公开(公告)号：US3581895A

公开(公告)日：1971-06-01

申请号：US3581895D

申请日：1969-02-28

Applicant: HERBERT H HOWARD ,  HENRY R YOUNG ,  JACK A BERG ,  BERNARD BELLINSON ,  MARINE SWIMMING POOL EQUIPMENT

Inventor： HOWARD HERBERT H ,  YOUNG HENRY R ,  BERG JACK A ,  BELLINSON BERNARD

IPC: B01D24/14 ,  B01D29/27 ,  B01D29/38

CPC classification number: B01D24/14 ,  B01D24/44 ,  B01D24/4642 ,  B01D24/4884 ,  B01D29/27

Abstract: A pressure-responsive switch senses the rising back pressure in a sand filter caused by debris collected in the filter, and at a predetermined pressure indicating the need for cleaning the filter, it triggers the reversal of valve means which reverses the flow in the filter and backwashes the debris into a separating tank where the debris is collected from the backwash flow which is then returned to the swimming pool. A timer controls the backwashing interval, at the end of which the valve is again reversed by a reversing mechanism, returning the system to normal filtering operation.

公开(公告)号：US3513977A

公开(公告)日：1970-05-26

申请号：US3513977D

申请日：1969-01-27

Applicant: MARINE SWIMMING POOL EQUIPMENT

Inventor： BELLINSON BERNARD

IPC: B01D29/11 ,  B01D35/143 ,  B01D35/14

CPC classification number: B01D29/117 ,  B01D29/96 ,  B01D35/143 ,  B01D35/30 ,  B01D2201/301 ,  B01D2201/304 ,  B01D2201/309

公开(公告)号：US3577571A

公开(公告)日：1971-05-04

申请号：US3577571D

申请日：1969-03-19

Applicant: MARINE SWIMMING POOL EQUIPMENT

Inventor： BELLINSON BERNARD ,  YOUNG HENRY R

IPC: E04H4/16 ,  E04H3/16 ,  E04H3/18

CPC classification number: E04H4/1681

Abstract: A swimming pool having in its sidewall a plurality of waterdelivery outlet sockets; in combination with selectively attachable cleaning hoses of the jet-propelled type, fountain heads for converting the water flow into a series of fountain sprays during nonuse of the cleaner hoses, and therapeutic jet nozzles for converting the flow into a water and air bubble mixture for ''''whirlpool'''' agitation of the water.

公开(公告)号：US3516660A

公开(公告)日：1970-06-23

申请号：US3516660D

申请日：1968-09-25

Applicant: MARINE SWIMMING POOL EQUIPMENT

Inventor： BELLINSON BERNARD ,  YOUNG HENRY R

IPC: A63B5/10

CPC classification number: A63B5/10

公开(公告)号：US3494596A

公开(公告)日：1970-02-10

申请号：US3494596D

申请日：1968-10-29

Applicant: MARINE SWIMMING POOL EQUIPMENT

Inventor： BELLINSON BERNARD ,  YOUNG HENRY R

IPC: E04F11/18 ,  E04H4/14 ,  E04H17/16 ,  A63B5/10

CPC classification number: E04F11/1851 ,  E04H4/144