公开(公告)号：US3614355A

公开(公告)日：1971-10-19

申请号：US3614355D

申请日：1969-04-14

Applicant: COQ NV

Inventor： BOERSMA RINTJE

IPC: B01J23/885 ,  H01H33/56 ,  H02B13/055

CPC classification number: H02B13/055 ,  B01J23/885 ,  H01H33/56 ,  H01H33/562

Abstract: Metal clad switch gear for high voltages comprising switches and accessories, low-overpressure and high-overpressure compartments filled with SF6-gas and a gas-controlsystem controlling the flow of gas to and from said compartments and keeping both the pressure difference between said compartments and the density of the SF6-gas in the low-overpressure compartment(s) substantially constant.

公开(公告)号：US3567885A

公开(公告)日：1971-03-02

申请号：US3567885D

申请日：1968-08-19

Applicant: COQ NV

Inventor： BOERSMA RINTJE

IPC: H01H33/12 ,  H01H33/16 ,  H01H33/30 ,  H01H33/82 ,  H01H33/873 ,  H01H33/80

CPC classification number: H01H33/82 ,  H01H33/12 ,  H01H33/166 ,  H01H33/302

Abstract: A gas blast circuit-breaker for isolating purposes and switching normal loads only, comprising a fixed main contact, a movable main contact cooperating therewith and two cooperating movable arcing contacts, of which the first one is rigidly connected with the movable main contact and the second one is electrically connected with the fixed main contact and is adapted to move, during the switching-off operation, together and in contact with the first arcing contact till a little past the separation of the main contacts, said second arcing contact being formed as a nozzle contact, the passage of which is opened during the switching-off operation as to allow extinguishing gas to escape from the switching chamber to quench the switching arc set up between the arcing contacts after their separation.

公开(公告)号：US3564344A

公开(公告)日：1971-02-16

申请号：US3564344D

申请日：1968-06-05

Applicant: COQ NV

Inventor： BOERSMA RINTJE

IPC: H02B13/035 ,  H02B1/04 ,  H01H33/82

CPC classification number: H02B13/035

Abstract: A high voltage system includes at least two horizontal parallel bus bar systems enclosed in metal tubes and switching units connected thereto. The switching units each contain at least a circuit breaker and two bus bar isolating switches connected in series therewith and each isolating switch is connected to a bar of the bus bar system. The circuit breaker and the isolating switches are accommodated in a common metal casing which is joined to the metal tubes enclosing the bus bars through the medium of tubular extensions or collars which are joined to tubular parts extending perpendicularly upwardly from the metal tubes, the fixed contact of each isolating switch being permanently connected to the relevant bus bar and being contained in a respective one of the tubular parts.

公开(公告)号：US3564179A

公开(公告)日：1971-02-16

申请号：US3564179D

申请日：1969-06-09

Applicant: COQ NV

Inventor： BOERSMA RINTJE ,  IRIK GIJSBERT W

IPC: H01H33/86 ,  H01H33/83 ,  H01H33/867 ,  H01H33/873 ,  H01H33/54 ,  H01H33/80

CPC classification number: H01H33/83

Abstract: Metal clad gas blast circuit breaker which is exclusively adapted to interrupt a circuit, the switching element thereof being accommodated in a metal casing containing high-pressure and low-pressure compartments filled with insulating gas under overpressure, said circuit breaker comprising a safety valve and means to control said valve in such a manner, that the overpressures in said compartment can never fall below predetermined values.

公开(公告)号：US3520990A

公开(公告)日：1970-07-21

申请号：US3520990D

申请日：1969-04-07

Applicant: COQ NV

Inventor： BOERSMA RINTJE

IPC: H02G5/06 ,  H01B17/16

CPC classification number: H02G5/068

公开(公告)号：US3627940A

公开(公告)日：1971-12-14

申请号：US3627940D

申请日：1970-08-28

Applicant: COQ NV

Inventor： BOERSMA RINTJE ,  IRIK GIJSBERT WALDEMAR

IPC: H01H3/40 ,  H01H9/16 ,  H01H31/32 ,  H01H33/32 ,  H01H33/46 ,  H01H31/00

CPC classification number: H01H33/32 ,  H01H3/40 ,  H01H9/16 ,  H01H31/32 ,  H01H33/46

Abstract: Earthing switch, of which the movable switching contact is normally driven by a piston and is also coupled with a nonselfbraking screwed rod, by means of which the switching contact can be driven by hand, said screwed rod forming at the same time part of a locking mechanism to lock the switching contact in its end positions and of an indicator to indicate the position of the switching contact.

公开(公告)号：US3571547A

公开(公告)日：1971-03-23

申请号：US3571547D

申请日：1969-06-04

Applicant: COQ NV

Inventor： BOERSMA RINTJE ,  IRIK GIJSBERT W

IPC: H01H1/58 ,  H01H1/38 ,  H01H1/62 ,  H01H1/48

CPC classification number: H01H1/62 ,  H01H1/38

Abstract: An electric switch having an axially movable switching contact and a resilient annular fixed contact. The fixed contact is in permanent contact with said switching contact and consists of a zigzag folded metal strip surrounded and supported by an annular holder. The metal strip is bent in the shape of a ring which snugly encloses the switching contact and is constituted by a circular series of pairs of contact lips.

公开(公告)号：US3569641A

公开(公告)日：1971-03-09

申请号：US3569641D

申请日：1969-10-20

Applicant: COQ NV

Inventor： BOERSMA RINTJE ,  IRIK GIJSBERT W

IPC: H01H3/40 ,  H01H9/16 ,  H01H31/00 ,  H01H31/24 ,  H01H31/32 ,  H01H33/46 ,  H02B13/035 ,  H02B13/075 ,  H01H9/20

CPC classification number: H01H3/40 ,  H01H9/16 ,  H01H31/003 ,  H01H31/24 ,  H01H33/46 ,  H01H2003/405 ,  H01H2009/0292 ,  H02B13/035 ,  H02B13/075

Abstract: A metal-clad isolator switch for high voltage, comprising fixed contacts, movable switching contacts cooperating with said fixed contacts and at least one earthing switch, of which the fixed contact is attached to the envelope of the isolator switch and the movable contact is carried by the holder of the movable switching contacts of the isolator switch, said movable earthing contact being directly mechanically driven and directly mechanically locked in either end position by a movable switching contact of the isolator switch.

公开(公告)号：US3567892A

公开(公告)日：1971-03-02

申请号：US3567892D

申请日：1969-10-20

Applicant: COQ NV

Inventor： BOERSMA RINTJE ,  IRIK GIJSBERT W

IPC: H01H1/58 ,  H01H1/38 ,  H01H1/10

CPC classification number: H01H1/38

Abstract: An electric switch having an axially movable switching rod and a fixed contact which is in permanent contact with said switching contact. The fixed contact comprising a zigzag folded metal contact strip which is bent in the shape of an uninterrupted ring. The inner circumference of said ring is bent in the shape of longitudinally split tubes extending in the direction of the width of said strip and interconnecting the parts of the folded strip that adjoin each other at said inner circumference.

公开(公告)号：US3553406A

公开(公告)日：1971-01-05

申请号：US3553406D

申请日：1968-03-28

Applicant: COQ NV

Inventor： BOERSMA RINTJE

IPC: H01H1/14 ,  H01H33/30 ,  H01H33/70 ,  H01H33/82 ,  H01H33/83 ,  H01H33/867 ,  H01H33/873 ,  H01H33/86

CPC classification number: H01H33/82 ,  H01H1/14 ,  H01H33/302 ,  H01H33/7038 ,  H01H33/83

Abstract: A gas blast circuit breaker comprising at least two cooperating movable contacts, of which each one is attached to a piston adapted to be driven by the extinguishing gas, the stroke of one contact and its piston being smaller than that of the other contact and its piston, the piston having the smallest stroke being used to start the opening operation of the circuit breaker and to open a valve, the opening of said valve allowing extinguishing gas to escape and to extinguish the switching arc and effecting the exposure of the piston having the greater stroke to the pressure of the extinguishing gas, and means for automatically effecting a delayed reclosing operation of the circuit breaker.