Patent US3792947A successfully refreshed from Google Patents.
US3792947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding apparatus
Assignee: Individual
•
Filing: 1972-07-10
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Granted: 1974-02-19
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Expires: 1992-07-10
Abstract
Abstract A hot molding apparatus wherein as the molding elements are removed from the heated molding press, the upper molding element moves along a cam surface which causes initial separation of the molding elements, a linkage assembly connected between said molding elements to produce wide separation of the molding elements adjacent the outward extremity of the movement of said molding elements.
Inventors
- 👤 A Diehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:45
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/14; B29; B29C; B29C33/00; B29C33/20; B29C33/34; B29C43/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
129 words
A molding apparatus including a housing and upper and lower molding elements supported upon said housing, said molding elements to cooperate together to form a mold cavity, means connected to at least one of said molding elements to move both said molding elements in a substantially lineal direction and in respect to said housing, second means for separating said molding elements adjacent the outward extremity of the movement of said molding elements, said second means comprising: cam means connected to said housing; follower means connected to at least one of said molding elements, said follower means to normally be in contact with said cam means; and a linkage assembly connected between said molding elements, said linkage assembly includes a third means to produce substantial separating of said molding elements.
Claim 2
Dependent Claim
129 words
A molding apparatus including a housing and upper and lower molding elements supported upon said housing, said molding elements to cooperate together to form a mold cavity, means connected to at least one of said molding elements to move both said molding elements in a substantially lineal direction and in respect to said housing, second means for separating said molding elements adjacent the outward extremity of the movement of said molding elements, said second means comprising: cam means connected to said housing; follower means connected to at least one of said molding elements, said follower means to normally be in contact with said cam means; and a linkage assembly connected between said molding elements, said linkage assembly includes a third means to produce substantial separating of said molding elements.
Claim 3
Dependent Claim
79 words
Apparatus as defined in claim 1 wherein: said linkage assembly includes a main link and an intermediate link, one end of said main link connected to said upper molding element, the free end of said main link being pivotally connected to a guide block, said guide block being guidably movable within track means, said track means being secured to said housing, said intermediate link being pivotally connected to said main link and also being pivotally connected to said housing.
Claim 4
Dependent Claim
21 words
Apparatus as defined in claim 2 wherein: said follower means comprises a low frictional roller connected to said upper molding element.
Claim 5
Dependent Claim
99 words
Apparatus as defined in claim 3 wherein: an elongated rod fixedly connected to said guide block, fourth means connected to said rod, stop means mounted upon said housing, said fourth means to come into contact with said stop means adjacent the outward extremity of the lineal movement of said molding elements, whereby upon said stop means coming into contact with said fourth means further lineal movement of said molding elements results in pivoting movement of said main link with respect to said guide block, thereby resulting in substantial inclining of said upper molding element from said lowEr molding element.
Claim 6
Dependent Claim
39 words
Apparatus as defined in claim 4 wherein: said fourth means includes a member movably mounted upon said rod, said fourth means further includes a nut assembly attached to the free end of said rod, said nut assembly being adjustable.
Claim 7
Dependent Claim
76 words
Apparatus as defined in claim 3 wherein: hiatus means formed within said housing, pawl means connected to said linkage assembly, said pawl means to be capable of contacting said hiatus, upon said pawl means communicating with said hiatus, pivotal movement of said main link occurs with respect to said guide block as continued further lineal movement occurs of said molding elements, thereby resulting in substantial inclination of said upper mold element from said lower mold element.
Claim 8
Dependent Claim
15 words
Apparatus as defined in claim 6 wherein: said hiatus comprises an opening within said housing.
Claim 9
Dependent Claim
46 words
Apparatus as defined in claim 7 wherein: said opening within said housing comprises a recess, said pawl being pivotally mounted to said main link adjacent said guide block, biasing means located between said pawl and said guide block to continuously bias said pawl toward said housing.
Claim 10
Dependent Claim
13 words
Apparatus as defined in claim 8 wherein: said biasing means comprises a spring.
Claim 11
Dependent Claim
71 words
Apparatus as defined in claim 7 wherein: said pawl being fixedly mounted upon said intermediate link, said opening comprising an elongated aperture, upon said pawl coming into contact with the end wall of said aperture and upon continued lineal movement of said molding elements substantial pivoting occurs of said main link with respect to said guide block resulting in substantial spacing of said upper mold element from said lower mold element.
Claim 12
Dependent Claim
17 words
Apparatus as defined in claim 10 wherein: said pawl being in continuous engagement with said elongated aperture.
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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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |