초록 ▼

A shower temperature control system includes a single mixing valve connected between hot and cold sources of water and a shower head, a gear motor with a shaft connected to the mixing valve, a water temperature sensor positioned in the shower plumbing, a numeric keypad for numeric entry of desired s

A shower temperature control system includes a single mixing valve connected between hot and cold sources of water and a shower head, a gear motor with a shaft connected to the mixing valve, a water temperature sensor positioned in the shower plumbing, a numeric keypad for numeric entry of desired shower water temperature, a potentiometer for alternate entry of desired shower temperature, and a controller which derives a motor drive signal from a difference between the sensed temperature and the set temperature. Initially, and when no temperature has been set, the controller maintains a safe default water temperature, such as 98°F. The controller incorporates memory for the storage of a plurality of preset shower water temperatures which may be selected by selection keys on the keypad.

대표청구항 ▼

A shower water temperature control system for use with hot and cold water sources to control the temperature of water exiting a shower head comprising: (a) hot/cold mixing valve means connected between hot and cold water sources and a shower head, said mixing valve including a mixing valve operator

A shower water temperature control system for use with hot and cold water sources to control the temperature of water exiting a shower head comprising: (a) hot/cold mixing valve means connected between hot and cold water sources and a shower head, said mixing valve including a mixing valve operator positionable to control the proportions of hot and cold water transferred from said hot and cold water sources to said shower head to thereby vary the temperature of water existing therefrom; (b) motor means drivingly connected to said mixing valve operator and operable to position same; (c) water temperature sensor means positioned to sense the temperature of water exiting said shower head; (d) water temperature set means operable to set a desired shower water temperature; (e) shower temperature control means having said motor means, said sensor, and said set means interconnected therewith, said control means initially controlling said motor means to position said mixing valve to cause the maintenance of a selected safe default temperature; (f) upon the operation of said temperature set means, said control means comparing a sensed temperature sensed by said sensor means with a set temperature set by said set means and controlling said motor means to position said mixing valve means such that said sensed temperature equals said set temperature; (g) said water temperature set means including: (1) a numeric keypad having numeric keys thereon; and (2) a keypad encoder connecting said keypad to said shower temperature control means, generating numerically coded key signals upon the operation of said numeric keys, and applying said key signals to said control means which are interpreted by said control means as the setting of said set temperature; (h) said control means including memory means to store a plurality of numeric values respectively representing stored set temperatures; (i) said keypad including a memory set key which, upon being operated, causes a set temperature entered by operation of said numeric keys to be stored in said memory means; and (j) said keypad including a plurality of memory selection keys corresponding to said stored set temperatures, the operation of one of said memory selection keys causing said control means to maintain a set temperature equal to a stored set temperature corresponding to said one of said memory selection keys.