The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2021
Filed:
Dec. 17, 2019
Goodrich Corporation, Charlotte, NC (US);
Wallace Harold Larson, Jamestown, ND (US);
Scott Harms, Ypsilanti, ND (US);
GOODRICH CORPORATION, Charlotte, NC (US);
Abstract
A PDU for use in an aircraft includes a wheel configured to convey cargo through a portion of the aircraft. The PDU further includes an armature rotatably coupled to the wheel. The PDU further includes a brake pad. The PDU further includes a hold solenoid configured to compress the armature against the brake pad by a brake amount in order to apply a hold braking force to the wheel by resisting rotation of the armature. The PDU further includes a release solenoid configured to apply a force to separate the armature from the brake pad in order to allow the armature to rotate. The PDU further includes a magnet configured to compress the armature against the brake pad by a drag amount that is less than the brake amount in order to apply a drag braking force to the wheel by resisting rotation of the armature.