US3582034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold for casting a breakwater concrete block
Assignee: Individual
•
Filing: 1969-01-06
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Granted: 1971-06-01
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Expires: 1989-01-06
Abstract
Abstract A mold for casting breakwater concrete blocks defining a block having a central hexahedron body and six symmetrically spaced legs radiating from the six surfaces of said body, each of said legs being in the form of a truncated pyramid, said mold being divided into symmetrical mold portions along two symmetrical planes, each of said planes including an axis of said mold, each of said portions being provided with flanges along its periphery adapted to permit the joining of said portions.
Inventors
- 👤 Yoshiro Tsuzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:26
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/129; B; B28; B28B; B28B7/00; B28B7/0029; B28B7/0035; B28B7/0038; B28B7/0041; Y; Y02; Y02A; Y02A10/00; Y02A10/11
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
165 words
A mold for casting breakwater blocks comprising a plurality of mold sections defining a block having a central hexahedron body and six symmetrically spaced legs radiating from the six surfaces of said hexahedron body, each of said legs being in the form of a truncated pyramid, four of said legs defining a pair of perpendicular axes lying in a substantially horizontal plane, the remaining pair of said legs defining a substantially vertical axis and defining top and bottom legs, said mold sections being formed with a first opening defining the top surface of said top leg and a second opening defining the bottom surface of said bottom leg, the parting lines of said mold sections being defined by two symmetrical planes, each including an axis of said block, said mold Sections being formed with peripheral flanges, adjacent peripheral flanges being adapted to be releasably secured together, whereby said mold is adapted to be assembled into a unitary mold and disassembled into its component mold sections.
Claim 2
Dependent Claim
165 words
A mold for casting breakwater blocks comprising a plurality of mold sections defining a block having a central hexahedron body and six symmetrically spaced legs radiating from the six surfaces of said hexahedron body, each of said legs being in the form of a truncated pyramid, four of said legs defining a pair of perpendicular axes lying in a substantially horizontal plane, the remaining pair of said legs defining a substantially vertical axis and defining top and bottom legs, said mold sections being formed with a first opening defining the top surface of said top leg and a second opening defining the bottom surface of said bottom leg, the parting lines of said mold sections being defined by two symmetrical planes, each including an axis of said block, said mold Sections being formed with peripheral flanges, adjacent peripheral flanges being adapted to be releasably secured together, whereby said mold is adapted to be assembled into a unitary mold and disassembled into its component mold sections.
Claim 3
Dependent Claim
47 words
A mold for casting breakwater concrete blocks, as recited in claim 1, wherein said two symmetrical planes defining said mold sections are substantially vertical and normal to each other, intersecting at the vertical axis of said mold, each of said plane substantially bisecting four of said legs.
Claim 4
Dependent Claim
47 words
A mold for casting breakwater concrete blocks as recited in claim 1, wherein said two symmetrical planes defining said mold sections consists of a horizontal plane substantially bisecting said mold and including the horizontal axis thereof and a vertical plane including the vertical axis of said block.
Claim 5
Dependent Claim
48 words
A mold for casting breakwater concrete blocks as recited in claim 3, wherein said mold comprises three sections, the first of said sections comprises the portion of the mold above said horizontal plane, said second and third sections comprising the portion of said mold below said horizontal plane.
Claim 6
Dependent Claim
69 words
A mold for casting breakwater concrete blocks as recited in claim 1, wherein said two symmetrical planes defining said mold sections comprises a pair of vertical planes intersecting substantially at the vertical axis of said mold, the first of said planes including a first pair of opposed vertical edges of said hexahedron body, the other of said planes including the other pair of vertical edges of said hexahedron body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |