Abstract: An industrial lamp fixture employing a high intensity lamp and suitable for use in a hazardous location or atmosphere includes a system for replacing the lamp without having to disassemble the front framework which protects the glass lens and prevents it from breaking or cracking. The fixture includes a shell having a boss extending from the shell along the direction of an elongated lampholder when placed in the operating position. The lampholder is easily removed through the boss, by hand, thereby permitting and facilitating lamp replacement without disassembly of the protective grid or lens. A tongue-in-groove arrangement both aligns the lampholder to insure proper forward orientation of the lamp in use, and fixes the position of the lamp laterally relative to the shell.

Abstract: An industrial lamp fixture employing a high intensity lamp and suitable for use in a hazardous location or atmosphere includes a system for replacing the lamp without having to disassemble the front framework which protects the glass lens and prevents it from breaking or cracking. The fixture includes a shell having a boss extending from the shell along the direction of an elongated lampholder when placed in the operating position. The lampholder is easily removed through the boss, by hand, thereby permitting and facilitating lamp replacement without disassembly of the protective grid or lens. A tongue-in-groove arrangement both aligns the lampholder to insure proper forward orientation of the lamp in use, and fixes the position of the lamp laterally relative to the shell.

Abstract: A switch (10) for controlling flow of electric current includes a base (12) and a carrier (100) supported for movement on the base. An engagement surface (60, 80) disposed on the base (12) includes a ramp surface (66, 86) and a detent surface (64, 84) defining an opening (62, 82) disposed adjacent to the ramp surface. A detent member (130, 132) on the carrier (100) is engageable with the detent surface (64, 84) when in the detent opening (62, 82) and is engageable with the ramp surface (64, 84) when not in the detent opening. The switch (10) has a start condition in which the detent member (130, 132) is disposed in the detent opening (62, 82) and resists movement of the carrier (100) relative to the base (12). The switch (10) is movable under an actuation force from the start condition to an actuated condition in which the detent member (130, 132) is disposed on the ramp surface (66, 86). The switch (10) returns to the start condition in response to the release of the actuation force.

Abstract: A vehicle door (22) has a window (24) capable of being opened and closed. A master power window switch assembly (26) is mountable in an arm rest (28) of the door (22) near a driver of the vehicle. A polyswitch resettable fuse (56) is connected to a printed circuit board (50) of a master power window switch assembly (26) through a jumper terminal (58). An electrically conductive trace (52) is electrically connected to the jumper terminal (58). The polyswitch resettable fuse (56) may be used to limit current in the conductive trace (52) on the circuit board (50). Locating the polyswitch resettable fuse (56) between the power source (40) and the circuit board (50) permits design of the conductive traces (52), (53) and the circuit board electrical components for normal operating currents instead of significantly larger foreseeable motor stall current levels.