公开(公告)号：US2790872A

公开(公告)日：1957-04-30

申请号：US39568353

申请日：1953-12-02

Applicant: SPECIALTIES DEV CORP

Inventor： HELSPER ROBERT G

IPC: H01B7/10 ,  H01H3/14

CPC classification number: H01B7/10 ,  H01H3/142

公开(公告)号：US2770162A

公开(公告)日：1956-11-13

申请号：US29195252

申请日：1952-06-05

Applicant: SPECIALTIES DEV CORP

Inventor： FLEMING WILLIAM T

IPC: G01N21/29

CPC classification number: G01N21/29

公开(公告)号：US2745807A

公开(公告)日：1956-05-15

申请号：US32440252

申请日：1952-12-05

Applicant: SPECIALTIES DEV CORP

Inventor： ANTHONY JR CHARLES ,  THOMANN JR ROBERT

IPC: A62D1/00

CPC classification number: A62D1/0035

公开(公告)号：US2728827A

公开(公告)日：1955-12-27

申请号：US34417453

申请日：1953-03-23

Applicant: SPECIALTIES DEV CORP

Inventor： TOWLE ROBERT G

IPC: H01B7/10 ,  H01H3/14

CPC classification number: H01B7/10 ,  H01H3/142

公开(公告)号：US2717042A

公开(公告)日：1955-09-06

申请号：US15306450

申请日：1950-03-31

Applicant: SPECIALTIES DEV CORP

Inventor： GRANT JR HARRY C ,  BANCROFT PARSONS FLOYD

IPC: F16K17/40

CPC classification number: F16K13/06 ,  Y10T137/1647

公开(公告)号：US2699364A

公开(公告)日：1955-01-11

申请号：US23454651

申请日：1951-06-30

Applicant: SPECIALTIES DEV CORP

Inventor： SCHMIDLIN ALBERTUS E

IPC: F16C17/04

CPC classification number: F16C17/04

公开(公告)号：US2697447A

公开(公告)日：1954-12-21

申请号：US16227950

申请日：1950-05-16

Applicant: SPECIALTIES DEV CORP

Inventor： TROY RAYMOND A

IPC: F16K1/30

CPC classification number: F16K1/306 ,  F16K1/307 ,  Y10T137/86678

公开(公告)号：US2692528A

公开(公告)日：1954-10-26

申请号：US20290850

申请日：1950-12-27

Applicant: SPECIALTIES DEV CORP

Inventor： UHL ARTHUR W

IPC: G01N21/29

CPC classification number: G01N21/29

公开(公告)号：US2678366A

公开(公告)日：1954-05-11

申请号：US25548351

申请日：1951-11-08

Applicant: SPECIALTIES DEV CORP

Inventor： HEBENSTREIT LESTER V

IPC: G01K7/02 ,  G08B17/06

CPC classification number: G01K7/023 ,  G08B17/06 ,  Y10S439/901 ,  Y10S439/935

公开(公告)号：US2668419A

公开(公告)日：1954-02-09

申请号：US25324351

申请日：1951-10-26

Applicant: SPECIALTIES DEV CORP

Inventor： DANIEL MAPES

IPC: C01B32/50 ,  F17C7/00 ,  F17C11/00

CPC classification number: F17C7/00 ,  C01B32/50 ,  F17C11/00 ,  F17C2205/0329 ,  F17C2221/013 ,  F17C2223/0161 ,  F17C2223/035 ,  F17C2270/0754 ,  F17C2270/0772 ,  Y02E60/321

Abstract: 705,465. Dispensing liquefied gas. SPECIALTIES DEVELOPMENT CORPORATION. May 20, 1952 [Oct. 26, 1951], No. 12712/52. Class 102 (2). [Also in Group XXI] Liquid carbon dioxide is prevented from freezing and blocking a valve controlled outlet 20 of a high pressure container 10 by mixing with a halogenated hydrocarbon having.freezing and boiling points below and above 70‹ F. at 150 p.s.i. pressure respectively and also an inert compressed gas capable of exerting a pressure of more than 100 p.s.i. at -80‹ F. and which also serves to expel the liquid mixture through a syphon tube 18. The inert gas is preferably nitrogen but may be air, hydrogen, oxygen, argon, helium, neon, carbon monoxide or carbon tetrafluoride and the halogenated hydrocarbons may be any of a given list of twenty seven compressing substituted halogen compounds of methane or ethane in the ratio of one part by weight to between 2 and 8 parts of carbon dioxide. Between 3 and 10 parts of inert gas are associated with between 65 and 140 parts of carbon dioxide and halogenated hydrocarbon combined. Specification 621,019 is referred to.