US3907475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for blow molding containers
Assignee: Graham Packaging Plastic Products Inc
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Filing: 1973-08-20
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Granted: 1975-09-23
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Expires: 1993-08-20
Abstract
Abstract A method and apparatus for blow molding hollow plastic containers which include a split mold having two mold halves. A blow pin support assembly is attached to one of the mold halves and extends therebelow. The blow pin assembly is mounted on the support means and is adjustable thereon to provide centering of the blow pin with the neck opening provided in one end of the blow mold. The support structure includes means for vertically and horizontally positioning the blow pin assembly to provide exact centering of the blow pin assembly with the neck opening in the mold.
Inventors
- 👤 Kenneth E Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:43
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/58; B29C49/02; B29C49/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
A blow pin assembly for use in a blow molding apparatus, said assembly comprising: a. a body member having an axial bore extending at least part way through said body and an axial counterbore at one end of said body; b. a separate blow tip having an axial bore therethrough communicating with said bore in said body member; c. a separate generally cylindrical cutter ring slidably receivable over said blow tip and seated on its base and on an annular shoulder provided on said base of said blow tip; and d. a collar member having one end removably connected to said body member and its other end coupled to said cutter ring whereby said blow tip is fixedly seated to said body.
Claim 2
Dependent Claim
122 words
A blow pin assembly for use in a blow molding apparatus, said assembly comprising: a. a body member having an axial bore extending at least part way through said body and an axial counterbore at one end of said body; b. a separate blow tip having an axial bore therethrough communicating with said bore in said body member; c. a separate generally cylindrical cutter ring slidably receivable over said blow tip and seated on its base and on an annular shoulder provided on said base of said blow tip; and d. a collar member having one end removably connected to said body member and its other end coupled to said cutter ring whereby said blow tip is fixedly seated to said body.
Claim 3
Dependent Claim
25 words
The blow pin assembly of claim 1 wherein means are provided in said body member and said blow tip for circulating a cooling fluid therethrough.
Claim 4
Dependent Claim
31 words
The blow pin assembly of claim 1 wherein said body member is provided with a radial bore communicating with said axial bore for supplying blow air to the blow mold apparatus.
Claim 5
Dependent Claim
34 words
The blow pin assembly of claim 1 wherein said cutter ring is provided with an annular, outwardly projecting shoulder at its base end which is in abutment with said other end of said collar.
Claim 6
Dependent Claim
26 words
The blow pin assembly of claim 4 wherein both said cylindrical ring and said blow tip are provided with adjacent annular grooves in their outer walls.
Claim 7
Dependent Claim
48 words
The blow pin assembly of claim 4 wherein the outer wall of said cylindrical ring is provided with an annular groove adjacent its outer end and the outer wall of said blow tip is provided with a raised annular ring adjacent said annular groove in said cylindrical ring.
Claim 8
Dependent Claim
88 words
The blow pin assembly of claim 1 wherein a portion of said axial bore of said blow tip has an enlarged diameter and said means for circulating a cooling fluid includes a coolant distribution tube aSsembly received in enlarged diameter, adjacent portions of said bores in said body member and said blow tip, a coolant entrance bore and a coolant exit bore in said body member, each of said bores communicating with said enlarged diameter, adjacent portions of said bores in said body member and said blow tip.
Claim 9
Dependent Claim
20 words
The blow pin assembly of claim 1 including an axial recess provided in said body member opposite said axial counterbore.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |