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:
Jan. 12, 2021
Filed:
Dec. 08, 2017
David R. Hall, Provo, UT (US);
Daniel Madsen, Vineyard, UT (US);
Jerome Miles, Spanish Fork, UT (US);
Christopher Jones, Spanish Fork, UT (US);
Nathan Davis, Bountiful, UT (US);
David R. Hall, Provo, UT (US);
Daniel Madsen, Vineyard, UT (US);
Jerome Miles, Spanish Fork, UT (US);
Christopher Jones, Spanish Fork, UT (US);
Nathan Davis, Bountiful, UT (US);
Hall Labs LLC, Provo, UT (US);
Abstract
Devices, systems, and methods for varying rotational speeds is disclosed. A battery pack has a plurality of batteries and a switch. The battery pack has an overall voltage. The switch varies the overall voltage in discrete steps by combining the plurality of batteries in series, in parallel, or in a combination thereof. A motor drives a shaft at a rotational speed. The motor is powered by the battery pack. The rotational speed varies proportionally with the overall voltage.