Electromagnetic lifter for moving horizontal-axis coils and the like
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 30, 2014
Grant Date -
Jun 21, 2012
app pub date -
Sep 1, 2009
filing date -
Sep 1, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electromagnetic lifter comprises at least two polar expansions (4), shaped for transporting a horizontal axis coil or the like, arranged perpendicularly to the axis of the coil to be lifted, divided into two halves (4a, 4b) slidable with respect to each other under the action of an actuator mechanism (5) and shaped so as to be able to penetrate each other. The adjustability of the polar expansions (4) allows them to better adapt to the different diameters of the coils to be lifted, with the result of exploiting the greatest possible useful polar section and of reducing to a minimum the operational air gaps, whereby the lifter need not be oversized to take into account the most unfavourable case and it results smaller, lighter and cheaper.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2009 Application Filing Year
- H01F Class
- 826 Applications Filed
- 529 Patents Issued To-Date
- 64.05 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H01F Class
- 14.12 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 30, 2026 |
