公开(公告)号：US4124789A

公开(公告)日：1978-11-07

申请号：US786871

申请日：1977-04-12

申请人： Graham M. Preece

发明人： Graham M. Preece

IPC分类号： H01H3/24 ,  H01H27/00 ,  H01H35/30

CPC分类号： H01H27/00 ,  H01H3/24

摘要： A motor control circuit for the comminuter motor of a waste disposal unit, incorporating an air sack around the inlet to the waste disposal unit, and a pressure responsive electrical switch, the motor being de-energized in absence of a pressure signal from the sack caused by the insertion of a safety guard in the inlet.

摘要翻译： 一种用于废物处理单元的通风机电动机的电动机控制电路，在废物处理单元的入口周围并入有空气袋，以及压力响应电开关，该电动机在没有来自袋的压力信号的情况下被断电 通过在入口插入安全防护装置。

公开(公告)号：US4422580A

公开(公告)日：1983-12-27

申请号：US272023

申请日：1981-06-09

申请人： Nigel R. C. Shepherd ,  Graham M. Preece

发明人： Nigel R. C. Shepherd ,  Graham M. Preece

IPC分类号： B01F5/00 ,  B01F5/16 ,  B01F7/00 ,  B02C18/14 ,  F04D29/22 ,  B02C23/36

CPC分类号： B02C18/0092 ,  B01F5/16 ,  B01F7/0075 ,  F04D29/2288 ,  B01F2005/0002

摘要： A macerator is disclosed which has an impeller which on its upstream side is provided with radial fins adjacent fixed teeth and through which a number of slots pass. On its downstream side an outwardly flared member is provided with radial vanes. Effluent entering the macerator is thrown by the fins onto the teeth and can than pass through the slots to be thrown outwardly by the member and then to the macerator outlet. The provision of the member provides a significant pumping effect.

摘要翻译： 公开了一种剥离器，其具有叶轮，该叶轮在其上游侧设有与固定齿相邻的径向翅片，并且多个狭槽通过该叶片。 在其下游侧，向外张开的构件设置有径向叶片。 进入渗滤器的流出物被翅片抛出到齿上，并且不能穿过槽，以被构件向外抛出，然后到达剥离器出口。 提供成员提供了显着的泵送效果。