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1. 发明授权

US5341763A Removable screen for animal litter box 失效
标题翻译：动物垃圾箱可移动屏幕
公开(公告)号：US5341763A
公开(公告)日：1994-08-30
申请号：US122765
申请日：1993-09-16
申请人： John P. Bondurant, III
发明人： John P. Bondurant, III
IPC分类号： A01K1/01 , A01K29/00
CPC分类号： A01K1/0107 , A01K1/0114
摘要： A litter screen for use with an animal litter box, for removing solid waste products from the litter box. The litter screen has a hollow body of circular cross-section, open at an upper end and having a perforate screen element at a lower end. A plane spiral coil forms the screen element in the preferred embodiment. The litter screen is lifted from the litter box for removing solid waste products, and then is returned to the litter box by pressing the bottom of the litter screen against litter in the box while thrusting the litter screen downwardly and simultaneously oscillating the litter screen so that the lower end moves downwardly through the litter.
摘要翻译：用于动物垃圾箱的垃圾屏幕，用于从垃圾箱中清除固体废物。垃圾屏幕具有圆形横截面的空心体，在上端开口并且在下端具有穿孔筛网元件。在优选实施例中，平面螺旋线圈形成屏幕元件。垃圾屏幕从垃圾箱中取出，用于清除固体废物，然后通过将垃圾屏幕的底部按压在垃圾箱的下方，将垃圾屏幕向下推并返回到垃圾箱，同时将垃圾屏幕向下摆动，从而使下端向下移动通过垃圾。

2. 发明授权

US5454349A Removable screen for animal litter box 失效
标题翻译：动物垃圾箱可移动屏幕
公开(公告)号：US5454349A
公开(公告)日：1995-10-03
申请号：US298072
申请日：1994-08-30
申请人： John P. Bondurant, III
发明人： John P. Bondurant, III
IPC分类号： A01K1/01 , A01K29/00
CPC分类号： A01K1/0107 , A01K1/0114
摘要： A litter screen for use with an animal litter box, for removing solid waste products from the litter box. The litter screen has a hollow body of circular cross-section, open at an upper end and having a perforate screen element at a lower end. A number of curvilinear bars or straight bars form the screen element in the preferred embodiments. The litter screen is lifted from the litter box for removing solid waste products, and then is returned to the litter box by pressing the bottom of the litter screen against litter in the box while pressing the litter screen downwardly and simultaneously oscillating the litter screen so that the lower end moves downwardly through the litter. A skirt surrounds the litter screen in the box to control dust from the litter while the litter screen is being removed from or returned to the litter box.
摘要翻译：用于动物垃圾箱的垃圾屏幕，用于从垃圾箱中清除固体废物。垃圾屏幕具有圆形横截面的空心体，在上端开口并且在下端具有穿孔筛网元件。在优选实施例中，多个曲线条或直条形成屏幕元件。垃圾箱从垃圾箱中取出，以清除固体废物，然后将垃圾屏幕的底部按压在垃圾箱内，将垃圾屏幕向下按压，同时将垃圾屏幕向下冲洗，同时使垃圾屏幕振荡下端向下移动通过垃圾。一个裙子围绕着盒子里的垃圾屏幕，以防止垃圾屏幕从垃圾箱中移除或者返回垃圾箱。

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