US3230060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass feeding
Assignee: OI Glass Inc
•
Filing: 1961-12-04
•
Granted: 1966-01-18
•
Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Lippmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:48
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/167; C03B5/1672; C03B5/1675; C03B7/00; C03B7/08; C03B7/086; C03B7/088
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
THE METHOD OF PROTECTING A RIGID MEMBER WHICH IS MAINTAINED IMMERSED IN MOLTEN GLASS AT HIGH TEMPERATURES, COMPRISING THE STEPS OF APPLYING A SHEATH OF OXIDATION-RESISTANT MATERIAL TO FULLY ENCAPSULATE SAID MEMBER AND APPLYING A VACUUM TO THE AREA BETWEEN THE SHEATH MATERIAL AND THE MEMBER WHEREBY THE SHEATH MATERIAL IS PREVENTED FROM SAGGING AWAY FROM THE MEMBER DURING CONTACT WITH THE HIGH TEMPERATURE MOLTEN GLASS.
Claim 2
Independent Claim
66 words
THE METHOD OF PROTECTING A RIGID MEMBER WHICH IS MAINTAINED IMMERSED IN MOLTEN GLASS AT HIGH TEMPERATURES, COMPRISING THE STEPS OF APPLYING A SHEATH OF OXIDATION-RESISTANT MATERIAL TO FULLY ENCAPSULATE SAID MEMBER AND APPLYING A VACUUM TO THE AREA BETWEEN THE SHEATH MATERIAL AND THE MEMBER WHEREBY THE SHEATH MATERIAL IS PREVENTED FROM SAGGING AWAY FROM THE MEMBER DURING CONTACT WITH THE HIGH TEMPERATURE MOLTEN GLASS.
Claim 3
Dependent Claim
89 words
IN APPARATUS FOR FEEDING MOLTEN GLASS AT HIGH TEMPERATURES OF THE ORDER OF 2800*F. BY GRAVITY FLOW THROUGH AN ORIFICE WHEREIN THE ORIFICE IS OPENED AND CLOSED BY THE POSITIONING OF A PLUNGER INTO AND OUT OF SEATING ENGAGEMENT THEREWITH, THE IMPROVEMENT COMPRISING A PLUNGER HAVING A METALLIC ALLOY SHEET CLAD TO ITS ENTIRE OUTER SURFACE AND MEANS FOR PPLYING A VACUUM TO THE AREA BETWEEN THE PLUNGER BODY AND THE METALLIC ALLOY CLADDING, WHEREBY THE ALLOY CLADDING IS PREVENTED FROM SAGGING AWAY FROM THE PLUNGER CORE DURING USE.
Claim 4
Dependent Claim
89 words
IN APPARATUS FOR FEEDING MOLTEN GLASS AT HIGH TEMPERATURES OF THE ORDER OF 2800*F. BY GRAVITY FLOW THROUGH AN ORIFICE WHEREIN THE ORIFICE IS OPENED AND CLOSED BY THE POSITIONING OF A PLUNGER INTO AND OUT OF SEATING ENGAGEMENT THEREWITH, THE IMPROVEMENT COMPRISING A PLUNGER HAVING A METALLIC ALLOY SHEET CLAD TO ITS ENTIRE OUTER SURFACE AND MEANS FOR PPLYING A VACUUM TO THE AREA BETWEEN THE PLUNGER BODY AND THE METALLIC ALLOY CLADDING, WHEREBY THE ALLOY CLADDING IS PREVENTED FROM SAGGING AWAY FROM THE PLUNGER CORE DURING USE.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |