Allen-bradley Company, LLC

Thomas G Karakis

Gary C Fillus

Roger E Karweik

Clayton J Klotz

Robert G Crepeau

A switch operator, such as a manual push button, mounts a latch onto which are mounted up to four cartridges. A pair of laterally opposed arms of the latch receive each cartridge between them, and lock the cartridge to the latch. Each cartridge has four lips, two for each arm, which engage a pair of spaced apart locking surfaces on each arm. Each arm fits between the two lips it engages, and each cartridge has a pair of feet which fit into a pair of pockets in the latch. A contact cartridge has a follower, and the follower and feet are both positioned to one side of the cartridge, and the feet cooperate with the pockets to insure proper orientation of the cartridge in its position on the latch.

Operator/cartridge assembly

A rotatable cam limit switch with a switch operating cam mounted directly on a continuously rotating drive shaft and axially shiftable relative to the shaft. The drive shaft is also provided with a 'fast thread' for adjustable axial positioning of a timing element in slidable engagement with the cam. Manual axially adjustable yoke elements respectively engage the cam and timing element for establishing preselected switch dwell time and phase relationship between said switch and said shaft.

Rotatable cam limit switch with variable timing and dwell

A prewired electrical switch having an attached electrical cable includes a housing which provides a cable seal which prevents fluid from traveling by capillary action from outside the housing through the electrical cable into the interior of the switch housing where the fluid can interfere with the normal operation of the switch. The cable seal is provided by a separate cable receiving section of the housing which has pockets which receive and isolate uninsulated portions of the individual electrical conductors of the cable. A non-conductive potting compound such as an epoxy resin fills the pockets and forms fluid-tight seals with the uninsulated portions of the individual conductors and adjacent insulated portions within the pocket. The potting compound also forms a fluid-tight seal with the end of the cable.

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Greendale, WI, United States of America

Thomas G Karakis