公开(公告)号：US3622001A

公开(公告)日：1971-11-23

申请号：US3622001D

申请日：1969-09-12

Applicant: DOMAIN IND INC

Inventor： ODEN WILLIAM A

IPC: B01D29/00 ,  B01D35/143 ,  B01D27/10 ,  B01D29/34

CPC classification number: B01D35/143 ,  B01D29/41 ,  B01D29/606 ,  B01D2201/309

Abstract: This device provides a visual media for instantly determining the then-filtering capacity of the filter elements or media in a water filtration apparatus. The system includes a bypass channel or chamber disposed in an upstanding position and having freely and slidably mounted therein a movable indicator element having a specific gravity somewhat above that of water. This bypass channel or chamber is connected at its lower end with the liquid or water in a filter tank, which is subjected to pressure imposed by a recirculating pump, and the upper end of said bypass is in communication with the liquid pressure passing through from the collection manifold of the filter apparatus to the return line to the pool or other main repository for the water. When the filter media is in a clean or new condition, the pressure from the upper connection of the bypass will be slightly less than from the tank or bottom connection, and as the filter media becomes impregnated or contaminated or clogged, the collection manifold pressure due to the decline of water flow decreases further while simultaneously the pressure at the lower end of the bypass from the filter tank increases. This differential pressure is responsible for an upwardly escape velocity in the bypass chamber, causing the indicator element proper to rise in a direct relationship to the degree of contamination or clogging.

公开(公告)号：US3608725A

公开(公告)日：1971-09-28

申请号：US3608725D

申请日：1969-10-13

Applicant: DOMAIN IND INC

Inventor： ODEN WILLIAM A

IPC: B01D29/00 ,  E04H3/16

CPC classification number: B01D29/668 ,  B01D29/41

Abstract: A system and apparatus for combination with conventional water filter systems for pools and the like which continually relieves accumulation of air in the filter tank and redistributes such air to the pool or other reservoir. The system employs an upwardly extending air withdrawal passage filtered at its upper end for entrance of air at the top of the filter tank, and having communication at its lower end with the effluent discharge or water stream emanating from the manifold or other main discharge of cleansed water from the filter tank. The apparatus also preferably includes a water diverting means for deflecting water through the air withdrawal passage in backwash operation of the general filtering system to thus clean the filter of the air withdrawal passage.

公开(公告)号：US3594102A

公开(公告)日：1971-07-20

申请号：US3594102D

申请日：1969-08-11

Applicant: DOMAIN IND INC

Inventor： ODEN WILLIAM A

IPC: F04D29/12 ,  F04D29/22 ,  F04B35/04 ,  F16J15/54

CPC classification number: F04D29/2227 ,  F04D29/126 ,  F05B2240/70 ,  F05D2300/43 ,  F05D2300/50 ,  Y10S277/919

Abstract: An impeller for rotary water pumps and the like which through the provision of novel components and combinative relations with the driving shaft of an electric motor, inherently accomplishes two important new results, to wit: 1. The housing of the pump and all water passing therethrough are dielectrically insulated from the metal driving element of the motor. 2. The motor shaft, from its terminal point to an area outside of the pump housing, is entirely enclosed within a protruding sleeve carried by the impeller, thus preventing accumulation of rust or other corrosion as well as eliminating electrolytic buildup on the motor shaft.