Patent US3746488A successfully refreshed from Google Patents.
US3746488A
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Apparatus for removably holding mold cavity sections to mold plates
Assignee: Precision Seal Inc
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Filing: 1971-12-13
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Granted: 1973-07-17
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Expires: 1991-12-13
Abstract
Abstract Tools, such as compression mold cavity sections, are easily and quickly removably mounted on plates, such as compression mold plates, by providing the plates with a plurality of openings therein, adapted to receive a mating extension of the tool. The plate also has a plurality of slots perpendicular to and intersecting the openings, for receiving a key or slide bar retainer. The tool extensions have a keyway or groove mating with the slot for removably receiving the slide bar. The edges of the slide bars have notches or recesses corresponding in shape to the shape of the openings, whereby the slide bars can be moved a short distance from a tool-locking position to a tool-releasing position where the recesses register with or correspond to the openings to release the tools, without the need for withdrawing the slide bar entirely out from the plate. A plurality of different types of mold cavity sections can be held to the same mold plates in this way and different tools can be interchangeably connected to the same retainer plate as long as the tools each include a properly grooved extension adapted to extend into the plate opening and to matingly receive the slide bar.
Inventors
- 👤 E Messenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:52
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/30; B29C33/305; B21; B21D; B21D37/00; B21D37/04; B29C33/0022; B30; B30B; B30B15/00; B30B15/02; B30B15/026; Y; Y10; Y10S; Y10S425/00; Y10S425/047
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
306 words
Apparatus for removably holding a tool onto a tool-retaining plate comprising: a. a tool-retaining plate having a plurality of identical openings extending approximately perpendicular to said plate and partway into said plate, said openings being adapted to receive said tools, b. a plurality of slots extending at least partway through said plate approximately perpendicular to the axes of said openings, at least a portion of each of said slots intersecting at least a portion of a plurality of said openings, c. an elongated slide bar slidably positioned in each of said slots, and each slide bar extending at least partway into a plurality of said openings for lockingly engaging a tool received in one of said openings, d. said openings being positioned in a regular rectilinear array comprising a plurality of straight rows and straight columns perpendicular to the rows of equally spaced-apart openings in both the rows and columns, with the rows being perpendicular to the front edge of the plate, and wherein said slots are parallel to said rows of openings and wherein there are two slots intersecting each opening on opposite sides thereof, e. said tool extension including a groove mating with said slot for receiving a slide bar for holding said tool onto said plaTe, f. a plurality of different tools all having an identical one of said extensions, g. said slide bars each including two parallel, tool-retaining side edges, each of which edges intersect all openings in a particular row, each of said edges including a plurality of spaced-apart recesses corresponding to the shape of said openings and being spaced-apart the same distance as are said openings, whereby said slide bar is in its tool-releasing position when said recesses register with said openings, and h. said apparatus being a compression mold assembly and said tool being a compression mold cavity section.
Claim 2
Dependent Claim
306 words
Apparatus for removably holding a tool onto a tool-retaining plate comprising: a. a tool-retaining plate having a plurality of identical openings extending approximately perpendicular to said plate and partway into said plate, said openings being adapted to receive said tools, b. a plurality of slots extending at least partway through said plate approximately perpendicular to the axes of said openings, at least a portion of each of said slots intersecting at least a portion of a plurality of said openings, c. an elongated slide bar slidably positioned in each of said slots, and each slide bar extending at least partway into a plurality of said openings for lockingly engaging a tool received in one of said openings, d. said openings being positioned in a regular rectilinear array comprising a plurality of straight rows and straight columns perpendicular to the rows of equally spaced-apart openings in both the rows and columns, with the rows being perpendicular to the front edge of the plate, and wherein said slots are parallel to said rows of openings and wherein there are two slots intersecting each opening on opposite sides thereof, e. said tool extension including a groove mating with said slot for receiving a slide bar for holding said tool onto said plaTe, f. a plurality of different tools all having an identical one of said extensions, g. said slide bars each including two parallel, tool-retaining side edges, each of which edges intersect all openings in a particular row, each of said edges including a plurality of spaced-apart recesses corresponding to the shape of said openings and being spaced-apart the same distance as are said openings, whereby said slide bar is in its tool-releasing position when said recesses register with said openings, and h. said apparatus being a compression mold assembly and said tool being a compression mold cavity section.
Claim 3
Dependent Claim
298 words
A compression mold plate assembly comprising: a. an upper mold plate and a lower mold plate, each of said mold plates including on the surface thereof facing the other plate, a regular rectilinear array of identical, cylindrical openings extending partway therethrough, including a plurality of straight rows of openings and a plurality of straight columns of openings perpendicular to the rows, said openings being equally spaced-apart in both said columns and rows, said openings extending perpendicular to the plane of said plate; b. a plurality of straight, parallel, equally spaced-apart slots through each of said mold plates and perpendicular to the axes of said openings, at least a portion of each slot intersecting at least a portion of all openings in two adjacent rows of openings; c. an elongated slide bar slidably positioned in each of said slots, each of said slide bars having a pair of tool-retaining side edges extending at least partway into each of said openings, when said slide bar is in its tool-retaining position; d. a plurality of mold cavity sections having cylindrical extensions mating with and extending into said openings, each of said extensions having an annular groove therearound positioned to register with said slots for receiving an edge of one of said slide bars on each of two opposite sides thereof, for releasably holding said mold cavity sections in said openings; and e. each of said slide bars having a plurality of spaced-apart recesses along their tool-retaining edges, said recesses corresponding to the shape of said openings and said recesses being spaced-apart the same distance as are said openings in said rows, whereby said slide bars can be moved between a release position wherein said recesses register with said openings, and a locking position wherein said edges are received within said grooves.
Claim 4
Dependent Claim
298 words
A compression mold plate assembly comprising: a. an upper mold plate and a lower mold plate, each of said mold plates including on the surface thereof facing the other plate, a regular rectilinear array of identical, cylindrical openings extending partway therethrough, including a plurality of straight rows of openings and a plurality of straight columns of openings perpendicular to the rows, said openings being equally spaced-apart in both said columns and rows, said openings extending perpendicular to the plane of said plate; b. a plurality of straight, parallel, equally spaced-apart slots through each of said mold plates and perpendicular to the axes of said openings, at least a portion of each slot intersecting at least a portion of all openings in two adjacent rows of openings; c. an elongated slide bar slidably positioned in each of said slots, each of said slide bars having a pair of tool-retaining side edges extending at least partway into each of said openings, when said slide bar is in its tool-retaining position; d. a plurality of mold cavity sections having cylindrical extensions mating with and extending into said openings, each of said extensions having an annular groove therearound positioned to register with said slots for receiving an edge of one of said slide bars on each of two opposite sides thereof, for releasably holding said mold cavity sections in said openings; and e. each of said slide bars having a plurality of spaced-apart recesses along their tool-retaining edges, said recesses corresponding to the shape of said openings and said recesses being spaced-apart the same distance as are said openings in said rows, whereby said slide bars can be moved between a release position wherein said recesses register with said openings, and a locking position wherein said edges are received within said grooves.
Claim 5
Dependent Claim
18 words
The apparatus according to claim 2 including means for individually locking said slide bars in their locking position.
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |