Apparatus for acid polishing or like treatment of glass articles
Abstract
Abstract Apparatus for acid-polishing glassware by loading the articles into a revolving cage or cages having a movement in a vertical plane. Each cage is divided into peripherally spaced pockets or compartments to receive glasses, the pockets facing in opposite directions so that articles are placed in position as the pocket is moving in a downward path, discharge which takes place on the upward path, being semiautomatic utilizing gravity. The machine is emptied by a simple semiautomatic transfer system where the glasses are automatically transferred into a duplicate apparatus for swilling (second stage) final demineralized swilling (third stage) and hot air drying (fourth stage), producing the finished article with a minimum of labor and effort and to a high standard of quality.
Inventors
- 👤 Michael Grealey
Bibliographic Details
Claims Analysis
Total Claims: 11References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |