US3697210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device for multiple injection blow molding machine
Assignee: Jomar Industries Inc
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Filing: 1970-08-24
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Granted: 1972-10-10
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Expires: 1990-08-24
Abstract
Abstract A closure device for blow molding apparatus having a rotatable turret with parison pins projecting from the face thereof and separable mold halves encompassing the pins to define mold cavities thereabout. A lever interconnects the movable segment of the mold half and a relatively fixed pivot point. The turret is connected to the lever intermediate the pivot point and the mold half to move a fraction of the distance of the mold half such that the pins and molded objects thereon clear the mold halves upon opening thereof for rotation of the turret.
Inventors
- 👤 Joseph A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:03
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/06; B29C49/061; B29C49/062; B29C49/063; B29C2049/023
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
In a blow molding apparatus having an indexable turret with parison pins projecting outwardly from the face thereof and separable movable and fixed mold halves closing about said pins to define mold cavities thereabout the improvement comprising a turret-mold synchronizing device including actuating means to move said movable mold half with respect to said fixed mold half, and lever means interconnecting said movable mold half and said turret to simultaneously move said turret with said movable mold half such that said pins and articles formed thereon are disposed in cavities defined by said mold halves when together and clear of said mold halves for indexing of said turret when said mold halves are apart, said lever means extending between a normally fixed pivot point and said actuating means to move about said actuating means and said turret being connected to said lever means intermediate said pivot and said actuating means such that said turret moves a fraction of the distance of said actuating means upon operation thereof.
Claim 2
Dependent Claim
167 words
In a blow molding apparatus having an indexable turret with parison pins projecting outwardly from the face thereof and separable movable and fixed mold halves closing about said pins to define mold cavities thereabout the improvement comprising a turret-mold synchronizing device including actuating means to move said movable mold half with respect to said fixed mold half, and lever means interconnecting said movable mold half and said turret to simultaneously move said turret with said movable mold half such that said pins and articles formed thereon are disposed in cavities defined by said mold halves when together and clear of said mold halves for indexing of said turret when said mold halves are apart, said lever means extending between a normally fixed pivot point and said actuating means to move about said actuating means and said turret being connected to said lever means intermediate said pivot and said actuating means such that said turret moves a fraction of the distance of said actuating means upon operation thereof.
Claim 3
Dependent Claim
38 words
A device in accordance with claim 1 wherein said turret is connected to said lever means substantially midway between said pivot and said actuating means such that said turret moves approximately one-half the distance of said actuating means.
Claim 4
Dependent Claim
50 words
A device in accordance with claim 2 wherein a second actuating means supports said normally fixed pivot point, said second actuating means being actuable a distance equal and opposite to said first mentioned actuating means to thereby provide for raising of said movable mold half without movement of said turret.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |