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:
Feb. 15, 2022
Filed:
Jan. 09, 2020
Ossur Iceland Ehf, Reykjavik, IS;
Atli Orn Sverrisson, Reykjavik, IS;
Larus Gunnsteinsson, Reykjavik, IS;
Gudfinna Halldorsdottir, Reykjavik, IS;
Hafsteinn Jonasson, Reykjavik, IS;
Dadi Granz, Reykjavik, IS;
Dana Stewart Marlin, Reykjavik, IS;
OSSUR ICELAND EHF, Reykjavik, IS;
Abstract
A vacuum suspension system includes a foot cover having a heel portion and a pump system located in the heel portion. The pump system includes upper and lower sections arranged to move in an axial direction relative to one another and a pump mechanism operatively connected to and positioned between the upper and lower sections. When the heel portion is loaded in stance the pump mechanism moves from an original configuration in which the volume of a fluid chamber defined by the pump mechanism is zero or near-zero, to an expanded configuration in which the volume of the fluid chamber is increased.