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:
Mar. 23, 2021
Filed:
Apr. 27, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Wolter F. Benning, Seattle, WA (US);
Jeffrey Garrigues, Lake Stevens, WA (US);
Brian Johanski, Snohomish, WA (US);
Kevin Arnold Miller, Bellevue, WA (US);
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An oral care device () with a pump assembly () including: a plunger assembly () having a rack assembly (); a compressible spring () configured to exert a forward force on the plunger assembly; and a rack and pinion assembly () configured to exert a force on the plunger assembly opposite the forward force, wherein the rack assembly includes a plurality of rack teeth () and the pinion assembly () includes a plurality of teeth () arranged around a portion of the pinion; where the plurality of rack teeth include an angled front surface () and an angled rear surface (), the front surface of at least some of the plurality of rack teeth including a different angle than the rear surface, and further where at least some of the plurality of rack teeth include a pointed or rounded tip ().