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    Method and apparatus for controlling the composition of fluids
    1.
    发明授权
    Method and apparatus for controlling the composition of fluids 失效
    用于控制流体组成的方法和装置

    公开(公告)号：US3565786A

    公开(公告)日：1971-02-23

    申请号：US3565786D

    申请日：1968-11-08

    Applicant: TEXACO INC

    Inventor： BROWN WILLIAM F ,  CROCKETT WILLIAM E ,  BRODEUR CHARLES H

    IPC: C10G73/34 ,  C10G21/30 ,  G01N33/28 ,  G05D11/08 ,  C10G43/08

    CPC classification number: G01N33/2835 ,  C10G21/30 ,  Y10S203/19 ,  Y10S208/01

    Abstract: DISCLOSED ARE METHODS AND APPARATUS FOR CONTROLLING THE COMPOSITION OF A FLUID SUCH AS THE SOLVENT MIXTURE UTILIZED IN SOLVENT DEWAXING PROCESSES. A PREFERRED METHOD FOR CONTROLLING SAID SOLVENT COMPOSITION INCLUDES THE STEPS OF GENERATING A FIRST SIGNAL REPRESENTATIVE OF A TARGET VALUE OF THE CONCENTRATION OF THE WAX ANTI-SOLVENT COMPONENT OF THE SOLVENT MIXTURE, SEPARATING THE SOLVENT MIXTURE INTO TWO FRACTIONS, ONE OF WHICH IS RICHER AND THE OTHER POORER OF THE WAX ANTI-SOLVENT COMPONENT, COMBINING THE FRACTIONS TO RE-ESTABLISH THE SOLVENT MIXTURE, SENSING THE CONCENTRATION OF THE ANTI-SOLVENT COMPONENT IN THE RE-ESTABLISHED SOLVENT MIXTURE AND PROVIDING A SECOND SIGNAL REPRESENTATIVE THEREOF, AND CONTROLLING THE AFOREMENTIONED COMBINING STEP IN RESPONSE TO THE FIRST AND SECOND SIGNALS IN A MANNER TENDING TO REDUCE THE DISPARITY BETWEEN THE CONCENTRATION SECOND SIGNAL AND THE TARGET VALUE FIRST SIGNAL, THEREBY TENDING TO ACHIEVE THE TARGET VALUE COMPOSITION OF THE RE-ESTABLISHES SOLVENT MIXTURE. A PREFERRED APPARATUS FOR CONTROLLING THE COMPOSITION OF THE AFOREMENTIONED SOLVENT MIXTURE INCLUDES SIGNAL GENERATING MEANS FOR PROVIDING A FIRST SIGNAL REPRESENTATIVE OF THE AFOREMENTIONED TARGET VALUE, MEANS INCLUDING A FRACTIONATOR FOR SEPARATING THE SOLVENTMIXTURE INTO THE AFOREMENTIONED FRACTIONS, MEANS INCLUDING A MIXING TANK WITH AUTOMATIC INLET FLOW CONTROL VALVES FOR COMBINING THE FRACTIONS TO RE-ESTABLISH THE SOLVENT MIXTURE, MEANS INCLUDING A PHOTOMETRIC ANALYZER FOR SENSING THE CONCENTRATION OF THE WAX ANTI-SOLVENT COMPONENT IN THE REESTABLISHED SOLVENT MIXTURE, AND MEANS INCLUDING A DUPLEX CONTROLLER RESPONSIVE TO THE FIRST AND SECOND SIGNALS FOR CONTROLLING THE MIXING TANK INLET VALVES IN A MANNER TENDING TO ACSHIEVE THE TARGET VALUE COMPOSITION OF THE REESTABLISHED SOLVENT MIXTURE.

    Credit card validation system
    4.
    发明授权
    Credit card validation system 失效
    信用卡验证系统

    公开(公告)号：US3611292A

    公开(公告)日：1971-10-05

    申请号：US3611292D

    申请日：1969-05-21

    Applicant: TEXACO INC

    Inventor： BROWN WILLIAM F ,  GOETCHIUS RONALD J ,  NOLTING JERRY L ,  ROUSE ALAN D

    IPC: G06K9/18 ,  G07F7/08 ,  H04Q9/00

    CPC classification number: G07F7/08 ,  G06K9/18 ,  G06Q20/4033

    Abstract: A credit card bearing a plurality of embossed decimal digits identifying an account number is inserted in a novel card holder which ensures accurate optical alignment or registration for character recognition purposes. The holder and the credit card contained therein are illuminated and as the holder is moved past a lens each digit is optically read one at a time; i.e. light reflected from the face of the card is directed through the lens and to a mask having a unique pattern of holes therethrough. Photodetectors associated with the mask translate reflected light passing through the holes into electrical signals representative of the card''s account number. These signals are ultimately encoded in binary form and delivered to a comparator to determine whether the binary-coded account number corresponds to a like binary-coded number stored in a suitable storage means.

    Credit card validation system using an opaque card having translucent coded areas
    5.
    发明授权
    Credit card validation system using an opaque card having translucent coded areas 失效
    信用卡验证系统使用具有透明编码区域的OPAQUE卡

    公开(公告)号：US3688088A

    公开(公告)日：1972-08-29

    申请号：US3688088D

    申请日：1970-09-18

    Applicant: TEXACO INC

    Inventor： BROWN WILLIAM F ,  GOETCHIUS RONALD J

    IPC: G07F7/08 ,  G06K21/04 ,  G06K7/10 ,  H04Q3/74

    CPC classification number: G07F7/08 ,  G06Q20/4033

    Abstract: Methodology and apparatus for optically reading, or recognizing, numbers in coded form, on such articles as credit cards and the like. The article is made of an opaque substance with prepositioned, coded, translucent areas forming a pattern corresponding to a coded form of the card number.

    Abstract translation: 用于光学阅读或识别编码形式的数字，诸如信用卡等的物品的方法和装置。 物品由具有预定位，编码的半透明区域的不透明物质制成，形成对应于牌号的编码形式的图案。

    Method for the contraction of data
    6.
    发明授权
    Method for the contraction of data 失效
    数据合同的方法

    公开(公告)号：US3613087A

    公开(公告)日：1971-10-12

    申请号：US3613087D

    申请日：1969-05-21

    Applicant: TEXACO INC

    Inventor： BROWN WILLIAM F ,  NOLTING JERRY L

    IPC: H03M7/30 ,  G06F5/00

    CPC classification number: H03M7/30

    Abstract: Methodology and apparatus for representing many numbers in an ordered sequence of numbers by substitute numbers where each such substitute number consists of fewer digits than the number for which it has been substituted and storing and processing signals representative of all the numbers in the ordered sequence, including the substitute numbers.

    Credit card validation system using an optical reader employing reflected light
    9.
    发明授权
    Credit card validation system using an optical reader employing reflected light 失效
    使用使用反射光的光学读取器的信用卡验证系统

    公开(公告)号：US3629835A

    公开(公告)日：1971-12-21

    申请号：US3629835D

    申请日：1969-05-21

    Applicant: TEXACO INC

    Inventor： BROWN WILLIAM F ,  GOETCHIUS RONALD J ,  FURMAN GEORGE R ,  ROUSE ALAN D

    IPC: G06K9/18 ,  G07F7/08 ,  H04Q3/00 ,  H04Q5/00

    CPC classification number: G07F7/08 ,  G06K9/18 ,  G06Q20/4033

    Abstract: Hereinafter disclosed is methodology and apparatus for optically reading, or recognizing, numbers on such articles such as credit cards and the like. According to one illustrative embodiment of the invention a credit card having an identifying number, or account number, consisting of a plurality of decimal digits is illuminated by a source of light. Reflected light from the face of the card is directed through a lens and projected on a mask which has a plurality of unique hole patterns therein. The light reflected from the digits on the card is considerably darker than the light reflected from other portions of the card. There is provided in the mask an individual pattern, or array, of holes for each digit''s reflected light. Each hole in each pattern of holes has associated therewith a photodetector. Hence, each pattern of holes has a corresponding pattern of photodetectors. For each of the decimal digits 0 through 9 on the card a unique pattern of illuminated and nonilluminated (or light and dark) photodetectors results. This unique pattern, or array, of light and dark photodetectors provides a unique set of signals which are representative of the particular decimal digit whose light has been reflected on the hole pattern in the mask. Ultimately, sets of such signals representing all the decimal digits are delivered to a comparator for the purpose of determining whether or not the number on the credit card corresponds to a like number stored in suitable storage means; said stored number also being delivered to the comparator.

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