US3694128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block molding apparatus
Assignee: Individual
•
Filing: 1970-05-06
•
Granted: 1972-09-26
•
Expires: 1990-05-06
Abstract
Abstract The side form panels of a concrete block mold, pivot outwardly to downwardly eject a molded block under the force of a pressure head within an automatic block molding machine. The mold frame while supported on a pallet, is vibrated and the concrete is compacted by the pressure head.
Inventors
- 👤 Benjamin F Foxen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:11
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/16; B28B7/18; B28B7/183; B28B15/00; B28B15/005; B28B7/0029; B28B7/0035; B28B7/0044; B28B7/0064; B28B7/007; B28B7/10; B28B7/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
154 words
In combination with a molding machine, a mold assembly comprising a frame having a pair of side brackets, a pair of end plates and spacers interconnecting the end plates with the side brackets, a plurality of panels forming a mold enclosure within the frame, first hinge means mounted by the spacers for pivotally suspending a first pair of the panels in spaced relation to the side brackets and the spacers, second hinge means mounted by the end plates for pivotally suspending a second pair of the panels in spaced relation to the end plates between said first pair of panels to form the mold enclosure, a suspension bar mounted on the end plates in straddling relation to said second pair of panels, core members depending from the suspension bar within the mold enclosure, and power operated means connected to the panels for pivotal displacement thereof outwardly toward the side brackets and the end plates.
Claim 2
Dependent Claim
154 words
In combination with a molding machine, a mold assembly comprising a frame having a pair of side brackets, a pair of end plates and spacers interconnecting the end plates with the side brackets, a plurality of panels forming a mold enclosure within the frame, first hinge means mounted by the spacers for pivotally suspending a first pair of the panels in spaced relation to the side brackets and the spacers, second hinge means mounted by the end plates for pivotally suspending a second pair of the panels in spaced relation to the end plates between said first pair of panels to form the mold enclosure, a suspension bar mounted on the end plates in straddling relation to said second pair of panels, core members depending from the suspension bar within the mold enclosure, and power operated means connected to the panels for pivotal displacement thereof outwardly toward the side brackets and the end plates.
Claim 3
Dependent Claim
62 words
The combination of claim 1 wherein said molding machine includes a vertically movable pallet table, means for displacing the table from an upper position engaging the panels of the mold assembly to a lower position, and means connected to the power operated means for effecting said outward displacement of the panels while the pallet table is being displaced to the lower position.
References Cited (Backward Citations)
US770677A
Cited
US801249A
Cited
US810019A
Cited
US804890A
Cited
US810343A
Cited
US812336A
Cited
US2587413A
Cited
US3176369A
Cited
US3277551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |