US3773490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvements in the production of one-piece stemware from glass or the like
Assignee: Glass Tubes and Components Ltd
•
Filing: 1972-07-26
•
Granted: 1973-11-20
•
Expires: 1992-07-26
Abstract
Abstract Glass or like stemware is manufactured in one piece by partforming an article having a glob of material in the position where the stem is required, placing the glob between rollers which have a shape defining the required shape of the stem, and rotating the glob between the rollers while advancing the rollers inwardly. Subsequently a foot forming member is axially advanced towards the glob to apply pressure against the glob to form a radially-extending foot.
Inventors
- 👤 D Inns
- 👤 W Bennett
- 👤 A Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:35
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/004; C03B23/0046; C03B9/00; C03B9/13; C03B9/14; C03B9/145; C03B9/30; C03B9/32; C03B9/33; Y; Y10; Y10S; Y10S65/00; Y10S65/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
Apparatus for manufacturing a stemmed article from a viscous material, comprising: jaw means for rotatably supporting a part-formed article of viscous material for rotation about a longitudinal axis of the article; at least two parallel spaced rollers around the jaw means rotatable about respective axis parallel to the axis of rotation of the jaw means; and means coupled to the rollers for advancing the rollers towards each other to form a stem on the article.
Claim 2
Dependent Claim
75 words
Apparatus for manufacturing a stemmed article from a viscous material, comprising: jaw means for rotatably supporting a part-formed article of viscous material for rotation about a longitudinal axis of the article; at least two parallel spaced rollers around the jaw means rotatable about respective axis parallel to the axis of rotation of the jaw means; and means coupled to the rollers for advancing the rollers towards each other to form a stem on the article.
Claim 3
Dependent Claim
24 words
Apparatus according to claim 1, wherein the advancing means is adapted to advance one roller ahead of the other into an initial contacting position.
Claim 4
Dependent Claim
33 words
Apparatus according to claim 1, including heating means for heating an article positioned between the rollers and coupled to the rollers for automatic retraction of the heating means on advancement of the rollers.
Claim 5
Dependent Claim
32 words
Apparatus according to claim 1, including a foot forming member mounted for axial advancement towards an article positioned between the rollers and shaped for forming a radially extending foot on the article.
Claim 6
Dependent Claim
13 words
Apparatus according to claim 4, wherein said foot forming member is freely rotatable.
Claim 7
Dependent Claim
19 words
Apparatus according to claim 4, wherein the bases of said rollers are conical to assist formation of said foot.
Claim 8
Dependent Claim
31 words
Apparatus according to claim 1, wherein the apparatus is provided in association with a blow/moulding machine whereby a blow tube of the blow/moulding machine can support an article between the rollers.
Claim 9
Dependent Claim
31 words
Apparatus according to claim 1, wherein said jaw means is adapted to transmit drive to said article, and said rollers are freely rotatable and adapted to be driven by said article.
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |