US 11,810,705 B2
Adjustable inductor and method of using the same
Kenneth Edward Pagenkopf, Shorewood, WI (US)
Assigned to Hubbell Incorporated, Shelton, CT (US)
Filed by Hubbell Incorporated, Shelton, CT (US)
Filed on Sep. 26, 2022, as Appl. No. 17/952,870.
Application 17/952,870 is a continuation of application No. 16/903,703, filed on Jun. 17, 2020, granted, now 11,456,101.
Claims priority of provisional application 62/862,985, filed on Jun. 18, 2019.
Prior Publication US 2023/0079125 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01F 21/04 (2006.01); H01F 27/28 (2006.01); H03H 7/01 (2006.01); H01F 27/24 (2006.01)
CPC H01F 21/04 (2013.01) [H01F 27/24 (2013.01); H01F 27/28 (2013.01); H03H 7/0115 (2013.01); H03H 2210/026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tunable trap filter inductor comprising:
an adjustable inductor including:
a toroidal core defining a plurality of gaps;
a material positioned in the gaps;
at least one winding wound on the core;
a force-applying structure operable to apply a force to the core to adjust the gaps and thereby an inductance of the adjustable inductor; and
wherein the adjustable inductor further includes a film substantially covering the adjustable inductor.