公开(公告)号：WO1998024104A1

公开(公告)日：1998-06-04

申请号：PCT/US1997021293

申请日：1997-11-25

Applicant: ROBERTSHAW CONTROLS COMPANY ,  HONSBERGER, Brent, A. ,  KINDLER, Matthew, J. ,  WEBER, Robert, L.

Inventor： ROBERTSHAW CONTROLS COMPANY

IPC: H01H37/22

CPC classification number: H01H89/04 ,  H01H37/22

Abstract: The invention is an infinite switch (100) for controlling heat output of a heater element by controlling a time duration that the heater element receives current. The switch has a bi-metal strip (106) and a strip heater (105). The bi-metal strip (106) exerts a force by bending in the direction of the low expansion metal. The force of the bending is proportional to a duration of activation of the strip heater (105). The switch (100) has a set of cycling contacts for making and breaking current flow through the strip heater (105) and the heat element. The switch (100) also has a cycling arm (112) for adjusting the time duration that the cycling contacts (115, 116) are opened and closed. The switch (100) also has a pivot arm (110) that contacts the cycling arm (112) on one side, and contacts the bi-metal strip (106) on the other side. The force from the bi-metal strip (106) rotates the pivot arm (110) about a pivot point (143) until the pivot arm (110) engages the cycling arm (112). The cycling arm (112) prevents any further rotation, and thus, the force from the bi-metal strip (106) laterally shifts the pivot arm (110) to engage a snap spring (109) which opens the cycling contacts (115, 116).

Abstract translation: 本发明是通过控制加热器元件接收电流的持续时间来控制加热器元件的热输出的无限开关（100）。 开关具有双金属带（106）和带状加热器（105）。 双金属条（106）通过在低膨胀金属的方向上弯曲而施加力。 弯曲的力与带状加热器（105）的激活持续时间成比例。 开关（100）具有一组循环触点，用于使通过带状加热器（105）和热元件的电流流动。 开关（100）还具有用于调节循环接触（115,116）打开和关闭的持续时间的循环臂（112）。 开关（100）还具有在一侧接触循环臂（112）的枢转臂（110），并且在另一侧接触双金属带（106）。 来自双金属条（106）的力使枢转臂（110）围绕枢转点（143）旋转，直到枢转臂（110）接合循环臂（112）。 循环臂（112）防止任何进一步的旋转，因此来自双金属条（106）的力横向地移动枢转臂（110）以接合卡扣弹簧（109），弹簧弹簧（109）打开循环触头（115,116 ）。

公开(公告)号：WO1997019296A1

公开(公告)日：1997-05-29

申请号：PCT/US1996018778

申请日：1996-11-21

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  MARTIN, David, D. ,  RAY, Douglas, W.

IPC: F23N01/00

CPC classification number: F24C3/126 ,  F23N1/007 ,  F23N2025/04 ,  F23N2027/36 ,  F23N2035/14 ,  F23N2035/20 ,  F23N2035/24 ,  F23N2041/08 ,  F24C3/128

Abstract: A fluid control assembly that includes fluid valving (103, 105), fluid regulation, automatic safety shut-off valving and manual shut-off valving (278) in one assembly, a novel fluid control unit (100) that integrates the above functions in one unit (100), and a novel ignitor (310) and a novel seal and diaphragm (138) for use in the assembly (100).

Abstract translation: 一种流体控制组件，其在一个组件中包括流体阀（103,105），流体调节，自动安全切断阀和手动关闭阀（278），一种新颖的流体控制单元（100），其将上述功能集成 一个单元（100）和一个新的点火器（310）和用于组件（100）的新颖的密封和隔膜（138）。

公开(公告)号：WO1991016577A1

公开(公告)日：1991-10-31

申请号：PCT/US1991002454

申请日：1991-04-04

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  RIEHL, Fred

IPC: F23Q03/00

CPC classification number: F24C3/103 ,  F23D14/06

Abstract: A burner construction and method of making the same are provided, the burner construction (20) comprising a burner body (23) having a chamber (24) therein and having opposed ends (25, 26), one of which is open to the chamber and the other of which has structure (27) for interconnecting a source of fuel (28) to the chamber, and a removable cap (29) closing the one end (25) of the body (23), the cap having opposed sides (40, 42) and an annular peripheral edge (41) interconnecting the opposed sides together, the burner construction (20) having ports (30) interconnecting the chamber (24) to the exterior of the burner construction and through which the fuel can issue to burn externally to the burner construction, the cap (29) having an annular groove (65) in one of the opposed sides (40, 42) thereof and inboard of the peripheral edge (41) thereof, the burner body (23) having a projection (63) disposed in the groove (65) to hold the cap (29) on the one end (25) of the burner body (23) in its closing position thereof.

公开(公告)号：WO1990004735A1

公开(公告)日：1990-05-03

申请号：PCT/US1989004582

申请日：1989-10-11

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  HUTCHISON, Donald, W. ,  KIMMEL, Steven, A. ,  BONKOVICH, Raymond, J. ,  CHEW, James, P. ,  RATH, David, J.

IPC: F16K31/08

CPC classification number: F23N1/005 ,  F23N2023/04 ,  F23N2023/08 ,  F23N2023/20 ,  F23N2035/16 ,  F23N2035/22

Abstract: A fuel control system, throttle valve unit therefor and methods of making the same are provided, the system (25) comprising a burner (21), a source of fuel (26) and a throttle valve unit (28) for interconnecting the source to the burner, the throttle valve unit (28) having an electrically operated unit (51) operatively associated with a movable valve member (38) to control the position of the valve member relative to the valve seat (36) so as to control the flame height at the burner (21), the electrically operated unit (51) comprising a fixed magnet unit (52) and a movable magnet unit (53), one of the magnet units having an electrical conductor (56) that is adapted to vary the force of its magnetic field in relation to the magnitude of an electrical current passing therethrough, whereby the valve member (38) is adapted to be positioned relative to the valve seat (36) in relation to the effect created between the magnetic fields.

公开(公告)号：WO1990004088A1

公开(公告)日：1990-04-19

申请号：PCT/US1989004232

申请日：1989-09-26

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  WAGNER, Joseph, P.

IPC: F01P07/02

CPC classification number: F01P7/167 ,  F01P2070/04 ,  G05D23/1921

Abstract: An engine cooling system, structure therefor and methods of making the same are provided, the system comprising a housing (21) having an inlet (22) and an outlet (23), and a thermostat construction (24) disposed in the housing (21) between the inlet (22) and the outlet (23) for controlling the degree of fluid flow therebetween, the thermostat construction (24) comprising a valve seat unit (29), a valve closure unit (35) for opening and closing the valve seat unit, a spring (43') operatively interconnected to the valve closure unit (35) to tend to close the same against the valve seat unit (29), and a temperature responsive device (39) comprising a piston member (41) and a cylinder member (40) that are adapted to provide relative movement therebetween when the device senses certain temperatures.

公开(公告)号：WO1988004381A1

公开(公告)日：1988-06-16

申请号：PCT/US1987003008

申请日：1987-11-18

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  KELLY, Samuel, T. ,  KATCHKA, Jay, R.

IPC: F16K11/14

CPC classification number: F23N1/005 ,  F23N5/107 ,  F23N2035/14 ,  F23N2035/18 ,  Y10T137/1516 ,  Y10T137/8309 ,  Y10T137/87016 ,  Y10T137/87756

Abstract: A fuel control valve construction, parts therefor, and methods of making the same, the construction comprising a housing (21) having an inlet (22) that is adapted to be interconnected to a fuel source, and an outlet (24) that is adapted to be interconnected to a main burner (25), the housing (21) having a pilot outlet (63) that is adapted to be interconnected to a pilot burner (31) for the main burner (25), the housing (21) having a pilot valve seat (30) and a main valve seat (26) for interconnecting the inlet (22) respectively with the pilot outlet (63) and the main outlet (24), the housing (21) having a movable pilot valve member (32) for opening and closing the pilot valve seat (30), and a movable main valve member (28) for opening and closing the main valve seat (26), the housing (21) having a movable lever (33) that carries the pilot valve member (32) and the main valve member (28), and also having a manually operable actuator (40) for controlling the operating positions of the lever (33).

公开(公告)号：WO1998027520A1

公开(公告)日：1998-06-25

申请号：PCT/US1997020223

申请日：1997-11-12

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  LEASE, Benjamin, N. ,  PIERSON, Otis, P.

IPC: G08B21/00

CPC classification number: G01F23/266 ,  G01F23/268

Abstract: A level detector circuit (10) for detecting a level of immersion of an elongated probe (12) within a liquid. The level detection circuit includes a first set of transistors (112, 114). One of these transistors charges an elongated probe and a second charges a capacitor (60). A reference current source (54) provides a reference current based on the charging current provided to the elongated probe by the first transistor and an additional transistor which also charges the probe at a rate such that the voltage on the capacitor and the probe are maintained the same. A monitoring circuit (62) develops an analog level signal based on the current provided by the reference current source. This analog level signal is converted by the combination of an analog to digital circuit (82) and a microprocessor (50) for providing a pulse frequency modulated communications signal corresponding to the analog level signal which in turn is related to the length of the probe immersed within the liquid.

Abstract translation: 一种水平检测器电路（10），用于检测细长探头（12）在液体内的浸入水平。 电平检测电路包括第一组晶体管（112,114）。 这些晶体管中的一个对细长的探针充电，而第二个对电容器（60）充电。 参考电流源（54）基于由第一晶体管提供给细长探针的充电电流和额外的晶体管提供参考电流，该额外晶体管还以使得电容器和探针上的电压保持为 相同。 监视电路（62）基于由参考电流源提供的电流产生模拟电平信号。 该模拟电平信号由模拟数字电路（82）和微处理器（50）的组合转换，用于提供对应于模拟电平信号的脉冲频率调制的通信信号，该模拟电平信号又与探针浸入的长度有关 在液体内。

公开(公告)号：WO1996017193A1

公开(公告)日：1996-06-06

申请号：PCT/US1995015497

申请日：1995-11-14

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  EAKER, Garlan, Lee

IPC: F16K31/02

CPC classification number: F16K31/0651 ,  F01N3/22 ,  F01N3/222 ,  F02B37/164 ,  F16K17/06 ,  F16K31/0655 ,  Y02T10/144 ,  Y10T137/0318

Abstract: A poppet valve assembly comprising a valve housing defining a chamber and first and second spaced apart flow openings enabling flow through the chamber, a valve seat (308) surrounding one opening, a valving member (302) comprising a valving element (305) positioned for engagement with the valve seat (308), the valving element (305) movable between an open position spaced from the valve seat for enabling fluid flow through the housing and a closed position engaged with the valve seat, a solenoid assembly comprising an armature (304) movable with respect to the valving member and the valve housing, the solenoid assembly having an energized condition wherein the armature is subjected to an electromagnetic force and a de-energized condition, and, anti-adhesion structure operative to shed material bridging the valve seat and the valving member when the solenoid is energized and enable seating and unseating of the valving member. The anti-adhésion structure comprising a resilient, low friction valve seating surface (306) and a valving member shocking mechanism (310).

Abstract translation: 一种提升阀组件，其包括限定腔室的阀壳体和能够流过腔室的第一和第二间隔开的流动开口，围绕一个开口的阀座（308），阀构件（302），其包括阀元件（305） 与所述阀座（308）接合，所述阀元件（305）可在与所述阀座间隔开的打开位置之间移动以使流体流过所述壳体并且与所述阀座接合的关闭位置;螺线管组件，包括电枢（304 ）可相对于阀构件和阀壳体移动，螺线管组件具有通电状态，其中电枢受到电磁力和断电状态，以及防粘结结构，用于将材料桥接在阀座 以及当螺线管通电时的阀构件，并且能够安装和拆卸阀构件。 防结构包括弹性低摩擦阀座表面（306）和阀构件震动机构（310）。

公开(公告)号：WO1996015430A2

公开(公告)日：1996-05-23

申请号：PCT/IB1995001026

申请日：1995-10-27

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  SCHULTZ, Gilbert

IPC: G01K00/00

CPC classification number: F23N5/107 ,  Y10T137/1516

Abstract: A control device and method of making the same are provided, the control device having an axially movable shaft for moving a movable valve into its latching position with an electromagnetic unit and also being rotatable from a first position thereof to a second position thereof to cause an electrical switch to be in a closed condition thereof, the switch being a normally closed switch and being in series with the electromagnetic unit so that the electromagnetic unit cannot have an electrical current flowing therethrough unless the switch is in the closed condition thereof.

Abstract translation: 提供一种控制装置及其制造方法，所述控制装置具有可轴向移动的轴，用于利用电磁单元将可动阀移动到其锁定位置，并且还可从其第一位置转动到第二位置， 电气开关处于其闭合状态，开关是常闭开关并与电磁单元串联，使得电磁单元不能流过其中的电流，除非开关处于其闭合状态。

公开(公告)号：WO1993015363A1

公开(公告)日：1993-08-05

申请号：PCT/US1993001145

申请日：1993-01-28

Applicant: ROBERTSHAW CONTROLS COMPANY

Inventor： ROBERTSHAW CONTROLS COMPANY ,  WILLIAMS, Kurt, T.

IPC: F23Q07/00

CPC classification number: F23Q7/24 ,  F23N5/203 ,  F23N2027/42

Abstract: A heating element operating unit, control device therefor and methods of making the same are provided, the control device (26) being adapted to operate a heating element that comprises a hot surface igniter (28) with a certain repeating pattern of a single complete half-wave pulse in each repeating pattern of at least two complete full-wave pulses of a source (27) of high voltage alternating current for a predetermined time period, the control device (26) utilizing a staircase generator of two transistors (Q10, Q11) for operating the heating element.