摘要:
A water treatment cartridge comprises a sealing surface arranged inwardly of its periphery, the sealing surface being formed, at least in part, by at least a portion of an inwardly facing, downwardly extending wall 52. The inwardly facing wall 52 may form the radially outer wall of an annular channel 50 extending around the top of the cartridge.
摘要:
A heater for heating liquid to boiling comprises a heating element (48; 106), a first heating region (18, 20; 100) heated by said heating element (48; 106) for heating liquid flowing therethrough to a temperature below boiling, and a second heating region (22; 102) for heating said liquid to boiling. The second region permits the exit of steam therefrom separately from heated water.
摘要:
An assembly for a liquid heating vessel comprises a first heater (110) for heating liquid in the vessel and a second heater (118) of lower power than the first. The assembly further comprises a control arrangement (80) including electromagnetic switching means (60) for interrupting or reducing the power to the first heater (110) and comprises a coil (60) for effecting said switching. The second heater (118) is connected electrically in series with the coil (60).
摘要:
A liquid heating appliance (102) has a relatively high power heating means for bringing liquid in the appliance to boiling and a relatively low power heating means to maintain it at boiling for a predetermined time thereafter. A first steam sensitive control (140) switches the appliance from high power to low power and a second steam sensitive control (142) switches the low power heating means off. Liquid entering the appliance may be treated by passing through a filter (116).
摘要:
A first cordless electrical connector part engages with a corresponding second cordless connector part. The first connector part comprises means (22) on the outer housing thereof for properly laterally locating the second connector part when the two are fully engaged. The locating means (22) has an outer engagement surface which is substantially parallel to the axis of the connector.
摘要:
A thick film heating element or resistance comprises a main track (4) arranged to carry electric current during normal operation and an auxiliary track portion (26a, 26b) electrically coupled to said main track (4) by a bridge (28) of glass, glass-ceramic or ceramic material such that it does not carry current during normal operation, but wherein the configuration of the auxiliary track (26a, 26b) and the bridge (28) of glass, glass-ceramic or ceramic material is chosen such that at a predetermined temperature a leakage current between the main (4) and auxiliary (26a, 26b) tracks rises to such an extent that a failure current flows through a section of the main track (4).
摘要:
A liquid heating vessel comprises main heating means 200 arranged to heat water in the vessel to boiling and thereafter to be automatically de-energized and secondary heating means 202 for maintaining water in the vessel at a temperature at or below boiling wherein the vessel comprises a single manually operable actuator 48,50;148,150 for energising said main heating means and also for de-energising said secondary heating means. The control employs leaf springs which comprise a root region 26 for mounting the spring and a narrower, free tip region 28, said spring having two stable curved positions such that it is moveable between said positions by application of a force to the concave face in the tip region or to the convex face in the root region.