vibrated, the core is removed, and the block and pallet are then vertically stripped from the mold assembly and moved away for further processing.
Inventors
- 👤 T Springs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:10
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/16; B28B7/162; B28B1/00; B28B1/08; B28B1/093; B28B1/0935
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
229 words
Apparatus for forming a cementitious block comprising: supporting frame means; means thereon for forming a mold cavity including a relatively movable mold assembly and a pallet adjacent the lower end thereof for closing the lower end thereof, and a movably mounted longitudinally extending core movable between a removed position and an operative position in which it is disposed between said pallet and said mold assembly; means supported by said frame means mounting said longitudinally extending core for movement in a longitudinal and vertical path of travel between said positions including means mounting said core for movement to a position below said mold assembly, thence upwardly to said operative position; means supported by said frame means for moving said core between said removed and operative positions including means for upwardly moving said pallet to move said core from said position below said mold assembly toward said mold assembly to said operative position to close the lower end of said mold assembly; means supported by said frame means for pouring cementitious material over said core and said pallet in said mold cavity to form the block; means supported by said frame means for relatively moving said core and said pallet to separate the core therefrom; and means supported by said frame means for relatively moving said block and pallet and said mold assembly to remove the block from the mold assembly.
Claim 2
Dependent Claim
229 words
Apparatus for forming a cementitious block comprising: supporting frame means; means thereon for forming a mold cavity including a relatively movable mold assembly and a pallet adjacent the lower end thereof for closing the lower end thereof, and a movably mounted longitudinally extending core movable between a removed position and an operative position in which it is disposed between said pallet and said mold assembly; means supported by said frame means mounting said longitudinally extending core for movement in a longitudinal and vertical path of travel between said positions including means mounting said core for movement to a position below said mold assembly, thence upwardly to said operative position; means supported by said frame means for moving said core between said removed and operative positions including means for upwardly moving said pallet to move said core from said position below said mold assembly toward said mold assembly to said operative position to close the lower end of said mold assembly; means supported by said frame means for pouring cementitious material over said core and said pallet in said mold cavity to form the block; means supported by said frame means for relatively moving said core and said pallet to separate the core therefrom; and means supported by said frame means for relatively moving said block and pallet and said mold assembly to remove the block from the mold assembly.
Claim 3
Dependent Claim
68 words
The Apparatus set forth in claim 1 wherein said means mounting said core for movement comprises carriage means movable in a to-and-fro horizontal path between a removed position and a position adjacent said mold assembly, and core support means mounting said core on said carriage means with a lost motion connection permitting said core to be moved vertically by said pallet moving means relative to said carriage means.
Claim 4
Dependent Claim
342 words
Apparatus for forming a cementitious block comprising: supporting frame means; means thereon for forming a mold cavity including a relatively movable mold assembly and a pallet adjacent the lower end thereof for closing the lower end thereof, and a movably mounted longitudinally extending core movable between a removed position and an operative position in which it is disposed between said pallet and said mold assembly; means supported by said frame means mounting said longitudinally extending core for movement in a longitudinal and vertical path of travel between said positions including means mounting said core for movement to a position below said mold assembly, thence upwardly to said operative position; means supported by said frame means for moving said core between said removed and operAtive positions including means for upwardly moving said pallet to move said core from said position below said mold assembly toward said mold assembly to said operative position to close the lower end of said mold assembly; means supported by said frame means for pouring cementitious material over said core and said pallet in said mold cavity to form the block; means supported by said frame means for relatively moving said core and said pallet to separate the core therefrom; and means supported by said frame means for relatively moving said block and pallet and said mold assembly to remove the block from the mold assembly; said means mounting said core for movement comprising carriage means movable in a to-and-fro horizontal path between a removed position and a position adjacent said mold assembly, and core support means mounting said core on said carriage means with a lost motion connection permitting said core to be moved vertically by said pallet moving means relative to said carriage means; said lost motion connection comprising vertical slot means in one of said carriage means and core support means and slide shaft means coupling said carriage means and core support means and received in said vertical slot means for vertical movement therein, said core support means being slidably mounted on said slide shaft means.
Claim 5
Dependent Claim
342 words
Apparatus for forming a cementitious block comprising: supporting frame means; means thereon for forming a mold cavity including a relatively movable mold assembly and a pallet adjacent the lower end thereof for closing the lower end thereof, and a movably mounted longitudinally extending core movable between a removed position and an operative position in which it is disposed between said pallet and said mold assembly; means supported by said frame means mounting said longitudinally extending core for movement in a longitudinal and vertical path of travel between said positions including means mounting said core for movement to a position below said mold assembly, thence upwardly to said operative position; means supported by said frame means for moving said core between said removed and operAtive positions including means for upwardly moving said pallet to move said core from said position below said mold assembly toward said mold assembly to said operative position to close the lower end of said mold assembly; means supported by said frame means for pouring cementitious material over said core and said pallet in said mold cavity to form the block; means supported by said frame means for relatively moving said core and said pallet to separate the core therefrom; and means supported by said frame means for relatively moving said block and pallet and said mold assembly to remove the block from the mold assembly; said means mounting said core for movement comprising carriage means movable in a to-and-fro horizontal path between a removed position and a position adjacent said mold assembly, and core support means mounting said core on said carriage means with a lost motion connection permitting said core to be moved vertically by said pallet moving means relative to said carriage means; said lost motion connection comprising vertical slot means in one of said carriage means and core support means and slide shaft means coupling said carriage means and core support means and received in said vertical slot means for vertical movement therein, said core support means being slidably mounted on said slide shaft means.
Claim 6
Dependent Claim
235 words
Apparatus for forming a cementitious block comprising: supporting frame means; means thereon for forming a mold cavity including a relatively movable mold assembly and a pallet adjacent the lower end thereof for closing the lower end thereof, and a movably mounted longitudinally extending core movable between a removed position and an operative position in which it is disposed between said pallet and said mold assembly when the pallet is in closed position; means supported by said frame means mounting said core for movement in a path longitudinally to a position below said mold assembly, thence upwardly to operative position, thence for longitudinal withdrawal movement, and thence downwardly before repeating the cycle; means supported by said frame means for longitudinally moving said core to said position below said mold assembly and for longitudinally withdrawing said core; means for upwardly moving said pallet to said closed position to move said core upwardly therewith from said position below said mold assembly to said operative position to form a closed mold cavity; means supported by said frame means for pouring cementitious material over said core and said pallet in said mold cavity to form the block; means supported by said frame means for relatively moving said core and said pallet to separate the core therefrom; and means supported by said frame means for relatively moving said block and said mold assembly to remove the block from the mold assembly.
Claim 7
Dependent Claim
235 words
Apparatus for forming a cementitious block comprising: supporting frame means; means thereon for forming a mold cavity including a relatively movable mold assembly and a pallet adjacent the lower end thereof for closing the lower end thereof, and a movably mounted longitudinally extending core movable between a removed position and an operative position in which it is disposed between said pallet and said mold assembly when the pallet is in closed position; means supported by said frame means mounting said core for movement in a path longitudinally to a position below said mold assembly, thence upwardly to operative position, thence for longitudinal withdrawal movement, and thence downwardly before repeating the cycle; means supported by said frame means for longitudinally moving said core to said position below said mold assembly and for longitudinally withdrawing said core; means for upwardly moving said pallet to said closed position to move said core upwardly therewith from said position below said mold assembly to said operative position to form a closed mold cavity; means supported by said frame means for pouring cementitious material over said core and said pallet in said mold cavity to form the block; means supported by said frame means for relatively moving said core and said pallet to separate the core therefrom; and means supported by said frame means for relatively moving said block and said mold assembly to remove the block from the mold assembly.
Claim 8
Dependent Claim
73 words
The apparatus set forth in claim 4 wherein said core mounting means comprises carriage means movable in a longitudinal path between a removed position and a position adjacent said mold assembly and core support means freely movable on said carriage means in a vertical path between a lowered position supported by said carriage means and a vertically removed position in which said core support means can move freely of said core mounting means.
References Cited (Backward Citations)
US3679340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |