GB1295034A - - Google Patents

Info

Publication number
GB1295034A
GB1295034A GB1295034DA GB1295034A GB 1295034 A GB1295034 A GB 1295034A GB 1295034D A GB1295034D A GB 1295034DA GB 1295034 A GB1295034 A GB 1295034A
Authority
GB
United Kingdom
Prior art keywords
arm
casing
contacts
assembly
washer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1295034A publication Critical patent/GB1295034A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/24Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/32Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/24Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26Details
    • H01H35/2607Means for adjustment of "ON" or "OFF" operating pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

1295034 Thermal switches DANFOSS AS 5 Jan 1970 [14 Feb 1969] 372/70 Heading H1N A-snap action switch comprises a main arm 17 and an omega spring 19, arm 17 being acted upon by a pressure applying means 21 and by an adjusting spring 22 arranged alongside each other and acting on arm 17 on the same side and pressing it towards a pivoting bearing 15, disposed between them on the opposite side. Means 21 is a bellows provided at its open end with a union 28. Adjusting spring 22 is mounted on a threaded bolt 29 provided at its upper end with a rotary knob 30, Fig. 1 (not shown), and provided at its lower end with a washer 32 having a pointer 14, Fig. 1, projecting through a slot 13, Fig. 1, in the casing to prevent rotation of washer 32 and also serve as an indicator. One side of omega spring 19 bears against a knife-edge bearing 20 secured to a slide 23 the printer of which can be adjusted by a cam disc displaced by spindle 24. If required, a catch 54, Fig. 5 (not shown), or 54<SP>1</SP>, Fig. 6 (not shown), can be provided each with a shoulder engaging the end of arm 17 and each moved away from arm 17 by a pushbutton 59, Fig. 5, to limit the thermostat at a low or high limiting temprature. The contact assembly 38, Figs. 3, 4 (not shown), is a one-piece unit slid in from the right behind the snap-action assembly with terminals 40 projecting to the right for access, the contacts being accommodated in a casing 39 and comprising leafspring moving contacts 46, 47, Fig. 4, on either side of a central fixed contact 45, Fig. 4, contacts 46, 47 being moved by an actuator 37, Fig. 3, secured to the left hand end of arm 17. An outer cover 10 ,Fig. 1, fits over the assembly closing the open right hand end of the casing. The switch is an evaporator thermostat.
GB1295034D 1969-02-14 1970-01-05 Expired GB1295034A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691907426 DE1907426B2 (en) 1969-02-14 1969-02-14 HEAT OR PRESSURE RELEVANT SNAP SWITCH

Publications (1)

Publication Number Publication Date
GB1295034A true GB1295034A (en) 1972-11-01

Family

ID=5725253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295034D Expired GB1295034A (en) 1969-02-14 1970-01-05

Country Status (6)

Country Link
US (1) US3636287A (en)
DE (1) DE1907426B2 (en)
DK (1) DK137414B (en)
FR (1) FR2035236A5 (en)
GB (1) GB1295034A (en)
NL (1) NL7001382A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700168A (en) * 1986-03-31 1987-10-13 Classic Corporation Integrated temperature control unit
JP3839744B2 (en) * 2002-04-19 2006-11-01 松下冷機株式会社 thermostat

Also Published As

Publication number Publication date
DE1907426B2 (en) 1971-12-23
DE1907426A1 (en) 1970-11-05
FR2035236A5 (en) 1970-12-18
NL7001382A (en) 1970-08-18
US3636287A (en) 1972-01-18
DK137414B (en) 1978-02-27
DK137414C (en) 1978-08-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees