US3734671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold closing unit
Assignee: JM Voith GmbH
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Filing: 1971-09-20
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Granted: 1973-05-22
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Expires: 1991-09-20
Abstract
Abstract A mold closing unit has a substantially U-shaped frame with a pair of guide rails positioned on both sides of the cross member of the frame and having their ends pivotally mounted to the frame below the arms thereof. A pair of mold supports are slideably mounted on said guide rails for movement toward and from each other between the arms of the frame. Closing and blowing forces are absorbed by the frame and deformations in the frame resulting from these forces do not misalign the mold halves which are mounted on the guide rails.
Inventors
- 👤 J Talasz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:16
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/1761; B29C49/00; B29C49/42; B29C49/56; B29C49/5601; B29C2045/1763; B29C2045/1768; B29C49/28; B29C49/28006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
120 words
In a mold closing unit particularly adapted for forming containers of synthetic resin by a blow molding operation, the combination of a substantially U-shaped frame having two arms connected at their ends by a cross member, a pair of mold support means for cooperating mold halves mounted for movement to and from each other between said frame arms, means on said frame for supporting said mold support means and for guiding said mold support means in parallel with respect to each other, said guiding means comprising guide rail means parallel to the direction of movement of said mold support means, and means on said frame cross beam for pivotally mounting the ends of said guide rail below said frame arms.
Claim 2
Dependent Claim
120 words
In a mold closing unit particularly adapted for forming containers of synthetic resin by a blow molding operation, the combination of a substantially U-shaped frame having two arms connected at their ends by a cross member, a pair of mold support means for cooperating mold halves mounted for movement to and from each other between said frame arms, means on said frame for supporting said mold support means and for guiding said mold support means in parallel with respect to each other, said guiding means comprising guide rail means parallel to the direction of movement of said mold support means, and means on said frame cross beam for pivotally mounting the ends of said guide rail below said frame arms.
Claim 3
Dependent Claim
30 words
In a mold closing unit as claimed in claim 1 wherein said guide rail means comprises a pair of rails disposed symmetrically on both sides of said frame cross beam.
Claim 4
Dependent Claim
28 words
In a mold closing unit as claimed in claim 1 wherein said pivotal mounting means is mounted on a line along the neutral axis of said cross beam.
Claim 5
Dependent Claim
33 words
In a mold closing unit as claimed in claim 1 and comprising a pair of racks slideably mounted on said guide rail means with said mold supporting means being mounted on said racks.
Claim 6
Dependent Claim
29 words
In a mold closing unit as claimed in claim 4 wherein each of said racks has roller means thereon riding on the upper edge of said guide rail means.
References Cited (Backward Citations)
GB1209990A
Cited
US3674400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |