公开(公告)号：US3773623A

公开(公告)日：1973-11-20

申请号：US3773623D

申请日：1972-02-25

Applicant: ECONOMICS LAB

Inventor： HATCHER H ,  TRUDA R ,  LECHNER T ,  MCDUFF C

IPC: C02F3/34 ,  B32B27/40

CPC classification number: C02F3/342 ,  Y10S435/911

Abstract: Slime formation is controlled (e.g., retarded or removed) by the intentional addition to industrial waters (e.g., white water in pulp and paper mills) of slime controlling amounts of the enzyme levan hydrolase.

公开(公告)号：US3698644A

公开(公告)日：1972-10-17

申请号：US3698644D

申请日：1971-02-17

Applicant: ECONOMICS LAB

Inventor： NYSTUEN DAVID L

IPC: B05B7/04 ,  B05B7/12 ,  B05B7/30 ,  D06F43/00

CPC classification number: B05B7/12 ,  B05B7/0408 ,  B05B7/30 ,  B05B12/002 ,  D06F43/002

Abstract: A portable hand-held spray gun having a hollow handle defining a water passageway therein, a venturi positioned in the water passageway and a product conduit line in communication with the throat of the venturi for injecting product (e.g. a liquid detergent) into the water flow. Two trigger-operated valves separately control the flow of water through the water passageway and the injection of the product into the water flow. A nozzle for forming a variable spray pattern is provided downstream of the venturi, the dimensions of the nozzle orifice and venturi throat being such that the injection rate of the product is essentially constant over a wide range of spray patterns.

公开(公告)号：US3545613A

公开(公告)日：1970-12-08

申请号：US3545613D

申请日：1968-10-11

Applicant: ECONOMICS LAB

Inventor： NYSTUEN DAVID L

IPC: B07B13/07 ,  B07C99/00 ,  B07C1/14

CPC classification number: B07B13/07 ,  B07C9/00 ,  Y10S209/926

公开(公告)号：US3492159A

公开(公告)日：1970-01-27

申请号：US3492159D

申请日：1968-10-18

Applicant: ECONOMICS LAB

Inventor： NOWLIN DUANE D

IPC: B01J39/04 ,  B08B3/00

CPC classification number: B01J39/07

公开(公告)号：US3444242A

公开(公告)日：1969-05-13

申请号：US3444242D

申请日：1968-03-04

Applicant: ECONOMICS LAB

Inventor： RUE LARRY M ,  BRUNELLE THOMAS E ,  MIZUNO WILLIAM G

IPC: C07C43/00 ,  C07C41/10 ,  C07C43/04 ,  C07C43/14

CPC classification number: C07C43/00

公开(公告)号：US3166512A

公开(公告)日：1965-01-19

申请号：US10105561

申请日：1961-04-06

Applicant: ECONOMICS LAB

Inventor： MIZUNO WILLIAM G

IPC: C01B25/455 ,  C11D3/395

CPC classification number: C11D3/3958 ,  C01B25/4555

公开(公告)号：US3031510A

公开(公告)日：1962-04-24

申请号：US68736557

申请日：1957-10-01

Applicant: ECONOMICS LAB

Inventor： CRECELIUS SAMUEL B

IPC: C11D1/722

CPC classification number: C11D1/722 ,  Y10S516/01

公开(公告)号：US3021862A

公开(公告)日：1962-02-20

申请号：US6062460

申请日：1960-10-05

Applicant: ECONOMICS LAB

Inventor： MILLER CARL A

IPC: A47L15/44

CPC classification number: A47L15/4427 ,  Y10T137/3112

公开(公告)号：US2183037A

公开(公告)日：1939-12-12

申请号：US2076635

申请日：1935-05-10

Applicant: ECONOMICS LAB

Inventor： MILWARD BAYLISS ,  WILSON JOHN L ,  ORDAL ERLING J

IPC: C11D1/14

CPC classification number: C11D1/146 ,  Y10S516/03

公开(公告)号：US1940217A

公开(公告)日：1933-12-19

申请号：US57371331

申请日：1931-11-07

Applicant: ECONOMICS LAB

Inventor： LANE THOMAS D

IPC: A47L15/44

CPC classification number: A47L15/4436