公开(公告)号：US06815918B2

公开(公告)日：2004-11-09

申请号：US10209164

申请日：2002-07-30

Applicant: Joseph Porat ,  Igor Fridman

Inventor： Joseph Porat ,  Igor Fridman

IPC: B01D3380

CPC classification number: E04H4/1654

Abstract: A method for cleaning the bottom of a pool uses an automated programmed pool cleaner capable of reversing movement and turning that is initially placed at an arbitrary location on the bottom of the pool and moved in a forward direction until it encounters an upright pool wall; the unit is reversed until it is a first predetermined distance from the wall, turned through a predetermined angle less than 180° and advanced until it again encounters an upright wall; these steps are repeated until the unit has encountered upright walls a predetermined number of times, after which the first predetermined distance is changed to one or more subsequent predetermined distances. All of the previous steps are repeated until all or substantially all of the pool has been cleaned. In a preferred embodiment, a rectangular pool is cleaned by setting the turning angle to 90° and the number of turns before changing the predetermined distance to seven. In another aspect of the invention, the unit has a rotary impeller driven in a horizontal plane, and the robot is turned by interrupting motive force to the impeller a plurality of times during a predetermined period of time to create a sufficient torque or torsional force to rotate the nearly neutrally buoyant unit through the desired turning angle.

公开(公告)号：US06303025B1

公开(公告)日：2001-10-16

申请号：US09506134

申请日：2000-02-17

Applicant: Jon E. Houchens

Inventor： Jon E. Houchens

IPC: B01D3380

CPC classification number: C02F3/04 ,  C02F2103/22 ,  C02F2103/44 ,  Y02W10/15

Abstract: A water purification system including a rectilinear housing having a plurality of vertical baffles spaced therein. The ends of each of the baffles are located a certain distance below the housing upper edge or above the housing floor to allow for the flow of washwater therethrough from a housing inlet to a housing outlet. A rectilinear array of media, e.g. corrugated plastic, is located between the baffles for harboring bacteria, and an air supply means is provided therebeneath. A feeder mechanism is also provided on an exterior wall of the housing for feeding supplemental bacteria into the housing to make up for bacteria depleted through the operation and use of the system.

Abstract translation: 一种水净化系统，包括具有间隔开的多个垂直挡板的直线壳体。 每个挡板的端部位于壳体上边缘下方或壳体底部上方一定距离处，以允许洗涤水从壳体入口到壳体出口流过。 介质的直线阵列，例如 波纹塑料位于用于容纳细菌的挡板之间，并在其下方提供空气供应装置。 馈送机构还设置在外壳的外壁上，用于将补充细菌供给到壳体中以补充通过系统的操作和使用而耗尽的细菌。