Patent US4909978A successfully refreshed from Google Patents.
US4909978A
Expired / Lapsed
US
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Apparatus for forming a blown bottle with a handle and method of forming the same
Assignee: Mitsubishi Chemical Corp
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Filing: 1988-05-12
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Granted: 1990-03-20
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Expires: 2008-05-12
Abstract
Abstract A method of forming a blown bottle with a handle as a one-piece-molded product, wherein a thermoplastic parison and a handle are held in correct positional relationship by respective holders and are simultaneously moved in a blow mold to be subjected to blow molding. The parison is blow molded by injecting a pressurized fluid into it. Blow molding results in connection of the parison with the handle.
Inventors
- 👤 Hideo Hasegawa
- 👤 Toshio Takahashi
- 👤 Masayuki Miyagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:48
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/20; B29C2049/2017; B29C2049/2021; B29C2049/2034; B29C2049/2039; B29C2049/2073; B29C2049/2082; B29C2949/00; B29C2949/07; B29C2949/0715; B29C49/02; B29C49/06; B29L; B29L2031/00; B29L2031/46; B29L2031/463
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
A method of forming a blown bottle having an integrally attached handle, said method comprising: heating a thermoplastic parison to a temperature suitable for molding; holding said parisons and said handle in a predetermined positional relationship by holding means; simultaneously moving said parison and said handle via said holding means into a blow mold while maintaining said predetermined positional relationship; and blowing a pressurized fluid into said parison, said parison expanding into contact with said handle thereby forming a blown bottle having a handle integrally attached thereto.
Claim 2
Independent Claim
87 words
A method of forming a blown bottle having an integrally attached handle, said method comprising: heating a thermoplastic parison to a temperature suitable for molding; holding said parisons and said handle in a predetermined positional relationship by holding means; simultaneously moving said parison and said handle via said holding means into a blow mold while maintaining said predetermined positional relationship; and blowing a pressurized fluid into said parison, said parison expanding into contact with said handle thereby forming a blown bottle having a handle integrally attached thereto.
Claim 3
Dependent Claim
33 words
The method according to claim 1, further comprising setting said parison and said handle on respective holders, and moving the holders circularly to a parison heating station and then to a blowing station.
Claim 4
Dependent Claim
39 words
The method according to claim 1 further comprising setting said parison on a first holder prior to heating said parison, and setting said handle on a second holder so as to maintain said predetermined positional relationship to said parison.
Claim 5
Dependent Claim
69 words
The method according to claim 1 further comprising simultaneously forming said parison and said handle by injection in an injection mold and moving said parison and said handle circularly via said holding means to a heating station and then to a blowing station, said holding means comprising a holder plate which forms part of an injection cavity of said injection mold in which said parison and handle are formed.
Claim 6
Dependent Claim
23 words
The method according to claim 1 further comprising setting said parison on a rotatable holder and setting said handle on a non-rotatable holder.
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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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |