US3917095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oriented article having bead attached by tapered stem
Assignee: Phillips Petroleum Co
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Filing: 1974-02-19
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Granted: 1975-11-04
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Expires: 1994-02-19
Abstract
Abstract The strength of the seal of an open end parison preform fabricated at orientation temperature is increased by forming a dependent bead within a closely adjacent longitudinal recess. In an alternate embodiment the appearance of seals is improved, and pin holes reduced by forming a dependent bead in a manner such that the longitudinal stem (web) connecting the bead flares outward adjacent a bottom wall of the article being molded.
Inventors
- 👤 Charles L Seefluth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:33
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/0261; B65D1/0276; B29; B29C; B29C49/00; B29C49/08; B29C49/10; B29C49/14; B29C49/42; B29C49/48; B29C49/4802; B29C49/4817; B29C66/00; B29C66/01; B29C66/32; B29C66/326; B29C65/00; B29C65/02; B29C65/10; B29C65/14; B29C66/70; B29C66/71
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A bottle made of a thermoplastic material having a longitudinal bead connected to a bottom wall of said bottle by means of a longitudinal stem which flares outward in a direction toward said bottom wall, a distance between said bead and said bottom wall being greater in the center than near the ends of said longitudinal bead.
Claim 2
Dependent Claim
57 words
A bottle made of a thermoplastic material having a longitudinal bead connected to a bottom wall of said bottle by means of a longitudinal stem which flares outward in a direction toward said bottom wall, a distance between said bead and said bottom wall being greater in the center than near the ends of said longitudinal bead.
Claim 3
Dependent Claim
30 words
An article according to claim 1 wherein opposed surfaces of said stem slope back at an angle of 1*-25* from a line through said bead perpendicular to said bottom wall.
Claim 4
Dependent Claim
18 words
An article according to claim 1 wherein said bead and flared stem are within a narrow longitudinal recess.
Claim 5
Dependent Claim
11 words
An article according to claim 1 wherein said thermoplastic is polypropylene.
Claim 6
Dependent Claim
13 words
An article according to claim 1 wherein said thermoplastic material is biaxially oriented.
Claim 7
Dependent Claim
14 words
An article according to claim 1 wherein said thermoplastic material is biaxially oriented polypropylene.
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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |