Walter W. Bachle - Harwinton CT Jeffrey R. Edgerly - Plainville CT
Assignee:
General LLC - Farmington CT
International Classification:
H02G 318
US Classification:
174151
Abstract:
A connector for armored electrical cable apparatus which includes a body having a central bore. The body has a generally cup shaped seat disposed in generally aligned relationship to the bore and the body has external threads disposed on the external surface thereof. A dual finger member which is generally cylindrical and has a first plurality of axially extending fingers disposed about the circumferential extent of the generally cylindrical member and a second plurality of axially extending fingers disposed about the circumferential extent of the generally cylindrical member. The free ends of all of the first plurality of axially extending fingers are disposed at a first axial extremity of the generally cylindrical member and the free ends of all of the second plurality of axially extending fingers are disposed at a second axial extremity of the generally cylindrical member. A nut dimensioned and configured for engagement with the threads on the body.
A lay-in lug which may be used for a grounding connection by securing it to a conductive bushing, or the like, is disclosed. The lug comprises a body member for providing strength and rigidity and a conducting member, supported by the body member, for providing a low resistance conduction path. The conducting member is in direct contact with both the laid-in wire and the bushing, or the like, whereby a low resistance conduction path is provided between the wire and the bushing. First and second clamping means secure the lug to the bushing and hold the wire in contact with the conducting means, respectively. The conducting member may be selectively removable from the body member and may include a turned-up lip for helping to retain a wire in contact therewith. The conducting member may also include means for inducing slight deformation of a wire compressed thereagainst to increase the pull-out force required to extract the wire. The conducting member adjusts, by mild deformation, to bushings of various configurations.
One or more radially projecting tabs are provided on a discontinuous ring for retaining the ring in proper association with a body member in spite of movement or vibration of the assembly. The tab, or tabs, mate with a grooved section of the body member. The groove may comprise a thread. The ring may be internal or external to the body member. The retaining tab will project radially outward or inward when the ring is to be internal or external, respectively, to the body member. The tabs have an axial thickness of the order of 25 percent, or less that of the ring. To provide secondary internal retaining means, a portion of the ring may be cut from an oversize ring so that a stress is formed when the ring is closed for inserting the ring in an internal opening. When a ring is to be used external to a body member, a simple cut may be made in an undersize ring so that a stress is formed when the ring is opened for placement external to the body member. The ring may be fabricated from any suitable material including: metal, plastic, or an elastomeric material.
Means And Method For Reducing The Perimeter Of A Hollow Thin Walled Member
The wall of a thin walled hollow member such as the ferrule portion of an electrical terminal or the like is subjected to a longitudinal pinching force which may be applied by one or more pair of spaced parallel elongate forming surfaces at selective locations along the length of the perimeter of the thin walled member to produce one or more obliquely angled double thickness fins which are then subjected to an inwardly directed radial force causing the fins to be folded back against the outer surface of the hollow member which is thus tightly contracted about a further member located within the hollow member.
Cable Fitting With Variable Inner Diameter Grommet Assembly
A cable fitting which secures and provides strain relief for a cable passing therethrough is capable of use with a wide range of cable diameters. A grommet assembly disposed within the cable body and compressed by a nut has an insert which is removably disposed in the grommet of the grommet assembly and is in an interlocking relationship with the grommet so that the insert does not appreciably move axially with respect to the grommet.
Walter W. Bachle - Harwinton CT Raymond Chase - Terryville CT
Assignee:
General Signal Corporation - Stamford CT
International Classification:
F16L 5500 F16L 5700
US Classification:
285 23
Abstract:
A seal or connector and seal apparatus which includes a generally annular member having an outer surface and an inner surface and a plurality of tabs extending generally radially from at least one of the surfaces. The tabs are disposed to engage axially spaced teeth of an associated helically shaped threaded surface.
A lay-in lug to be coupled to a bushing, or the like, for providing a low resistance grounding connection between a wire secured in the lug and the bushing. The lug comprises a body member and a conduction member for providing strength and a low resistance conduction path, respectively. The body member supports the conduction member and includes resilience to compensate for cold flow of the laid-in wire. The conduction member is in direct contact with both the laid-in wire and the bushing to provide superior conduction between the wire and the bushing. In addition, the wire is pressed against one side of the back portion of the body member and the reverse side of the back of the body member is in direct contact with a back section of the conduction member. Although the conductivity of the body member is not as good as that of the conduction member, the resistance through the back of the body member between the wire and the back of the conduction member is not large due to the fact that the path is short and the cross-sectional area is relatively large. The body and conduction member are fabricated with appropriate proportions and angles to encourage controlled deformation of the conduction member as the lug is attached to the bushing and to assure improved conduction of the combination and good support for the conduction member.
Clamp For Grounding And Clamping A Conduit To A Support Member
A clamp for grounding and clamping a conduit to a support member, such as a cable tray, and comprising a relatively thin pad member interposed between the conduit and the support member. The pad member includes serrations, knurling and/or other surface discontinuities, but is otherwise configured to mate with the conduit and the support member so that when pressure is applied between the mating surfaces a good electrical contact is achieved. The required pressure is provided, for example, by a jaw member and a U-bolt working in combination with the other members such that the jaw contacts the support member opposite at least a portion of the pad in contact with the support member. The ends of the U-bolt pass through the pad and the jaw member so that nuts installed on the ends of the U-bolt cause the conduit to be pressed into the pad. The jaw and the pad securely clamp the support member. The jaw may include arcuate slots and/or a plurality of holes so that its angular relationship, with respect to the pad, may be varied in order to accommodate clamping the conduit at a variety of angles with respect to the support member.