Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
225 words
Apparatus for controlling and programming the energization of the guns of a welding device, comprising (a) main control means (32), including (1) keyboard means (11) for programming the successive steps of a welding sequence; and (2) an alphanumerical display unit (22) for displaying communication messages between said control means and the operator thereof; (b) programming means for delivering control signals to said main control means, said control signals corresponding to the welding program sequence provided by the operator via said keyboard means, said programming means including (1) program memory means (30) for storing a welding sequence program; and (2) microprocessor means (23) for processing signals for execution of the welding program; (c) input/output means (25) connected with said microprocessor means; (d) electrical supply means (26) providing power to said microprocessor means; (e) program storage means (24) connected with said microprocessor means for providing signals indicating the operational state of said control means; (f) second memory means (31) for storing the welding programs formulated between said main control means and said programming means, said microprocessor means processing signals from said program memory means, said input/output means, and said program storage means to control the firing angle of the static switches of the guns of the welding device as a function of the voltage across the primary of the welding transformer, thereby to maintain the energy constant.
Claim 2
Dependent Claim
225 words
Apparatus for controlling and programming the energization of the guns of a welding device, comprising (a) main control means (32), including (1) keyboard means (11) for programming the successive steps of a welding sequence; and (2) an alphanumerical display unit (22) for displaying communication messages between said control means and the operator thereof; (b) programming means for delivering control signals to said main control means, said control signals corresponding to the welding program sequence provided by the operator via said keyboard means, said programming means including (1) program memory means (30) for storing a welding sequence program; and (2) microprocessor means (23) for processing signals for execution of the welding program; (c) input/output means (25) connected with said microprocessor means; (d) electrical supply means (26) providing power to said microprocessor means; (e) program storage means (24) connected with said microprocessor means for providing signals indicating the operational state of said control means; (f) second memory means (31) for storing the welding programs formulated between said main control means and said programming means, said microprocessor means processing signals from said program memory means, said input/output means, and said program storage means to control the firing angle of the static switches of the guns of the welding device as a function of the voltage across the primary of the welding transformer, thereby to maintain the energy constant.
Claim 3
Dependent Claim
77 words
Apparatus as defined in claim 1, and further comprising an arithmetic logic unit (27) connected with said microprocessor means and with said input/output means, said arithmetic logic unit sensing the instantaneous welding current, voltage, and power of the welding device for varying the firing angle of the static switches of the welding guns, for varying the number of welding cycles, for monitoring the operation of the welding guns, and for controlling the duration of the welding cycles.
Claim 4
Dependent Claim
37 words
Apparatus as defined in claim 1, and further comprising interface means (28) connected with said microprocessor means and said input/output means for exchanging signals therebetween, said interface means affording serial connection to a computer and printing device.