Patents by Inventor Robert K. Sheehan
Robert K. Sheehan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8129634Abstract: In an embodiment, a conduit connector can comprise: a body comprising a box engagement region capable of engaging an opening in an enclosure and a spring configured to engage the connector and the enclosure. The box engagement region can have a root surface, a leading tab, and a follower tab wherein the root surface and leading tab can be located between a leading edge and a secondary edge. A leading tab perimeter edge and a follower tab perimeter edge define a tab perimeter diameter that is larger than an opening in the enclosure. When the leading tab is inserted into the enclosure the spring can be disposed to engage the secondary edge and the enclosure.Type: GrantFiled: February 24, 2009Date of Patent: March 6, 2012Assignee: Sigma Electric Manufacturing CorporationInventors: Robert K. Sheehan, Vinayak Manohar Chavan
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Publication number: 20090218131Abstract: In an embodiment, a conduit connector can comprise: a body comprising a box engagement region capable of engaging an opening in an enclosure and a spring configured to engage the connector and the enclosure. The box engagement region can have a root surface, a leading tab, and a follower tab wherein the root surface and leading tab can be located between a leading edge and a secondary edge. A leading tab perimeter edge and a follower tab perimeter edge define a tab perimeter diameter that is larger than an opening in the enclosure. When the leading tab is inserted into the enclosure the spring can be disposed to engage the secondary edge and the enclosure.Type: ApplicationFiled: February 24, 2009Publication date: September 3, 2009Applicant: Sigma Electric Manufacturing CorporationInventors: ROBERT K. SHEEHAN, VINAYAK MANOHAR CHAVAN
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Patent number: 7220923Abstract: A clip-on electrical conduit connector is designed to clip onto conduit for connection to junction boxes. The connector incorporates a junction box engagement portion, a conduit engagement portion, and a conduit stop. The junction box engagement portion includes a pair of attachment prongs and a grip enhancing feature. The conduit engagement portion includes two sides formed with a base, a longitudinal locking projection, and a transverse locking feature. The longitudinal locking projection prevents the conduit from being unintentionally withdrawn from the conduit engagement portion. The transverse locking feature includes a transverse locking gap for preventing unintentional withdrawal of the conduit in a transverse direction from the conduit engagement portion. Prior to final installation, the conduit is forcibly inserted into the conduit engagement portion by squeezing the conduit through the transverse locking gap or by threading the conduit into the conduit engagement portion.Type: GrantFiled: June 30, 2006Date of Patent: May 22, 2007Assignee: Internatioinal Metal Hose CompanyInventors: Robert K. Sheehan, Wayne E. Witsman, Jr.
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Patent number: 7078623Abstract: An electrical conduit to junction box connection system is designed connect conduit to junction boxes. The system incorporates a compression nut and a body. The body includes a box engagement region, a nut engagement region, and a conduit engagement region. The box engagement region includes a radially extending leading and follower tab, a root surface, a tab centering ledge, and a tab centering flank. The nut engagement region includes a nut engagement region thread that cooperates with the compression nut. The conduit engagement region includes a conduit compression system. During installation, the leading tab is inserted into the knockout. An edge of the knockout is positioned in contact with the root surface. The body is reoriented which positions the follower tab inside the junction box. The compression nut is manipulated to compress the junction box between the compression nut and the leading and follower tabs.Type: GrantFiled: November 30, 2005Date of Patent: July 18, 2006Inventor: Robert K. Sheehan
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Patent number: 5912431Abstract: A snap-in locknut adapter is shown for connectors having a flange adjacent a threaded distal end to be inserted through an opening of predetermined diameter in a bulkhead. The adapter is to include a body with front and rear ends, an outer surface, and a hollow interior portion having internal threads corresponding to the threaded distal end of the connector. At least a portion of the outer surface of the body is to have an effective outer diameter less than the predetermined diameter of the opening. The adapter also includes a plurality of peripherally spaced, displaceable snap-lock members which extend outwardly from the outer surface of the body and have an effective outer diameter larger than the predetermined diameter of the opening. Once the displaceable snap-lock members are displaced inwardly and pushed through an opening in a bulkhead, they assume their original shape to thereby resist removal of the adapter from the opening.Type: GrantFiled: October 9, 1996Date of Patent: June 15, 1999Inventor: Robert K. Sheehan
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Patent number: 5866853Abstract: There is provided a strain-relief, liquid tight for connecting conduit or the like to a bulkhead such as an electrical box, with the connector having a body having front and rear portions, and a substantially hollow inner throughbore formed along a longitudinal axis thereof. The front portion of the connector body is adapted for attachment to a bulkhead. A flexible seal member is mounted at least partially within the hollow inner throughbore for receiving a conduit inserted therethrough, this seal member facilitating a substantially liquid tight seal about an inserted conduit during use. An at least partially hollow grip for selectively gripping the conduit is included, and a clamp nut is telescoped over the rear portion of the body for selective longitudinal adjustment therealong. The longitudinal adjustment of this clamp nut provides inward radial compression of the flexible grip about the conduit.Type: GrantFiled: October 7, 1993Date of Patent: February 2, 1999Inventor: Robert K. Sheehan
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Patent number: 5267718Abstract: A single piece hanger structure is provided having a rearwardly extending prongs for mounting the hanger to a wall and a forwardly directed hump situated between upper and lower sets of the prongs to define a prying gap which may be used to pry the hanger from the wall without substantially damaging the wall.Type: GrantFiled: December 8, 1992Date of Patent: December 7, 1993Assignee: Indevco CorporationInventor: Robert K. Sheehan
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Patent number: 5200575Abstract: A connector assembly for providing a substantially fluid-tight connection of a conduit to an electrical box or other apertured bulkhead. A substantially tubular hollow connector body has a front section and a rear section, with the front section having one or more locking tabs for mounting the connector body in the aperture. A substantially hollow sealing member having proximal and distal ends is telescopingly connected over the connector body in non-rotatable condition, and may include an outwardly extending flange adjacent its proximal end. The sealing member also includes a tapered sealing bore for receiving the end of the conduit and, in some applications, includes a plurality of inwardly oriented deburring protuberances near the distal end of that bore. The assembly further includes a substantially hollow sealing sleeve telescopingly surmounting at least a portion of the sealing member.Type: GrantFiled: February 25, 1992Date of Patent: April 6, 1993Inventor: Robert K. Sheehan
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Patent number: 5132493Abstract: There is provided a connector for connecting non-metallic sheathed cable to an electrical box, with such connector including a substantially tubular body defining an axially extending passageway for receiving one or more cables to be connected. The tubular body has a proximal edge and a distal edge. The connector further includes a first end adjacent the distal edge of the tubular body for insertion into an opening in the electricl box, with the first end having an outwardly extending abutment rib circumscribing at least a portion of the exterior periphery of that end and spaced from the distal edge. The first end further includes at least one releasable locking device having an actuator tab to provide for release of the first end from the opening as desired.Type: GrantFiled: January 25, 1991Date of Patent: July 21, 1992Inventor: Robert K. Sheehan
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Patent number: 4990721Abstract: The present invention is directed to an armored cable connector having resilient flanges carried by opposed wings and which flex when the wings are pivoted towards one another to grippingly engage therebetween an armored cable conduit of any size within a range of sizes defined by the connector characteristics. The connector includes snap-acting lock structure on the wings to positively lock the wings closed as they are pivoted together.Type: GrantFiled: January 12, 1990Date of Patent: February 5, 1991Assignee: Corecon CorporationInventor: Robert K. Sheehan
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Patent number: 4861279Abstract: The present invention provides electrical apparatus by which to couple wires of a sheathed cable to the conductors of the apparatus and/or to the wires of another sheathed cable without separately cutting the cable(s), removing the sheathing and/or stripping insulation from the wires of the cable whereby to substantially reduce labor and material costs. The present invention further provides such apparatus which may be directly secured to a structural wall thereby eliminating the use of junction boxes.Type: GrantFiled: October 26, 1987Date of Patent: August 29, 1989Assignee: Corecon CorporationInventors: Robert K. Sheehan, Paul Smester
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Patent number: 4619332Abstract: A connector for perpendicularly mounting a helically grooved metallic conduit onto a junction box or the like. the connector is a one-piece metal member with a center ring from which projects two pairs of projections. The first pair form a compressible tubular member adapted to threadably receive the grooved conduit. The other pair form locking wing means to resiliently engage the wall of the conduit box when the connector is inserted into a hole therein.Type: GrantFiled: January 31, 1986Date of Patent: October 28, 1986Inventor: Robert K. Sheehan
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Patent number: 4366344Abstract: A connector for mounting a helically grooved conductor onto a junction box or the like. The connector is U-shaped and presents three inwardly directed tabs and two barbed fasteners. The conductor is side loaded, or laid into the connector with the tabs becoming lodged in the helical grooves to prevent longitudinal withdrawal. The fasteners are snapped into a hole in a wall to secure the connector with the conductor to the wall.Type: GrantFiled: June 13, 1980Date of Patent: December 28, 1982Inventor: Robert K. Sheehan
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Patent number: D573102Type: GrantFiled: February 2, 2006Date of Patent: July 15, 2008Inventor: Robert K. Sheehan
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Patent number: D339980Type: GrantFiled: October 28, 1991Date of Patent: October 5, 1993Assignee: Indevco CorporationInventor: Robert K. Sheehan