US3303445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid construction
Assignee: Individual
•
Filing: 1965-03-18
•
Granted: 1967-02-07
•
Expires: 1985-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert W Flentge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:40
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A SOLENOID COMPRISING A COIL TUBE IN THE FORM OF A CYLINDRICAL SLEEVE, A PLUG AT ONE END OF SAID COIL TUBE DEFINED BY A CYLINDRICAL PORTION SNUGLY TELESCOPICALLY PROJECTING WITHIN SAID TUBE AND A RADIAL FLANGE PORTION ABUTTING AGAINST THE END OF SAID TUBE, MEANS SECURING SAID TUBE TO SAID CYLINDRICAL PORTION, A FACE PLATE AT THE OTHER END OF SAID TUBE HAVING AN ANNULAR PORTION AND A DIAMETRICALLY REDUCED PORTION EXTENDING FROM ONE END OF SAID ANNULAR PORTION, A BORE EXTENDING THROUGH SAID FACE PLATE SO THAT IT IS SNUGLY TELESCOPICALLY RECEIVED OVER SAID TUBE, SAID ANNULAR PORTION DEFINING A RADIAL FLANGE, SAID TUBE COACTING WITH SAID RADIAL FLANGES, TO DEFINE A COIL BOBBIN, A COIL WOUND ON SAID BOBBIN, AND A PLUNGER SLIDABLY RECEIVED IN SAID TUBE AND MOVABLE TOWARD SAID PLUG UPON ENERGIZATION OF SAID COIL.
Claim 2
Dependent Claim
140 words
A SOLENOID COMPRISING A COIL TUBE IN THE FORM OF A CYLINDRICAL SLEEVE, A PLUG AT ONE END OF SAID COIL TUBE DEFINED BY A CYLINDRICAL PORTION SNUGLY TELESCOPICALLY PROJECTING WITHIN SAID TUBE AND A RADIAL FLANGE PORTION ABUTTING AGAINST THE END OF SAID TUBE, MEANS SECURING SAID TUBE TO SAID CYLINDRICAL PORTION, A FACE PLATE AT THE OTHER END OF SAID TUBE HAVING AN ANNULAR PORTION AND A DIAMETRICALLY REDUCED PORTION EXTENDING FROM ONE END OF SAID ANNULAR PORTION, A BORE EXTENDING THROUGH SAID FACE PLATE SO THAT IT IS SNUGLY TELESCOPICALLY RECEIVED OVER SAID TUBE, SAID ANNULAR PORTION DEFINING A RADIAL FLANGE, SAID TUBE COACTING WITH SAID RADIAL FLANGES, TO DEFINE A COIL BOBBIN, A COIL WOUND ON SAID BOBBIN, AND A PLUNGER SLIDABLY RECEIVED IN SAID TUBE AND MOVABLE TOWARD SAID PLUG UPON ENERGIZATION OF SAID COIL.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |