Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided. The toothbrush heads include a support member and a plurality of bristles or tufts of bristles extending from the support member, the bristles or bristle tufts having different lengths. The contour of the bristles may be selected to allow substantially all of the bristles to contact the dentition during brushing.
Type:
Grant
Filed:
December 17, 2013
Date of Patent:
December 8, 2015
Assignee:
THE GILLETTTE COMPANY
Inventors:
Alexander Timothy Chenvainu, Thomas Aurele Christman
Abstract: The disclosure relates to prismatic lithium ion secondary cells. Some cells include venting features and/or multiple connecting tabs. In some cells the cathode includes LiFePO4.