Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1975-01-23
1976-04-13
Clay, Darrell L.
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
174 50, 174 5054, 220 4B, 220DIG25, H05K 500
Patent
active
039506037
ABSTRACT:
An enclosed modular circuit component is immobilized against deleterious movement due to high impact, shock and vibration movement. A two-piece enclosure case for securely immobilizing a wide variety of readily available modular circuit components is easy to fabricate and utilize with the components. The enclosure case comprises two halves each of which has a top and a bottom, respectively, with two oppositely disposed side walls projecting therefrom. At least one half of the case has a ledge upon which the circuit component header, such as an element support board or a printed circuit board, may be supported. The other half of the case is then provided with means to urge the board against the ledge so that when the two halves are placed together the component is sandwiched between them in a secured immobile relationship. The component elements may be maintained spaced from contact with the enclosure interior surfaces. The side walls contain interlock means which cooperate with complementary interlock means on the respective top or bottom of the other half to form a tight fitting interlock engagement. The interlock is under tension since each half has only two opposite walls which can thus be flexed. In this manner, the entire assembly unit has a continuous interlock around its periphery. Openings for the board lead pins are provided.
REFERENCES:
patent: 2144523 (1939-01-01), Brown
patent: 2329442 (1943-09-01), Popp
patent: 2924639 (1960-02-01), Zelt
patent: 3146435 (1964-08-01), Kelly
patent: 3307077 (1967-02-01), Bernstein
patent: 3391384 (1968-07-01), Hughes
patent: 3634599 (1972-01-01), Kliewer
patent: 3693410 (1972-09-01), Robrecht et al.
patent: 3829604 (1974-08-01), Tanaka et al.
Analog Devices Incorporated
Clay Darrell L.
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