US4172877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass lined chemical reactor
Assignee: Individual
•
Filing: 1977-09-26
•
Granted: 1979-10-30
•
Expires: 1997-09-26
Abstract
Abstract Glass lined reactors for use with chemical reactions which require special conditions such as high temperatures or temperature control. These reactors include an integral baffle which improves the carrying out of such reactions without sacrificing advantages resulting from use of such equipment.
Inventors
- 👤 Robert H. Schwaig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:44
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0053; B01J19/0066; B01J19/02; B01J2219/00; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/00768; B01J2219/02; B01J2219/0204; B01J2219/0209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A chemical reactor for controlled reaction condition procedures comprising a chamber having a metal side wall, a vertically extending strip of sheet metal projecting into the chamber and affixed only at its periphery to the side wall, the remaining portion of the strip being separated therefrom forming a space between the strip and the side wall, the space being provided with means defining a vent through the side wall, a continuous glass lining integral with the metal wall and strip, and means for agitation projecting into the chamber.
Claim 2
Dependent Claim
88 words
A chemical reactor for controlled reaction condition procedures comprising a chamber having a metal side wall, a vertically extending strip of sheet metal projecting into the chamber and affixed only at its periphery to the side wall, the remaining portion of the strip being separated therefrom forming a space between the strip and the side wall, the space being provided with means defining a vent through the side wall, a continuous glass lining integral with the metal wall and strip, and means for agitation projecting into the chamber.
References Cited (Backward Citations)
US18220A
Cited
US112849A
Cited
US160857A
Cited
US2085924A
Cited
US1837416A
Cited
US2183509A
Cited
US2364130A
Cited
US2420757A
Cited
US3062685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |