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:
May. 01, 2012
Filed:
Mar. 07, 2011
Alan J. Cook, Chicago, IL (US);
Kristin William Grube, Bloomington, IN (US);
Thomas Edward Devlin, Sommerville, MA (US);
Jeff Reed Greason, Portsmouth, NH (US);
Karl Thatcher Ulrich, Narbeth, PA (US);
Nathan Thatcher Ulrich, Lee, NH (US);
Chi Lam Yau, Dover, NH (US);
Alan J. Cook, Chicago, IL (US);
Kristin William Grube, Bloomington, IN (US);
Thomas Edward Devlin, Sommerville, MA (US);
Jeff Reed Greason, Portsmouth, NH (US);
Karl Thatcher Ulrich, Narbeth, PA (US);
Nathan Thatcher Ulrich, Lee, NH (US);
Chi Lam Yau, Dover, NH (US);
Other;
Abstract
A self-cleaning litter box () provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box () is configured to use a one piece litter cartridge () having a litter compartment () and a waste compartment. In another embodiment, the cartridge () is non-compartmentalized. In another embodiment, the system includes a rake assembly () configured with a drive assembly () that is protected from waste contamination. In accordance with the invention, the self-cleaning litter box () is configured to be used with all types of litter including crystal type litter.