US3615334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float glass apparatus with adjustable surface modification means
Assignee: Pilkington Group Ltd
•
Filing: 1969-01-30
•
Granted: 1971-10-26
•
Expires: 1989-01-30
Abstract
Abstract Surface treatment of heated glass is effected by locating a body of molten material in contact with a glass surface to be treated. The molten body clings to an elongated locating member supported by a plurality of support members which are adjustable to maintain the locating member linear.
Inventors
- 👤 Jack Lawrenson
- 👤 Edward Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:36
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
Apparatus according to claim 1, wherein the locating member is held in an elongated holder which is supported by said support bolts with freedom of longitudinal movement under thermal expansion.
Claim 2
Dependent Claim
31 words
Apparatus according to claim 2, wherein the holder has longitudinally extending slots into which respective enlarged heads of said support bolts fit with freedom of movement longitudinally relative to the holder.
Claim 3
Dependent Claim
72 words
Apparatus according to claim 1, wherein said one of said support bolts is located in the center portion of said locating member and the means for adjusting the support bolts include means for vertically adjusting said one of said support bolts relative to the longitudinal ends of said locating member, and wherein said means for vertically adjusting are operable from a position located outwardly of the said ends of said locating member.
Claim 4
Dependent Claim
47 words
Apparatus according to claim 4, wherein the means for vertically adjusting each adjustable support bolt include a vertical screw device which is connected to one of the support bolts and is operable by means of a mechanical drive transmission from one end of the horizontal beam structure.
References Cited (Backward Citations)
US1447647A
Cited
US3467508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |