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:
Jul. 27, 2010
Filed:
Sep. 30, 2004
Alan Jay Cook, Skokie, IL (US);
Kristin William Grube, Bloomington, IN (US);
Thomas Edward Devlin, Somerville, 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 Jay Cook, Skokie, IL (US);
Kristin William Grube, Bloomington, IN (US);
Thomas Edward Devlin, Somerville, 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);
Lucky Litter LLC, Chicago, IL (US);
Abstract
A self-cleaning litter box is disclosed which provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box is configured to use a cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the self-cleaning litter box is configured to be used with all types of litter including crystal type litter.