GB1238338A - - Google Patents
Info
- Publication number
- GB1238338A GB1238338A GB1238338DA GB1238338A GB 1238338 A GB1238338 A GB 1238338A GB 1238338D A GB1238338D A GB 1238338DA GB 1238338 A GB1238338 A GB 1238338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- spring
- switch
- switches
- operated switch
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
1,238,338. Switches in washing machines. PATINVEST PATENT-UND INVESTMENT A.G. 10 Sept., 1968 [15 Sept., 1967], No. 42966/68. Heading D1A. [Also in Division H1] A washing machine is provided with a switch unit comprising a casing enclosing two switches for controlling the operation of different elements of the machine. One of the switches is controlled electromagnetically in response to the temperature of liquid in the machine and the other is controlled by the hydrostatic pressure of the liquid. In the construction shown there is one electrically operated switch with a fluid-pressure operated switch on each side, within a common housing, see Fig. 1 (not shown). The electrically operated switch, Fig. 2 comprises a fixed contact 6 and a moving contact 9 on a downwardly biassed spring blade. An electromagnet 10 has a pivoted armature 15 having its free end linked with the spring blade by a pin 19. Fixed contact 6 may alternatively be above scoring contact 9, as shown in dotted lines. Each fluid-pressure operated switch, Fig. 4, comprises an inlet tube 24 and a diaphragm 23 controlling a lever 27 by means of a tappet 26, against the action of an adjusting spring 28, so as to snap over contact spring 31 by means of compression spring 35, connected between arm 37 and switch blade 31. Contact spring 31 carries contact 32 between fixed contact 33 and adjustable contact 34. The electromagnetically actuated switch may be operated by a thermistor through an amplifier. (For Figures see next column)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP0043003 | 1967-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1238338A true GB1238338A (en) | 1971-07-07 |
Family
ID=7379090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1238338D Expired GB1238338A (en) | 1967-09-15 | 1968-09-10 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3549838A (en) |
| DE (1) | DE1665383A1 (en) |
| FR (1) | FR1581293A (en) |
| GB (1) | GB1238338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2439390A1 (en) * | 1978-10-17 | 1980-05-16 | Lucas Industries Ltd | DEVICES FOR INDICATING THE LEVEL OF A FLUID |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867594A (en) * | 1973-11-29 | 1975-02-18 | Texas Instruments Inc | Pressure sensitive switch with diaphragm and dish contact means |
| US3984650A (en) * | 1974-07-18 | 1976-10-05 | General Electric Company | Fluid pressure diaphragm switch having plural adjustment mechanisms |
| DE3430414A1 (en) * | 1984-08-18 | 1986-02-27 | Ellenberger & Poensgen Gmbh, 8503 Altdorf | DOOR LOCKING DEVICE WITH IMMEDIATE LOCKING AND DELAYED UNLOCKING WITH WATER LEVEL MONITORING |
| SI22866A (en) * | 2008-09-03 | 2010-03-31 | ITW@METALFLEX@@d@o@o@@Tolmin | Safety door lock of household appliance, preferably washing machine |
| ITTO20090624A1 (en) | 2009-08-07 | 2011-02-08 | Illinois Tool Works | PRESSURE SENSOR FOR APPLIANCES WITH ADDITIONAL SAFETY FUNCTION |
| DE102009037798A1 (en) * | 2009-08-18 | 2011-02-24 | Bircher Reglomat Ag | Pneumatic switch |
-
1967
- 1967-09-15 DE DE19671665383 patent/DE1665383A1/en active Pending
-
1968
- 1968-08-08 US US751128A patent/US3549838A/en not_active Expired - Lifetime
- 1968-09-06 FR FR1581293D patent/FR1581293A/fr not_active Expired
- 1968-09-10 GB GB1238338D patent/GB1238338A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2439390A1 (en) * | 1978-10-17 | 1980-05-16 | Lucas Industries Ltd | DEVICES FOR INDICATING THE LEVEL OF A FLUID |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1665383A1 (en) | 1970-12-10 |
| US3549838A (en) | 1970-12-22 |
| FR1581293A (en) | 1969-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |