Abstract: Systems and methods for coordinating and controlling vehicles, for example heavy trucks, to follow closely behind each other, or linking to form a platoon. In one aspect, on-board controllers in each vehicle interact with vehicular sensors to monitor and control, for example, gear ratios on vehicles. A front vehicle can shift a gear which, via a vehicle-to-vehicle communication link, can cause a rear vehicle to shift gears. To maintain a gap, vehicles may shift gears at various relative positions based on a grade of a road.

Abstract: A fitting or connecting corrugated tubing has a through opening and a liquid tight corrugated tubing connecting portion. The connecting portion has a shank to receive the corrugated tubing and a collar of greater diameter than the shank. The collar extends along the shank from a shoulder in the fitting and terminates before the end of the shank. Pawls in the connecting portion extend from the shank between the collar and the end of the shank. The pawls are hinged and have bevels and a bearing surface. The collar on the shank has an outside diameter slightly greater than the inside diameter of the corrugated tubing which renders the connector liquid tight when engaged with the corrugated tubing. The pawls resiliently extend to engage themselves in an inner corrugation of the corrugated tubing. Various pawl configurations engage the inside corrugations of corrugated tubing for a quick and firm liquid tight connection.

Abstract: A molded plastic strain relief bushing and method includes a body with a channel. A hinged head on the body has one portion contiguous with the channel. There is a well and key receiver at the well. Wire or cable is laid in the channel, locked into the channel in strain relief engagement. The head is then folded over the wire or cable and the strain relief bushing engaged in an aperture. The function of holding the wire or cable is separate from the function of engaging the strain relief bushing. The split head enables the functions to be separate and yet permit the laying in of the wire or cable without the awkward need to thread the wire or cable through a fixed opening in the strain relief bushing.

Abstract: A screw with an unthreaded spaced away radial flange portion on its shank may be tightened and released within a bore without falling from the bore once released. The assembly of the screw and a strain relief bushing permits the conventional strain relief bushing to optionally hold and release cable without risking the loss of the retaining screw from the bushing.

Abstract: A one piece molded plastic strain relief bushing includes a well and key. The portions of the bushing may be engaged, latched in the well. The latching within the well serves the double function of holding the bushing with a cable engaged and compactly providing such holding with a maximum of strength and a minimum of bulk. The bushing enables saving of cost in the insertion of the cable into the bushing and saving cost, inserting the bushing with the cable into an aperture.

Abstract: A liquid tight connector accepts a non-metallic conduit grasped by fingers on a clip grasping above an annular ring on a ferrule. A compression nut engages the fingers. The configuration enables labor saving insertion and effective liquid tight integrity in an inexpensive device.

Abstract: A raintight and oiltight connector is disclosed for securing an electrical conduit for an electrical enclosure. The connector includes first and second housing members which are rotatably attached and supports the conduit at one end and can be screw inserted into a threaded opening of an electrical enclosure at the other end.

Abstract: An environmentally sealed cable connector for terminating wire jacketed cable. The connector includes a body for receiving the cable and a gland nut for securing the cable to the body. A clamping member places the wire jacket in grounding connection with the connector upon securment of the gland nut to the body. The urging means further provides a seal between the body and the cable, preventing hazardous gases from passing therebetween.

Abstract: A snap-on liquid-tight connector for mechanically and electrically connecting a flexible metallic conduit to an electrical enclosure. The connector is screw-threaded at the conduit receiving end for electrical contact thereto and for secure, liquid-tight engagement. The opposite end of the connector is snapped into the knock-out of an electrical enclosure. The insertion end of the connector provides both electrical and mechanical connection between the connector and the electrical enclosure.

Abstract: A liquid-tight connector for joining a jacketed flexible metal clad cable to an electrical enclosure with a continuous ground path between the cladding and the enclosure. To a standard body-gland nut arrangement is added a sealing ring and a grounding ring effectively operated to grip the cable jacket and metal cladding respectively as the gland nut is tightened upon the body. Reduction of the sealing ring bore to cause the ring to grip the cable jacket is accomplished by an undercut in the ring wall and a dual outer diameter arrangement which deforms the sealing ring as its enlarged portion is forced into the body bore and as the ring is compressed between the gland nut and stops on the grounding ring. The sealing ring further operates the grounding ring whose upstanding arms are moved and deformed into intimate contact with the metal cladding of the cable. Supports on the arms assure proper displacement of the arms while stops insure proper compression of the sealing ring.

Abstract: A modular feed regulating stitch length and reverse feed selector, and a modular assembly including feed regulating control linkages and a plastic support therefor are provided for use in a sewing machine. Each module is readily assembled apart from the machine and may thereafter be affixed for cooperative interrelationship in the machine bed.

Abstract: A hinge for the lid contained on the arm top cover of a sewing machine which comprises a pair of cam shaped pivot pins molded into the arm top cover and a pair of saddles molded into the lid and adapted to receive the pivot pins. A plastic spring havng a pivot pin embracing tab at each end is removably fastened to the lid. The plastic spring imparts a "snapping" action to restrain the lid in an open or closed position.