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    SPRING-LOADED VALVE
    2.
    发明申请
    SPRING-LOADED VALVE 审中-公开
    弹簧加载阀

    公开(公告)号：WO1982003259A1

    公开(公告)日：1982-09-30

    申请号：PCT/US1982000326

    申请日：1982-03-15

    Applicant: CONTROL DEVICES INC

    Inventor： CONTROL DEVICES INC ,  PURVIS MICHAEL J

    IPC: F16K15/18

    CPC classification number: F04B39/102 ,  F16K15/028 ,  F16K17/0413 ,  F16K17/168

    Abstract: La presente invention se rapporte au domaine des soupapes de retenue a ressort. Les soupapes de retenue de l'art anterieur se composent d'un grand nombre de parties, ce qui complique les etapes d'assemblage en rendant plus difficile le controle des soupapes de retenue. La presente invention decrit une soupape de retenue possedant un nombre minimum de parties, qui est facile a assembler et dont l'organe et le siege de soupape peuvent etre controles soit qu'il soit necessaire de demonter la soupape. La soupape de retenue comprend un ressort en spirale (29) qui ne sert pas uniquement a retenir le clapet (33) contre son siege (25) mais aussi a retenir l'organe de soupape monte dans la soupape.

    7.
    发明专利
    未知

    公开(公告)号：IT1139786B

    公开(公告)日：1986-09-24

    申请号：IT2515281

    申请日：1981-11-18

    Applicant: CONTROL DEVICES INC

    Inventor： KRECHEL JOSEPH L ,  PURVIS MICHAEL J

    IPC: F16K17/04 ,  F04B49/02 ,  F16K15/00 ,  F16K15/06 ,  F16K

    Abstract: An unloader/check valve for use with an air compressor comprising a one-piece valve body, a valve member slidable in the body between open and closed positions, biased toward its closed position, the valve having a bleed for unloading the compressor when the valve member is in its closed position, and a dashpot arrangement for damping pulsations of the valve member.

    8.
    发明专利
    未知

    公开(公告)号：DE3151567A1

    公开(公告)日：1982-10-28

    申请号：DE3151567

    申请日：1981-12-28

    Applicant: CONTROL DEVICES INC

    Inventor： KRECHEL JOSEPH L ,  PURVIS MICHAEL J

    IPC: F16K17/04 ,  F04B49/02 ,  F16K15/00 ,  F16K15/06 ,  F16K15/02 ,  F04B39/10

    Abstract: An unloader/check valve for use with an air compressor comprising a one-piece valve body, a valve member slidable in the body between open and closed positions, biased toward its closed position, the valve having a bleed for unloading the compressor when the valve member is in its closed position, and a dashpot arrangement for damping pulsations of the valve member.

    UNLOADER/CHECK VALVE
    9.
    发明专利
    UNLOADER/CHECK VALVE 未知

    公开(公告)号：CA1161409A

    公开(公告)日：1984-01-31

    申请号：CA391161

    申请日：1981-11-30

    Applicant: CONTROL DEVICES INC

    Inventor： KRECHEL JOSEPH L ,  PURVIS MICHAEL J

    IPC: F16K17/04 ,  F04B49/02 ,  F16K15/00 ,  F16K15/06

    Abstract: UNLOADER/CHECK VALVE An unloader/check valve for use with an air compressor comprising a one-piece valve body, a valve member slidable in the body between open and closed positions, biased toward its closed position, the valve having a bleed for unloading the compressor when the valve member is in its closed position, and a dashpot arrangement for damping pulsations of the valve member.

    SPRING-LOADED VALVE
    10.
    发明专利
    SPRING-LOADED VALVE 未知

    公开(公告)号：GB2107832A

    公开(公告)日：1983-05-05

    申请号：GB8231473

    申请日：1982-03-15

    Applicant: CONTROL DEVICES INC

    Inventor： PURVIS MICHAEL J

    IPC: F16K15/06 ,  F04B39/10 ,  F16K15/02 ,  F16K17/04 ,  F16K17/168 ,  F16K15/18 ,  F16K15/00

    Abstract: This invention relates to the field of spring-loaded check valves. Prior check valves have required a great number of parts and thus complicated assembly steps were required; this rendered inspection of the check valve more difficult. This invention comprises a check valve which has a minimum number of parts, which is easy to assemble and whose valve member and seat are readily inspected without disassembly of the valve. The check valve includes a coil spring (29) which functions not only to bias the valve member (33) toward its seat (25) but also to retain the valve member in assembly with the valve.

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