Bernard C Rickmann

40307948, Jun 21, 1977

Aug 25, 1975

5/607386

Gustave Rozenboom - Kokomo IN
Bernard C. Rickmann - Peru IN

Square D Company - Park Ridge IL

H01R 922

339 22B

A bus bar, for electrical switchboards comprises an elongated extruded imperforate metal bar of rectangular cross section having slots, with parallel side walls, extending the entire length thereof. Some of the slots are of T-shape cross section, each with the T-leg portion opening through a face of the bar. Others of the slots are rectangular grooves of generally uniform width, with smaller V-shaped grooves on opposite sides to accommodate threaded end portions of bolts or screws, and each opens through a face of the bar. T-bolts are arranged with their heads in, and slidable along, the full length of selected ones of said T-slots, respectively, to any desired position. The bolts have threaded stems, each of which extends from its associated head through the leg portion of the T-slot in which its head is disposed, and beyond that face of the bar through which the associated T-slot opens. Each stem is adapted to threadably receive a nut for clamping supporting or connecting brackets to the bar. Mounting bolts are threadedly receivable between the grooved side walls of the "threaded" slots.

45311749, Jul 23, 1985

May 24, 1984

6/613478

Bernard C. Rickmann - Peru IN

Square D Company - Palatine IL

H02B 1112

361339

An improved draw-out circuit breaker assembly for use in a switchboard with means for automatically tripping the breaker upon removal of the breaker from a fully engaged position within the switchboard and maintaining the breaker in the "TRIP" position until the terminal connectors of the breaker are separated by a predetermined distance from respectively associated connectors of the switchboard. A cam operated pivotable arm is connected to a push-to-trip button of the breaker and is biased to a first position. A cam link having an edge portion engaged with the arm and also including a cam surface is biased in a first position by the arm. A barrier surface is mounted within the switchboard to deflect the cam surface and move the link to a second position which in turn moves the pivotable arm against the bias to a second position, moving the push-to-trip button to its tripping position, which effects tripping of the circuit breaker. Each terminal connector of the breaker includes a top surface and a bottom surface which have a recessed channel area in which is secured a retaining clip having a leg extending along the longitudinal axis of a helical coil. Each channel includes a ridge portion extending perpendicular to the leg at opposite ends of the leg, with a portion of each ridge being crimped to retain the clip within the channel.

44918968, Jan 1, 1985

Oct 27, 1981

6/315566

Bernard C. Rickmann - Peru IN

Square D Company - Palatine IL

H02B 1112

361339

An improved draw-out circuit breaker assembly for use in a switchboard with means for automatically tripping the breaker upon removal of the breaker from a fully engaged position within the switchboard and maintaining the breaker in the "TRIP" position until the terminal connectors of the breaker are separated by a predetermined distance from respectively associated connectors of the switchboard. A cam operated pivotable arm is connected to a push-to-trip button of the breaker and is biased to a first position. A cam link having an edge portion engaged with the arm and also including a cam surface is biased in a first position by the arm. A barrier surface is mounted within the switchboard to deflect the cam surface and move the link to a second position which in turn moves the pivotable arm against the bias to a second position, moving the push-to-trip button to its tripping position, which effects tripping of the circuit breaker. Each terminal connector of the breaker includes a top surface and a bottom surface which have a recessed channel area in which is secured a retaining clip having a leg extending along the longitudinal axis of a helical coil. Each channel includes a ridge portion extending perpendicular to the leg at opposite ends of the leg, with a portion of each ridge being crimped to retain the clip within the channel.

44005997, Aug 23, 1983

Oct 30, 1981

6/316618

Bernard C. Rickmann - Peru IN

Square D Company - Palatine IL

H01H 926

200 50C

An interlock assembly for preventing two electrical control devices from simultaneously assuming a closed or "ON" position. The assembly comprises two subassemblies which are operably connected by a push/pull flexible cable. Each subassembly includes a frame member which carries a reciprocally movable plunger unit. A stop link is pivotally connected to the plunger unit at one end and carries a guide rod at its opposite end. The guide rod is retained within a guideway formed in the frame member which has a main longitudinally extending portion and an offset portion. The plunger unit is prevented from reciprocal movement to a depressed position when the guide rod is in the offset portion whereas reciprocal movement of the plunger unit to a depressed position is permitted when the guide rod is in the main portion of the guideway. The cable connects the respective guide rods in a manner which prevents both rods from being positioned in the main portion of the respective guideways, whereby only one plunger unit is able to assume a depressed position at any given time.