US3124169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
R schade sr
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:03
CPC Classifications
H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
APPARATUS FOR WINDING VARIABLE PITCH HELICAL WIRE GRIDS FOR ELECTRON TUBES COMPRISING SUPPORTING MANDREL MEANS, MEANS FOR WINDING A HELICAL GRID WIRE AROUND SAID MANDREL AT A CONSTANT RATE, MEANS FOR LONGITUDINALLY ADVANCING SAID MANDREL AT A PLURALITY OF DIFFERENT SPEEDS TO WIND PLURAL PITCH HELICAL GRIDS, SAID LAST-NAMED MEANS COMPRISING A LEAD SCREW COUPLED TO SAID MANDREL FOR LONGITUDINALLY ADVANCING SAID MANDREL, A PLURALITY OF DRIVE MOTORS ADAPTED FOR ENGAGEMENT WITH SAID LEAD SCREW, EACH OF SAID MOTORS ADAPTED TO ROTATE SAID LEAD SCREW AT A DIFFERENT ANGULAR VELOCITY, A PLURALITY OF ELECTRICALLY OPERABLE CLUTCHES FOR SELECTIVELY AND INDEPENDENTLY COUPLING A DIFFERENT ONE OF SAID PLURALITY OF DRIVE MOTORS TO SAID LEAD SCREW, SWITCH MEANS FOR ACTUATING SAID PLURALITY OF
Claim 2
Dependent Claim
121 words
APPARATUS FOR WINDING VARIABLE PITCH HELICAL WIRE GRIDS FOR ELECTRON TUBES COMPRISING SUPPORTING MANDREL MEANS, MEANS FOR WINDING A HELICAL GRID WIRE AROUND SAID MANDREL AT A CONSTANT RATE, MEANS FOR LONGITUDINALLY ADVANCING SAID MANDREL AT A PLURALITY OF DIFFERENT SPEEDS TO WIND PLURAL PITCH HELICAL GRIDS, SAID LAST-NAMED MEANS COMPRISING A LEAD SCREW COUPLED TO SAID MANDREL FOR LONGITUDINALLY ADVANCING SAID MANDREL, A PLURALITY OF DRIVE MOTORS ADAPTED FOR ENGAGEMENT WITH SAID LEAD SCREW, EACH OF SAID MOTORS ADAPTED TO ROTATE SAID LEAD SCREW AT A DIFFERENT ANGULAR VELOCITY, A PLURALITY OF ELECTRICALLY OPERABLE CLUTCHES FOR SELECTIVELY AND INDEPENDENTLY COUPLING A DIFFERENT ONE OF SAID PLURALITY OF DRIVE MOTORS TO SAID LEAD SCREW, SWITCH MEANS FOR ACTUATING SAID PLURALITY OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |