公开(公告)号：US20220151753A1

公开(公告)日：2022-05-19

申请号：US17098701

申请日：2020-11-16

Applicant: Colgate-Palmolive Company

Inventor： Jiang ZHOU ,  Yanmei JI ,  Tonny HE

IPC: A61C17/02

Abstract: A personal care device, such as an irrigator, which may be an oral irrigator, a nasal irrigator, or similar. The personal care device may be used to cleanse a user's oral cavity, such as by injecting a liquid such as water into the spaces between a user's teeth. The device may include two housings that are slidably coupled together, with the upper housing containing the electronic components and the lower housing containing a reservoir for holding water or other liquids that are to be dispensed. During use, the lower housing may slide upwardly as the liquid is dispensed due to the formation of a vacuum inside of the cavity of the lower housing. Thus, an air flow passageway may be formed that extends from the ambient into the cavity of the lower housing. The device may also include a cap with a locking closure to prevent accidental opening and spilling.

公开(公告)号：US20220142348A1

公开(公告)日：2022-05-12

申请号：US17582310

申请日：2022-01-24

Applicant: Colgate-Palmolive Company

Inventor： Fan Gang XIE ,  Wen Jin XI ,  Yanmei JI ,  Jiang ZHOU ,  Douglas HOHLBEIN

IPC: A46B9/04 ,  A46B9/02 ,  A46D1/00

Abstract: An oral care implement having a head with a bristle bearing surface. The oral care implement may include a central bristle tuft extending from a central portion of the bristle bearing surface, the central bristle tuft terminating in a domed distal surface. Furthermore, the oral care implement may include a plurality of perimetric bristle tufts extending from the bristle bearing surface and arranged to circumferentially surround the central bristle tuft. Each of the perimetric bristle tufts may have an inclined distal surface that slopes downward towards the central bristle tuft. The bristle bearing surface of the head may have a total surface area (TSA), and the toothbrush may include a tooth cleaning element field having X number of tooth cleaning elements that collectively occupy a total cleaning element area (TCEA) such that 1 X × T ⁢ C ⁢ E ⁢ A T ⁢ S ⁢ A = Z and Z is in a range of 0.04 to 0.065.