Communications – electrical: acoustic wave systems and devices – Borehole testing
Patent
1985-02-04
1987-09-15
Tolin, G. P.
Communications, electrical: acoustic wave systems and devices
Borehole testing
361393, 361400, 439140, 439152, H02B 104
Patent
active
046943790
ABSTRACT:
A control panel supports and positions interchangeable subunit electronic devices and provides a neat and uniform outwardly facing surface. When subunit electronic devices are disconnected from the control panel, cover plates extend and conform to the uniform outwardly facing surface. Hinged support members "lock" in an over center position to rigidly support each cover plate. Electrical connectors protruding from each subunit electronic device "unlock" the hinged support members from the over center position when the subunit electronic device is urged toward the cover plate.
REFERENCES:
patent: 1117647 (1914-11-01), Durbin
patent: 1171914 (1916-02-01), Wright
patent: 2913634 (1959-11-01), Scoville
patent: 4039902 (1977-08-01), Lacan
patent: 4507526 (1985-03-01), Thoma
Mutton Jon C.
Unger Peter J.
Dellett John P.
Hulse Robert S.
Tektronix Inc.
Tolin G. P.
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