Microcomputer fuel burner control having safety interlock means

Details Microcomputer fuel burner control having safety interlock means Microcomputer fuel burner control having safety interlock means

1988-01-21

1989-05-30

Smith, Jerry

Boots, shoes, and leggings

364187, 371 16, 371 18, 371 21, 431 18, 431 24, 431 66, 307328, G05B 902, F23N 524, F23Q 908

Patent

active

048356700

ABSTRACT:
A microcomputer control utilizes a nonvolatile memory with an interlock. The interlock functions upon the removal of the microcomputer control from a base or from a mounting surface, and its reinstallation. The removal and reinstallation deletes memory and requires reprogramming. This prevents the removal of a microcomputer control that is protected by battery backup without reprogramming the memory. This safety function is particularly useful in flame safeguard or burner control equipment where the interchange of microcomputer fuel burner controls without reprogramming for the particular burner could create a hazard.

REFERENCES:
patent: 4035135 (1977-07-01), Jacobsz
patent: 4101258 (1978-07-01), Jacobsz
patent: 4267965 (1981-05-01), Everett
patent: 4348169 (1982-09-01), Swithenbank et al.
patent: 4686356 (1987-08-01), Ueda et al.

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