Gabriel, George S.,Campbell, Neil E.,Park, Chinsoo,Miller, Curtis,Irwin, Lynn,Gerringer, Rodney,Murray, Dale
申请号：
AU2009283147
公开号：
AU2009283147B2
申请日:
2009.08.21
申请国别(地区):
AU
年份:
2014
代理人:
摘要：
A filter top assembly (20) for a cage, wherein the assembly (20) includes a bonnet (100) having a perforated top wall to protect filter paper (200) placed above the top wall. The perforations (120) may be small enough to prevent an animal from getting a purchase position and spaced apart sufficiently to prevent the animal from biting the spacing between the perforations (120). The bonnet (100) may also include one or more elevated ribs (142,144) to retain the filter paper (200) suspended above the bonnet.
