Solid state touch control hand set circuit

Claim 2

A solid state control circuit comprising: a. means for providing a direct current power supply; b. oscillator means connected to said direct current power supply for generating a high frequency signal; c. at least a pair of control channel means connected in circuit relationship with said oscillator means to receive said high frequency signal therefrom, said pair of control channel means each capable of sElectively providing an output signal therefrom; d. each of said pair of control channel means including first and second semiconductor switching means connected in circuit relationship, said first and said second semiconductor switching means of each of said pair of control channel means having a first condition and a second condition wherein when said first semiconductor switching means of one of said pair of control channel means is in said first condition said second semiconductor switching means of said one of said pair of control channel means is in said second condition and when said first semiconductor switching means of said one of said pair of control channel means is in said second condition said second semiconductor switching means of said one of said pair of control channel means is in said first condition; e. each of said pair of control channel means further including manual switch means connected in circuit relationship with said first and said second semiconductor switching means of the corresponding one of said pair of control channel means such that when said manual switch means of one of said pair of control channel means is actuated said first semi-conductor switching of said one of said pair of control channel means is caused to change from said first condition to said second condition thereby causing said second semiconductor switching means of said one of said pair of control channel means to change from said second condition to said first condition to thereby cause an output signal to be provided from said one of said pair of control channel means; and f. means connected in circuit relationship with said control channel means for preventing other output signals from the remaining of said control channel means from being simultaneously generated with the output signal from said one of said control channel means.

Claim 3

A solid state control circuit as set forth in claim 1 wherein: a. said oscillator means comprises a Colpitt circuit transistor oscillator for generating a continuous high frequency signal; b. said first condition comprises the ON condition of said first and second semiconductor switching means of each of said pair of control channel means; and c. said second condition comprises the OFF condition of said first and said second semiconductor switching means of each of said pair of control channel means.

Claim 4

A solid state control circuit as set forth in claim 1 wherein: a. said first semiconductor switching means of each of said pair of control channel means includes a first transistor having a base, a collector and an emitter; b. said second semiconductor switching means of each of said pair of control channel means includes a second transistor having a base, a collector and an emitter; c. said emitter of said first transistor is coupled in circuit relationship to said emitter of said second transistor; and d. said collector of said first transistor is connected in circuit relationship to said base of said second transistor.

Claim 5

A solid state control circuit as set forth in claim 3 wherein: a. said manual switch means of the corresponding one of said pair of control channel means is connected in circuit relationship to said base of said first transistor; b. said output signal is provided from said collector of said second transistor; and c. said preventing means is connected in circuit relationship to said collector of said first transistor of said first semiconductor switching means of each of said pair of control channel means.

Claim 6

A solid state control circuit as set forth in claim 4 wherein said preventing means comprises an inhibit logic circuit.

Claim 7

A solid state control circuit as set forth in claim 1 further comprising: a. lamp means connected in circuit relationship to said collector of a corresponding one of said second transistors of said plurality of control channels, said lamp means being energized in response to an output signal being provided From said corresponding one of said second transistors.

Claim 8

A solid state touch sensitive hospital bed control handset for selectively providing a pilot signal to initiate operation of a corresponding one of a plurality of power motors for making desired adjustments to a hospital bed, comprising: a. a plurality of control channels corresponding in number to at least the number of bed adjustment functions desired to be controlled, each of said plurality of control channels being capable of selectively providing a pilot signal therefrom, said plurality of control channels each including a first transistor, a second transistor, and a touch sensitive switch means; b. said first transistor having a first condition and a second condition and including a base, a collector and an emitter, said second transistor having a first condition and a second condition and including a base, a collector and an emitter, said emitter of said first transistor being coupled to said emitter of said second transistor and said collector of said first transistor being connected to said base of said second transistor to connect said first transistor in circuit relationship with said second transistor such that when said first transistor is in said first condition said second transistor is in said second condition and when said first transistor is in said second condition said second transistor is in said first condition; c. oscillator means for generating a high frequency signal, said oscillator means being connected to said base of said first transistor for providing thereto said high frequency signal to cause said first transistor to be in said first condition and said second transistor to be in said second condition; d. said touch sensitive switch means being connected in circuit relationship with said first transistor and said second transistor, said touch sensitive switch means being actuatable to cause interruption of the application of said high frequency signal from said oscillator means to said first transistor to cause said first transistor to move to said second condition thereby causing said second transistor to move to said first condition to thereby generate a pilot signal from one of said plurality of control channels; and e. inhibit means for preventing other pilot signals from the remainder of said plurality of control channels from being generated while the pilot signal from said one of said plurality of said control channels is still being generated, said inhibit means comprising an inhibit logic circuit connected in circuit relationship from said collector of the second transistor of each one of said control channels to said collector of said first transistor of each of the remainder of said control channels.

Claim 9

A solid state touch sensitive hospital bed control handset for selectively providing a pilot signal to initiate operation of a corresponding one of a plurality of power motors for making desired adjustments to a hospital bed, comprising: a. a plurality of control channels corresponding in number to at least the number of bed adjustment functions desired to be controlled, each of said plurality of control channels being capable of selectively providing a pilot signal therefrom, said plurality of control channels each including a first transistor, a second transistor, and a touch sensitive switch means; b. said first transistor having a first condition and a second condition and including a base, a collector and an emitter, said second transistor having a first condition and a second condition and including a base, a collector and an emitter, said emitter of said first transistor being coupled to said emitter of said second transistor and said collector of said first transistor being connected to said base of said second transistor to connect said first transistor in circuit relationship with said second transistor such that when said first transistor is in said first condition said second transistor is in said second condition and when said first transistor is in said second condition said second transistor is in said first condition; c. oscillator means for generating a high frequency signal, said oscillator means being connected to said base of said first transistor for providing thereto said high frequency signal to cause said first transistor to be in said first condition and said second transistor to be in said second condition; d. said touch sensitive switch means being connected in circuit relationship with said first transistor and said second transistor, said touch sensitive switch means being actuatable to cause interruption of the application of said high frequency signal from said oscillator means to said first transistor to cause said first transistor to move to said second condition thereby causing said second transistor to move to said first condition to thereby generate a pilot signal from one of said plurality of control channels; and e. inhibit means for preventing other pilot signals from the remainder of said plurality of control channels from being generated while the pilot signal from said one of said plurality of said control channels is still being generated, said inhibit means comprising an inhibit logic circuit connected in circuit relationship from said collector of the second transistor of each one of said control channels to said collector of said first transistor of each of the remainder of said control channels.

Claim 10

A solid state touch sensitive control circuit as set forth in claim 7 wherein: a. said oscillator means comprises a Colpitt circuit transistor oscillator for generating a continuous high frequency signal; b. said first condition comprises the ON condition of said first and second transistors; and c. said second condition comprises the OFF condition of said first and second transistors.