US3616341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical and electropolishing
Assignee: JOHN F JUMER
•
Filing: 1969-05-19
•
Granted: 1971-10-26
•
Expires: 1989-05-19
Abstract
Abstract Large objects and the interiors of large vessels having areas to be polished which cannot be readily completely subjected to polishing action at one time, may be polished by the improved method on a partial area basis without creating or leaving any noticeable line of demarcation that would indicate that all areas had not been simultaneously subjected to the polishing action.
Inventors
- 👤 John F Jumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:25
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/16; C23; C23F; C23F3/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
28 words
In the method of claim 1 obtaining said progressive shifting of said surface level and said horizontal center line of said object by lifting or lowering said object.
Claim 2
Dependent Claim
29 words
In the method of claim 1 obtaining said progressive shifting of said surface level and said horizontal center line of said object by lowering or raising said surface level.
Claim 3
Dependent Claim
17 words
In the method of claim 1 obtaining said polishing action by means of a chemical polishing bath.
Claim 4
Dependent Claim
12 words
In the method of claim 1 obtaining said polishing action by electropolishing.
Claim 5
Dependent Claim
114 words
In the method of polishing the interior of a vessel having closed ends and a sidewall concentric about an axis of revolution with at least one of said closed ends having an access port the steps which comprise, first uniformly polishing the interiors of said ends, disposing said vessel for rotation about its said axis of revolution, introducing a bath of liquid for providing polishing action into said vessel to a sufficient depth to extend part way up said closed ends, rotating said vessel about said axis, initiating said polishing action, and changing the depth of said bath uniformly at a predetermined rate at least for as long as said polishing action is continued.
Claim 6
Dependent Claim
26 words
In the method of claim 6 disposing said vessel for rotation so that the bottom of said sidewall at any time during rotation is approximately level.
Claim 7
Dependent Claim
16 words
In the method of claim 6 changing the depth of said bath by increasing the same.
Claim 8
Dependent Claim
16 words
In the method of claim 6 changing the depth of said bath by decreasing the same.
Claim 9
Dependent Claim
17 words
In the method of claim 6 obtaining said polishing action by means of a chemical polishing bath.
Claim 10
Dependent Claim
12 words
In the method of claim 6 obtaining said polishing action by electropolishing.
References Cited (Backward Citations)
No citation records indexed.
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 |