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System and method for gravity-driven automatic tire pumps

  • US 10,358,005 B2
  • Filed: 07/14/2016
  • Issued: 07/23/2019
  • Est. Priority Date: 07/14/2015
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a tire rim being distal to an axis of the tire rim; and

    a pump fixedly attached to an interior radial surface portion of the tire rim at a distal end of the tire rim which is away from a tire axis such that the pump itself rotates with the interior radial surface portion of the tire rim as the tire rim rotates, wherein rotational motion of the tire rim about the tire axis allows gravity to move a pump element in a first direction from a first position to a second position to yield a pump stroke, wherein the pump stroke pumps a gas into a volumetric container supported by pressure different from an ambient pressure outside of the volumetric container, the volumetric container mounted to the tire rim, wherein the pump comprises a plurality of masses, and wherein the pump is adjusted by fixing one or more masses of the plurality of masses in place preventing the one or more masses from moving as part of the pump stroke.

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