Alan J. Cook,Kristin William Grube,Thomas Edward Devlin,Jeff Reed Greason,Karl Thatcher Ulrich,Nathan Thatcher Ulrich,Chi Lam Yau
申请号：
US13042240
公开号：
US08166920B2
申请日:
2011.03.07
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A self-cleaning litter box (50) provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box (50) is configured to use a one piece litter cartridge (20) having a litter compartment (26) and a waste compartment 24. In another embodiment, the cartridge (20) is non-compartmentalized. In another embodiment, the system includes a rake assembly (56) configured with a drive assembly (58) that is protected from waste contamination. In accordance with the invention, the self-cleaning litter box (50) is configured to be used with all types of litter including crystal type litter.
