公开(公告)号：US3924977A

公开(公告)日：1975-12-09

申请号：US40891273

申请日：1973-10-23

Applicant: LITTLE INC A

Inventor： MCCULLOUGH JOHN E

IPC: F04C2/02 ,  F01C1/02 ,  F01C21/00 ,  F03C2/02 ,  F04C18/02 ,  F04C23/00 ,  F04C1/02

CPC classification number: F01C1/0215 ,  F01C21/003 ,  F04C23/008 ,  F04C2250/10 ,  F05B2250/50

Abstract: A positive fluid displacement apparatus employing scroll members having interfitting spiroidal wraps angularly and radially offset such that as the spiral centers experience an orbiting motion, they define one or more moving fluid pockets of variable volume. The zones of lowest and highest pressure are connected to fluid ports. Radial sealing is accomplished with minimum wear by linking the orbiting scroll member to the driving mechanism through a radially compliant mechanical linking means which also incorporates means to counteract at least a fraction of the centrifugal force exerted by the orbiting of the orbiting scroll member. If essentially all of the centrifugal force is counteracted, then the compliant mechanical linking means is designed to supply the necessary radial sealing force. Coupling means, which are separate from the driving means, and hence from the radial constraining force, are provided to maintain the desired angular relationship between scroll members and to provide one opposing force for axial sealing. The other opposing axial sealing force is a combination of biasing means and fluid pressure. The apparatus may serve as a compressor, expander or pump.

公开(公告)号：US3883551A

公开(公告)日：1975-05-13

申请号：US21017071

申请日：1971-12-20

Applicant: LITTLE INC A

Inventor： RAZDAN RAJ K ,  PARS HARRY G

IPC: C07D333/38 ,  C07D495/04 ,  C07D65/08 ,  A61K27/00

CPC classification number: C07D495/04 ,  C07D333/38

Abstract: Novel thienobenzopyrans and thiopyranobenzopyrans represented by the formula

WHEREIN M AND N ARE EACH 0, 1, 2 OR 3 AND M + N IS 2 OR 3; R1 is loweralkyl; R2 is alkyl or cycloalkylloweralkyl and R3 is hydrogen, loweralkyl, loweralkanoyl, carbamyl, N-loweralkylcarbamyl, N,N-diloweralkylcarbamyl, phosphonyl, hemisuccinate or an ester of another such acid, phosphate, dialkylaminoalkyl of the structure

OR ACID ADDITION SALT THEREOF, OR DIALKYLAMINOALKANOYL OF THE STRUCTURE

OR ACID ADDITION SALT THEREOF, WHEREIN X IS 1 THROUGH 6 AND R4 and R5 are loweralkyl; the loweralkyl groups containing from 1 through 6 carbon atoms, the alkyl groups containing from 1 through 20 carbon atoms and the cycloalkyl groups containing from 3 through 8 ring carbon atoms. Novel intermediates for the synthesis of these compounds are also disclosed as well as methods for making the compounds.

Abstract translation: 新型噻吩并苯并吡喃并苯并吡喃并吡喃衍生物，其分子式为M和N，每个0,1,2或3，M + N为2或3; R1是低级烷基; R2是烷基或环烷基低级烷基，R3是氢，低级烷基，低级烷酰基，氨基甲酰基，N-低级烷基氨基甲酰基，N，N-二低级烷基氨基甲酰基，N，N-二低级烷基氨基甲酰基，膦酰基，半琥珀酸酯或另一种酸，磷酸酯，二烷基氨基烷基的酯或其酸性添加盐 ，或其盐或其酸加成盐的盐酸盐，其中X为1至6，R4和R5为低级烷基; 含有1至6个碳原子的低级烷基，含有1至20个碳原子的烷基和含3至8个环碳原子的环烷基。 还公开了用于合成这些化合物的新型中间体以及制备该化合物的方法。

公开(公告)号：US3844297A

公开(公告)日：1974-10-29

申请号：US33354773

申请日：1973-02-20

Applicant: LITTLE INC A

Inventor： LAUTZENHISER A

IPC: G07D1/00 ,  G07D9/06 ,  G07F1/04 ,  G07F5/24 ,  G07F3/04

CPC classification number: G07F1/048 ,  G07D3/04 ,  G07D5/08

Abstract: In apparatus for use in a coin operated device, apparatus for separating coins, loading a coin dispenser with the separated coins, and directing coins in excess of the capacity of the dispenser to a coin storage box.

Abstract translation: 在用于硬币操作装置的装置中，用于分离硬币的装置，用分开的硬币装载硬币分配器，以及将超过分配器容量的硬币引导到硬币储存盒。

公开(公告)号：US3728360A

公开(公告)日：1973-04-17

申请号：US3728360D

申请日：1971-08-31

Applicant: LITTLE INC A

Inventor： PARS H ,  RAZDAN R ,  WEINHARDT K

IPC: C07D311/80 ,  C07D7/18

CPC classification number: C07D311/80

Abstract: Novel 1-( omega -(dilower-alkylamino)acyloxy)-3-alkyl(and cycloalkyl-lower-alkyl) 6a, 7,8,10a-(and 6a,7,10,10a- and 7,8,9,10-)tetrahydro-6,6,9-trilower-alkyl-6H-dibenzo(b,d)pyrans and acid salts thereof. These compounds possess biological acitivity and are useful as therapeutic agents.

Abstract translation: 新的1- [ω-（二 - 烷基氨基）酰氧基] -3-烷基（和环烷基 - 低级 - 烷基）6a，7,8,10a-（和6a，7,10,10a-和7,8,9， 10-）四氢-6,6,9-三氟 - 烷基-6H-二苯并[b，d]吡喃及其酸盐。 这些化合物具有生物活性，可用作治疗剂。

公开(公告)号：US3688584A

公开(公告)日：1972-09-05

申请号：US3688584D

申请日：1971-02-09

Applicant: LITTLE INC A

Inventor： STONE RICHARD S ,  LAPSON LAWRENCE B

IPC: G01V7/14 ,  G01V7/04

CPC classification number: G01V7/14

Abstract: Apparatus for measuring gravity gradients directly. Two retroreflectors are caused to experience free flight, and the radiation reflected by these retroreflectors during free flight is directed to a radiation receiver which senses and measures the temporal variations of intensity of the interfering reflected radiation beams. The time rate of change of the frequency of the output signal of the receiver is directly related to the vertical gradient of gravity. The instrument of this invention has means to correct for any shifting of the retroreflectors relative to each other and to the radiation beam in planes normal to the radiation beam.

Abstract translation: 直接测量重力梯度的装置。 导致两个后向反射器经历自由飞行，并且在自由飞行期间由这些回射器反射的辐射被引导到辐射接收器，其感测并测量干涉反射辐射束的强度的时间变化。 接收机输出信号频率的时间变化率与垂直重力梯度直接相关。 本发明的仪器具有校正反射器相对于彼此的任何偏移以及垂直于辐射束的平面中的辐射束的装置。

公开(公告)号：US3686828A

公开(公告)日：1972-08-29

申请号：US3686828D

申请日：1962-06-08

Applicant: LITTLE INC A

Inventor： DRAKE ELISABETH M ,  GIFFORD WILLIAM E

IPC: B01D47/00 ,  B01D53/24

CPC classification number: B01D47/00

Abstract: Fractionation method and apparatus in which an angular velocity is imparted to a vapor to form a rotating vapor stream and liquid droplets are introduced into the rotating stream to provide a centrifugal force to impel the droplets in a path through the stream, the path being of a length to attain vapor-liquid equilibrium. The liquid droplets are collected by impingement. High mass transfer and high flow rates are achieved.

Abstract translation: 分级方法和装置，其中将角速度赋予蒸汽以形成旋转的蒸气流，并且将液滴引入旋转流中以提供离心力以将液滴推动通过流的路径，该路径为 长度达到气液平衡。 通过冲击收集液滴。 实现了高质量传递和高流量。

公开(公告)号：US3674809A

公开(公告)日：1972-07-04

申请号：US3674809D

申请日：1970-07-30

Applicant: LITTLE INC A

Inventor： PAPANASTASSIOU ZINON B ,  NEUMEYER JOHN L

IPC: C07D209/14 ,  C07D403/06 ,  C07D27/56

CPC classification number: C07D403/06 ,  C07D209/14

Abstract: New 3-indoleglyoxamides and (3-indole)-lower-alkylamines having useful C.N.S. depressant activity and prepared, respectively, by reaction of a 3-indoleglyoxalyl halide or a (3-indole)-loweralkyl halide with an appropriate amine.

公开(公告)号：US3674486A

公开(公告)日：1972-07-04

申请号：US3674486D

申请日：1970-02-02

Applicant: LITTLE INC A

Inventor： MILGROM JACK

IPC: G03F7/038 ,  G03C1/68

CPC classification number: G03F7/038 ,  Y10S430/117 ,  Y10S430/12 ,  Y10S430/124 ,  Y10S430/126

Abstract: A PHOTORESIST MATERIAL SUITABLE FOR EXPOSURE THROUGH A PROCESS TRANSPARENCY TO ACTINIC LIGHT TO PRODUCE A LETTERPRESS PRINTING PLATE AND A METHOD OF PRODUCING SUCH A PRINTING PLATE. EXPOSURE MAY BE ACCOMPLISHED WHILE THE PLATE IS MOUNTED ON A CYLINDER TO ELIMINATE THE NEED FOR POSSIBLE DISTORTION COMPENSATION.

公开(公告)号：US3647373A

公开(公告)日：1972-03-07

申请号：US3647373D

申请日：1968-10-16

Applicant: LITTLE INC A

Inventor： HUSKA PAUL A ,  MEISSNER HERMAN P ,  LAMB THOMAS J

IPC: C01F7/30 ,  C01F7/02 ,  C01B21/42 ,  C01F7/08

CPC classification number: C01F7/308

Abstract: Method and apparatus for converting an aluminum nitrate solution to Alpha -alumina for electrolytic reduction to aluminum. The solution is introduced into a fluidized bed under conditions which remove a substantial portion of the nitrate values as nitric acid vapor and form a solid product which is heated further to remove residual water and nitrate values and to convert the alumina to Alpha -alumina.

Abstract translation: 将硝酸铝溶液转换成α-氧化铝用于电解还原成铝的方法和装置。 将溶液引入流化床中，其条件是除去大部分硝酸盐值作为硝酸蒸气并形成固体产物，进一步加热以除去残留的水和硝酸盐值并将氧化铝转化为α-氧化铝。

公开(公告)号：US3639427A

公开(公告)日：1972-02-01

申请号：US3639427D

申请日：1970-01-08

Applicant: LITTLE INC A

Inventor： RAZDAN RAJ K ,  GRANCHELLI FELIX E ,  PARS HARRY G

IPC: C07D311/94 ,  C07D7/18

CPC classification number: C07D311/94

Abstract: NEW 1,2,3,4 - TETRAHYDROCYCLOPENTA(C)(1)BENZOPYRANS AND 1,2,3,4,12,13 - HEXAHYDROCYCLOPENTA(C)(1)BENZOPYRANS HAVING C.N.S. ACTIVITY.