Apparatus and method for testing the level of an item in liquid
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-001/14
G01N-021/59
출원번호
US-0854240
(1992-03-20)
발명자
/ 주소
Doll Robert J. (Lockport NY)
출원인 / 주소
Lindemuth
Richard L. (North Tonawanda NY 04a part interest)
인용정보
피인용 횟수 :
1인용 특허 :
0
초록▼
Apparatus for measuring the level of an item in a liquid including first and second light transmitting cylinders, a first piston and an associated conduit for conducting liquid to the first cylinder, a second piston and an associated conduit for conducting liquid to the second cylinder, a third pist
Apparatus for measuring the level of an item in a liquid including first and second light transmitting cylinders, a first piston and an associated conduit for conducting liquid to the first cylinder, a second piston and an associated conduit for conducting liquid to the second cylinder, a third piston and an associated conduit for conducting indicator solution to the second cylinder, a light source for transmitting light through the first and second cylinders, and a detector for measuring the difference in light transmissibility of the liquids in the first and second cylinders and providing an output depending thereon. A method of testing the level of an item in a liquid including the steps of providing a first sample of the liquid containing the item, providing a second sample of the liquid with a measured amount of indicator solution therein, comparing the light transmissibility of the first and second samples, and providing an output which is a measurement of the level of the item in the liquid.
대표청구항▼
Apparatus for measuring the level of an item in a liquid comprising first and second light-transmitting cylinders, first and second pistons associated with said first and second cylinders, respectively, a third cylinder, a third piston associated with said third cylinder, lever means, means coupling
Apparatus for measuring the level of an item in a liquid comprising first and second light-transmitting cylinders, first and second pistons associated with said first and second cylinders, respectively, a third cylinder, a third piston associated with said third cylinder, lever means, means coupling said first and second and third pistons to said lever means, first and second conduit means in communication with said first and second cylinders, respectively, a source of indicator solution, third conduit means for effecting communication between said second and third cylinders, fourth conduit means for effecting communication between said source of indicator solution and said third cylinder, motor means for actuating said lever means to cause said first and second pistons to draw liquid into said first and second cylinders, respectively, through said first and second conduit means, respectively, and for causing said third piston to eject indicator solution into said second cylinder through said third conduit means, and for causing said first and second pistons to eject said liquid and a mixture of said liquid and indicator solution from said first and second cylinders, respectively, and for causing said third piston to draw indicator solution into said third cylinder through said fourth conduit means from said source of indicator solution, light source means for transmitting light through said first and second cylinders, and detector circuit means for providing an output based on the different light transmissions through solutions in said first and second cylinders.
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이 특허를 인용한 특허 (1)
Alexander, Peter L., Chlorination apparatus and method.
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