Patent US3986812A successfully refreshed from Google Patents.
US3986812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold handling apparatus
Assignee: USM Corp
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Filing: 1975-04-14
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Granted: 1976-10-19
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Expires: 1995-04-14
Abstract
Abstract A mold handling device is provided which is suitable for use in the manufacture of articles molded in a wide variety of shapes and sizes from a plastic material such as polyurethane. First and second mold supports are provided to which mating mold portions are respectively secured. The device comprises means to provide mold opening and mold closing relative linear movements between the two mold supports, and drive means are provided to effect pivotal movement of the two supports about a pivot axis which extends transversely to the linear movement between the mold supports. One of the mold supports is mounted for independent pivotal movement about the same pivot axis whereby the arrangement facilitates access to each mold portion when the mold is open.
Inventors
- 👤 Joseph Barker
- 👤 Terence J. L. Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:01
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/20
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
133 words
Mold handling apparatus comprising a frame on which is mounted first mold support means to which a first mold portion is to be secured and second mold support means to which a second mold portion is to be secured, drive means connected at least one of said mold support means and operative during use of the apparatus to effect substantially linear mold closing and mold opening relative movements between the two mold support means, each of said two mold support means being mounted for pivotal movement relative to said frame about a substantially horizontal pivot axis which extends transversely of the direction of said substantially linear movements, and each of said two mold support means being mounted for pivotal movement about said pivot axis independently of the other of said mold support means.
Claim 2
Dependent Claim
133 words
Mold handling apparatus comprising a frame on which is mounted first mold support means to which a first mold portion is to be secured and second mold support means to which a second mold portion is to be secured, drive means connected at least one of said mold support means and operative during use of the apparatus to effect substantially linear mold closing and mold opening relative movements between the two mold support means, each of said two mold support means being mounted for pivotal movement relative to said frame about a substantially horizontal pivot axis which extends transversely of the direction of said substantially linear movements, and each of said two mold support means being mounted for pivotal movement about said pivot axis independently of the other of said mold support means.
Claim 3
Dependent Claim
48 words
The apparatus of claim 1 which further includes guideway means having said second mold support means mounted thereon and being pivotally movable about said pivot axis, and wherein said drive means comprises a double-acting fluid powered cylinder connected between said guide means and said second mold support means.
Claim 4
Dependent Claim
66 words
The apparatus of claim 1 further includes first mold rotating drive means connected between said first mold support and said frame for rotating said first mold support means about said pivot axis, and second mold rotating drive means connected between said second mold support means and said frame and independent of said first drive means, for rotating said second mold support means about said pivot axis.
Claim 5
Dependent Claim
39 words
The apparatus of claim 3 wherein each of said first mold rotating drive means and said second mold rotating drive means comprise a double-acting fluid cylinder connected between said frame and said respective first or second mold support means.
Claim 6
Dependent Claim
48 words
The apparatus of claim 4 which further includes guideway means having said second mold support means mounted thereon and being pivotally movable about said pivot axis, and wherein said drive means comprises a double-acting fluid powered cylinder connected between said guideway means and said second mold support means.
Claim 7
Dependent Claim
186 words
Mold handling apparatus comprising a frame on which is mounted first mold support means to which a first mold portion is to be secured, and second mold support means to which a second mold portion is to be secured, drive means connected to at least one of said mold support means and operative during use of the apparatus to effect mold closing and mold opening relative movements between said two mold support means, guideway means mounted for pivotal movement relative to said frame about a pivot axis, one of said two mold support means being mounted for substantially linear movement along said guideway means independently of the other of said mold support means, said pivot axis extending transversely of the direction of said substantially linear movement, first mold rotating drive means connected between said first mold support means and said frame for rotating said first mold support means about said pivot axis, and second mold rotating drive means connected between said second mold support means and said frame and independent of said first drive means, for rotating said second mold support means about said pivot axis.
Claim 8
Dependent Claim
186 words
Mold handling apparatus comprising a frame on which is mounted first mold support means to which a first mold portion is to be secured, and second mold support means to which a second mold portion is to be secured, drive means connected to at least one of said mold support means and operative during use of the apparatus to effect mold closing and mold opening relative movements between said two mold support means, guideway means mounted for pivotal movement relative to said frame about a pivot axis, one of said two mold support means being mounted for substantially linear movement along said guideway means independently of the other of said mold support means, said pivot axis extending transversely of the direction of said substantially linear movement, first mold rotating drive means connected between said first mold support means and said frame for rotating said first mold support means about said pivot axis, and second mold rotating drive means connected between said second mold support means and said frame and independent of said first drive means, for rotating said second mold support means about said pivot axis.
Claim 9
Dependent Claim
39 words
The apparatus of claim 6 wherein each of said first mold rotating drive means and said second mold rotating drive means comprise a double-acting fluid cylinder connected between said frame and said respective first or second mold support means.
Claim 10
Dependent Claim
153 words
Mold handling apparatus comprising a frame on which is mounted first mold support means to which a first mold portion is to be secured, and second mold support means to which a second mold portion is to be secured, guideway means having one of said two mold support means mounted thereon for substantially linear movement along said guideway means and said guideway means and the other of said two mold support means being mounted for independent pivotal movement relative to said frame about a pivot axis which extends transversely of the direction of said substantially linear movement, the apparatus further comprising drive means connected to said mold supports and operative during use of the apparatus to effect pivotal movement of the two mold support means about said pivot axis, and to effect said substantially linear movement of said one of two mold support means to effect mold closing and mold opening movements thereof.
Claim 11
Dependent Claim
153 words
Mold handling apparatus comprising a frame on which is mounted first mold support means to which a first mold portion is to be secured, and second mold support means to which a second mold portion is to be secured, guideway means having one of said two mold support means mounted thereon for substantially linear movement along said guideway means and said guideway means and the other of said two mold support means being mounted for independent pivotal movement relative to said frame about a pivot axis which extends transversely of the direction of said substantially linear movement, the apparatus further comprising drive means connected to said mold supports and operative during use of the apparatus to effect pivotal movement of the two mold support means about said pivot axis, and to effect said substantially linear movement of said one of two mold support means to effect mold closing and mold opening movements thereof.
Claim 12
Dependent Claim
25 words
The apparatus of claim 8 wherein said drive means comprises a plurality of double-acting fluid cylinders connected to said first and second mold supporting means.
Claim 13
Dependent Claim
25 words
The apparatus of claim 8 wherein said two mold support means are each movable about said pivot axis through an angle of at least 90°.
References Cited (Backward Citations)
US3840317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |