Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1997-11-26
1999-11-23
Moise, Emmanuel L.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361748, 710102, 439630, H05K 114, H05K 100, H01R 2370
Patent
active
059911581
ABSTRACT:
A switch is disclosed for indicating that a computer card is installed in an expansion slot of a computer. A conductive strip attaches to an end wall of the slot and deforms when a computer card is installed. A conductive contact is provided in the wall of the slot to complete an electrical connection when the conductive strip is deformed. The strip connects electrically to a conductor that is passively driven high by a voltage source and pull-up resistor. The contact connects electrically to ground, so that when the computer card causes the strip to touch the contact, the voltage on conductor is driven low, providing an indication to associated circuitry that a card is present in the slot. A pair of switches may be used to provide repetitive signals indicating a card is present. If only one switch is closed, the computer may indicate to the user that a card has been installed improperly, or contaminants are present in the slot.
REFERENCES:
patent: 3795888 (1974-03-01), Nardo et al.
patent: 3878344 (1975-04-01), Lockard
patent: 4106841 (1978-08-01), Vladic
patent: 4480884 (1984-11-01), Babuka et al.
patent: 4553192 (1985-11-01), Babuka et al.
patent: 4675769 (1987-06-01), Marshall et al.
patent: 4744006 (1988-05-01), Duffield
patent: 4858162 (1989-08-01), Kieffer et al.
patent: 4891023 (1990-01-01), Lopata
patent: 5055061 (1991-10-01), Lichtenwalter
patent: 5116237 (1992-05-01), Loewen
patent: 5162675 (1992-11-01), Olsen et al.
patent: 5202551 (1993-04-01), Parrer et al.
patent: 5207598 (1993-05-01), Yamada et al.
patent: 5308248 (1994-05-01), Davidge et al.
patent: 5427534 (1995-06-01), Spickler et al.
patent: 5501608 (1996-03-01), Scheer et al.
patent: 5525795 (1996-06-01), MacGregor et al.
patent: 5544006 (1996-08-01), Radloff et al.
patent: 5568610 (1996-10-01), Brown
patent: 5586270 (1996-12-01), Rotier et al.
patent: 5612634 (1997-03-01), MacKenna
patent: 5636347 (1997-06-01), Muchnick et al.
Chan Richard
Hayes Stuart
Dell USA L.P.
Holloway William W.
Moise Emmanuel L.
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