Interchangeable test head for loaded test member

Details Interchangeable test head for loaded test member Interchangeable test head for loaded test member

1978-06-12

1980-06-24

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 73PC, 324158P, 339117P, G01R 3102, H01R 304

Patent

active

042097452

ABSTRACT:
An interchangeable test head for a vacuum fixture for testing a loaded planar test member. The test head includes support means comprising a planar support surface. A platform is in opposed relation to the planar support surface and has a planar test member surface. Resilient seal means is affixed to the platform and is flared outwardly around the perimeter of the platform to a free edge which engages and forms a vacuum seal with the planar support surface thereby providing a vacuum chamber between the platform and the support means. Stop means limits the deactuated position of the platform so that the entire free edge of the seal means remains in engagement with the planar support surface. Vacuum in the chamber causes the platform to move along the path from the deactuated position to the actuated position. A plurality of spaced spring probes is mounted on the support means. A plurality of openings is provided through the platform for drawing a test member against the spring probes.

REFERENCES:
patent: 3016489 (1962-01-01), Briggs et al.
patent: 3493858 (1970-02-01), Baron et al.
patent: 3596228 (1971-07-01), Reed, Jr. et al.
patent: 3654585 (1972-04-01), Wickersham
patent: 3757219 (1973-09-01), Aksu
patent: 3942778 (1976-03-01), Fadiga et al.
patent: 4017793 (1977-04-01), Haines
patent: 4138186 (1979-02-01), Long et al.
Drawing No. PFU-3000; "Vacuum Fixture;" Pylon Co. Inc., Attleboro, Mass.; 10-1977.

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