Abstract: A micro-switch monitored, single-pole connector is disclosed. The micro-switch is mounted to the body of the connector. The micro-switch plunger and the end of an actuating member are enclosed in a sealed chamber, thus protecting these components from debris. The connector may be a panel-mounted model or a cable-to-cable model. A standard type connection, such as a buss bar connection, is provided at the axial end of the connector.

Abstract: A high-power, shielded, single-pole electrical connector and method for installing such a connector are disclosed. The connector has a single-pole connector housed within an electrically conductive outer shell. The inner, single-pole connector is electrically insulated from the outer shell. A shielding trap is used to provide electrical contact between the outer shell of the connector and a shielding layer of a shielded electrical supply cable. The inner, single-pole connector may be a male-female type or a lug-type. If a lug-type single-pole connector is used, a dual-shell, cylindrical insulator may be used to provide access to the lug bolts. Such an insulator may be realigned after the lug-bolt access is no longer required so that a complete insulating barrier is provided around the lug-type connector. A variable-angle, lug-type connector may be used.

Abstract: An improved single-pole, male, electrical connector for use in industrial applications involving very high currents (e.g., in excess of 1,000 amps) and a method for making and adjusting the connector are disclosed. The connector has a male pin with a slot along most of its length and an adjustment mechanism that is used to vary the width of the slot. By varying the width of the slot, the effective diameter of the pin is changed. The male connector must fit tightly in a female connector, and the adjustment is used to obtain the required fit. In the disclosed invention, the adjustment mechanism is positioned near a tip of the pin and under an insulating safety cap. The adjustment mechanism is configured for adjustment prior to installation of the safety cap.

Abstract: An improved single-pole electrical connector is disclosed. The connector has a base electrical connection at one end and a pin-and-collet type electrical connection at the other end. A nonconductive mounting base is used to attach the connector to an electrical distribution panel. An electrical cable (e.g., an electrical supply line) is connected to the base electrical connection. Another electrical cable (e.g., from an electrical load) is connected to a pin, which is inserted into the collet. A collet nut is tightened to provide a secure electrical and mechanical connection between the pin and collet. The nonconductive mounting base provides a secure attachment to the distribution panel and insulates the electrically conductive parts of the connector from the panel. An insulating boot may be used to cover the pin and collet side of the connector in use.

Abstract: A muffler system for a compressor includes an expansion chamber muffler for reducing pressure pulses at the compressor's fundamental pulsation frequency and a side-branch muffler for filtering high-frequency pressure pulses. The expansion muffler is positioned along the compressor discharge stream at a location that maximizes pulsation reduction at the compressor's fundamental pulsation frequency. The side-branch muffler is tuned to the frequency at which the pulsation reduction for the expansion muffler is at a minimum.

Abstract: A hermetic compressor unit housing comprised of a shell having a top section and a bottom section which receives the top section, the shell being formed of sheet metal and having generally cylindrical sidewalls wherein the sidewall taken in a generally axial direction is substantially straight, each shell section having an opening, a substantially cylindrical portion, and a closed end portion, the opening having a substantially circular horizontal cross-sectional geometry defined by a major axis and a minor axis, the horizontal cross-sectional geometry including substantially liner opposing sidewall portions preferably disposed adjacent to the intersection of the horizontal sectional geometry with the minor axis, and methods of aligning the shell sections for installation of fixtures and mating of the shell sections.

Abstract: A single piece offset mounting foot is positioned between the compressor and the floor of a cabinet for the compressor. The offset mounting foot has a main body having a geometric shape with a top and bottom surface connected by sidewalls that form a perimeter. A depression in the top surface receives a compressor and is offset in the direction of one of the sidewalls. A plurality of substantially equally spaced legs extend outward from the main body. The thickness of the offset mounting foot may be substantially uniform through the main body. The profile of the top surface in the main body is substantially concave forming a bowl-like surface that transitions smoothly from a minimum within the concave surface or concavity to a maximum in the direction toward the periphery and in the direction away from the center of the concavity. The bottom surface of the main body is configured or profiled to contact the floor or base of the cabinet into which the compressor is to be installed.

Abstract: A tool for assisting in determining the locations of disc gates relative to a tailpiece in a combination lock includes a block mounted on a safe handle, a shaft extending from the block, a first pointer extending from the block along the shaft and a second pointer extending from the block perpendicular to the first pointer and across the safe door. The shaft is manually deflectable relative to the first pointer as torque is applied to the safe handle, the amount of torque being visible from the relative positions of the first pointer and an indicator plate on the shaft. Movement of the second pointer is determined by marking the safe door adjacent that pointer, which movement indicates the location of a gate relative to the tailpiece coupled to the safe handle.