Patents by Inventor Carl R. Tamm

Carl R. Tamm 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).

  • Patent number: 7588224
    Abstract: A universal clamp assembly having a support fitting with arms and a threaded bolt mounted to the arms allowing rotation about a longitudinal axis of the bolt. The bolt is retained against axial movement along the longitudinal axis. A clamp member is rotatably mounted on the bolt between the arms for rotation of the clamp member relative to the support fitting about the longitudinal axis. The clamp member is restrained against axial movement relative to the support fitting and the bolt along the longitudinal axis. The clamp includes a guide opening through which the bolt extends. A keeper is threadedly mounted on the bolt and partially received in the guide opening. The keeper slides in the guide opening along the longitudinal axis and is restrained against rotation about the longitudinal axis of the bolt relative to the clamp member. The keeper is rotatable about the longitudinal axis concurrently with the clamp member.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: September 15, 2009
    Assignee: Hubbell Incorporated
    Inventors: Robert A. Bernstorf, Bastiaan H. Van Besouw, Jeffery L. Thomas, Michael J. Lee, Matthew M. Bates, Gualberto J. Sanchez, Carl R. Tamm, Richard J. Hesson
  • Patent number: 7562848
    Abstract: A single bolt deadend anchor clamp for gripping a cable includes a body having a clevis assembly at a first end and a sagging eye at an opposing second end. A middle body extends between the first and second ends, and includes a reinforcing rib. A pocket is adjacent the reinforcing rib for receiving a keeper inserted above the pocket. A biasing member is disposed between the pocket and the keeper for counterbalancing a load between the keeper and the retaining groove. The biasing member is preferably a spring including a cross bar and two sets of coils.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 21, 2009
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Robert G. Hay
  • Patent number: 7531747
    Abstract: A unitized core grip for an electrical connector includes a longitudinal shaft, a plurality of lobes connected by a plurality of web members, a generally triangular center bore, and a plurality of axial grooves. The core grip is defined by a plurality of longitudinally extending, circumferentially spaced lobes, spaced about a longitudinal axis. The plurality of web members are spaced between and connecting the lobes. The generally triangular center bore is defined by the interior surfaces of the lobes and the web members, prior to compression for receiving a cable.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: May 12, 2009
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Robert G. Hay
  • Patent number: 7530154
    Abstract: A compression connector assembly for securing a cable has a bushing insert and a gripping sleeve. The bushing insert includes a tubular bore, an exterior surface, a conductor receiving end, and a conductor engagement end. The gripping sleeve has an inner recess and an outer surface, and is adjacent to the conductor engagement end. The tubular bore and the inner recess are substantially coaxial, defining a cable securing passageway.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: May 12, 2009
    Assignee: Hubbell Incorporated
    Inventor: Carl R. Tamm
  • Publication number: 20080265119
    Abstract: A universal clamp assembly having a support fitting with arms and a threaded bolt mounted to the arms allowing rotation about a longitudinal axis of the bolt. The bolt is retained against axial movement along the longitudinal axis. A clamp member is rotatably mounted on the bolt between the arms for rotation of the clamp member relative to the support fitting about the longitudinal axis. The clamp member is restrained against axial movement relative to the support fitting and the bolt along the longitudinal axis. The clamp includes a guide opening through which the bolt extends. A keeper is threadedly mounted on the bolt and partially received in the guide opening. The keeper slides in the guide opening along the longitudinal axis and is restrained against rotation about the longitudinal axis of the bolt relative to the clamp member. The keeper is rotatable about the longitudinal axis concurrently with the clamp member.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 30, 2008
    Inventors: Robert A. Bernstorf, Bastiaan H. Van Besouw, Jeffery L. Thomas, Michael J. Lee, Matthew M. Bates, Gualberto J. Sanchez, Carl R. Tamm, Richard J. Hesson
  • Patent number: 7416454
    Abstract: An electrical connector for clamping securely onto a threaded shaft includes a transformer bar, a connector body, a clamping component, and at least two columns for receiving streetlight taps. The transformer bar has a plurality of conductor bores, a distal end, and a bar top. The connector body is at the distal end and has first and second bosses at the bar top and first and second clamping sides. The clamping component is pivotally mounted by an attachment link to be selectively located adjacent one of the first and second clamping sides. Two columns are located adjacent the distal end of the transformer bar, protruding away from the transformer bar, one on each side, for supporting a streetlight tap and a redundant ground close to the connector body and a streetlight tap opposite the distal end.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: August 26, 2008
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Robert G. Hay, Brian A. Naro, Lawrence E. Bradford
  • Patent number: 7311553
    Abstract: A compression connector assembly for securing a cable has a bushing insert and a gripping sleeve. The bushing insert includes a tubular bore, an exterior surface, a conductor receiving end, and a conductor engagement end. The gripping sleeve has an inner recess and an outer surface, and is adjacent to the conductor engagement end. The tubular bore and the inner recess are substantially coaxial, defining a cable securing passageway.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: December 25, 2007
    Assignee: Hubbell Incorporated
    Inventor: Carl R. Tamm
  • Patent number: 7290745
    Abstract: A wedge clamp assembly includes a body having a body cable gripping surface, and a slider having a slider cable gripping surface. The slider cable gripping surface faces the body cable gripping surface to grip a cable. A connector is formed in one of the body and the slider, and includes a slot for moving the slider between closed and locked positions and an end portion formed on the other of the body and the slider. The end portion is axially slidable and rotatable in the slot. A coupling between the body and the slider pivotally connects the slider for movement between the closed position and an open position.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: November 6, 2007
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Lawrence E. Bradford, Robert G. Hay
  • Publication number: 20070167087
    Abstract: An electrical connector for clamping securely onto a threaded shaft includes a transformer bar, a connector body, a clamping component, and at least two columns for receiving streetlight taps. The transformer bar has a plurality of conductor bores, a distal end, and a bar top. The connector body is at the distal end and has first and second bosses at the bar top and first and second clamping sides. The clamping component is pivotally mounted by an attachment link to be selectively located adjacent one of the first and second clamping sides. Two columns are located adjacent the distal end of the transformer bar, protruding away from the transformer bar, one on each side, for supporting a streetlight tap and a redundant ground close to the connector body and a streetlight tap opposite the distal end.
    Type: Application
    Filed: December 12, 2006
    Publication date: July 19, 2007
    Inventors: Carl R. Tamm, Robert G. Hay
  • Patent number: 7219399
    Abstract: A clamp for a cable having a housing with a first end, a second end, and an interior cavity to receive the cable. The clamp also includes a jaw assembly having a notch. The jaw assembly moves between locked and triggered positions within the cavity. A biasing member is disposed within the cavity to bias the jaw assembly towards the triggered position. A retainer is arranged within the cavity and has gripping fingers to engage the notches in the locked position. A trigger is positioned within the cavity. The trigger has an outer locking portion to engage with the gripping fingers to releasably secure the gripping fingers in the notches to retain the jaw assembly in the locked position. When the cable is inserted into the interior cavity and contacts the trigger device, the gripping fingers and notches disengage so that the biasing member biases the jaw assembly towards the first end of the clamp to clamp the cable.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: May 22, 2007
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Robert G. Hay, Stanley R. Siegrist
  • Patent number: 7175484
    Abstract: An electrical connector for clamping securely onto a threaded shaft, comprising a transformer bar, a connector body and a clamping component. The transformer bar has a plurality of conductor bores therein, a distal end, a bar top. The connector body is at the distal end and has a boss at the bar top and first and second clamping sides. The clamping component is pivotally mounted by an attachment link to be selectively located adjacent one of the first and second clamping sides.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 13, 2007
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Robert G. Hay
  • Patent number: 7049520
    Abstract: A connector includes a housing having a receiving end, a narrow end, and two side walls. Additionally, the housing includes a cable nesting section and a closed end recess longitudinally disposed on one of the side walls. First and second guide flanges are connected to the top edges of the side walls and a clamping body is slidably engaged with the housing. The clamping body includes first and second side members with upper bearing surfaces, a base wall connecting the side members, and a clamping body nesting section. A protrusion extends from the first member, and is slidably engaged within the closed end recess. A cable passageway is formed between the nesting sections. The upper bearing surfaces of the clamping body are slidably engaged with the guide flanges of the housing.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: May 23, 2006
    Assignee: Hubbell Incorporated
    Inventors: Carl R. Tamm, Chris A. Andrews, Robert G. Hay
  • Patent number: 6347967
    Abstract: An electrical connector for a threaded shaft includes first and second connector elements, each defining a respective partial-cylindrical threaded surface, a respective hinge element, and a respective tail. The hinge elements are coupled together at a hinge axis such that the connector elements rotate about the hinge axis to move the threaded surfaces toward and away from one another. The threaded surfaces are oriented to contact and intermesh with opposed sides of a threaded shaft, and a fastener holds the tails together to clamp the threaded shaft between the threaded surfaces. A third connector element cooperates with the first connector element to clamp against and establish electrical contact with a cable.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: February 19, 2002
    Assignee: Pan Electric Corporation
    Inventor: Carl R. Tamm
  • Patent number: 6325677
    Abstract: A cable-clamping device includes a second part that is mounted for rotation in a first part. The first part defines a cable-receiving opening, and the second part defines a cable-receiving bore. The opening and the bore define opposed cable-clamping surfaces that clamp a cable therebetween as the second part is rotated in the first part to a closed position. The second cable-clamping surface of the second part is provided with a chamfer that blunts the second cable-clamping surface to reduce any tendency of the clamping device to cut into the clamped cable, while simultaneously enhancing the pull-out resistance.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: December 4, 2001
    Assignee: Pan Electric Corporation
    Inventor: Carl R. Tamm
  • Patent number: 5557070
    Abstract: A cap for a twist-on electrical connector includes a body formed of a semi-rigid insulating material and having a central bore, open at one end and closed at the other end by an integral end wall. The bore of the cap is formed to receive a wire clamping structure such as a coiled spring. The body has a first exterior portion of maximum diameter generally adjacent the open end. Substantially the remaining portion of the body is generally conical and has a pair of generally oppositely positioned laterally extending wings. The wings are each generally tangential to the conical body portion and the outwardly facing side of each wing has a concave pressure application surface area.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: September 17, 1996
    Assignee: Buchanan Construction Products, Inc.
    Inventor: Carl R. Tamm
  • Patent number: 5267880
    Abstract: A connector assembly for electrically connecting or splicing multiple pairs of insulated conductors comprising a feeder circuit, and providing a tap connection through an integral and easily accessible fuse for each phase of the circuit. The assembly comprises a multi-piece housing typically of thermoplastic material, and includes various caps and plugs which when assembled provide a watertight seal for the entire connection. The tap connection, commonly referred to as the load side, comprises a male plug assembly consisting of two blades within a housing which in turn is seated within an elastomeric boot; this entire assembly is mated with a female receptacle on the main housing, coming into intimate contact with the female receptacle, insuring a submersible watertight seal. This tap connection can be readily disconnected and re-connected without interruption to the main feed circuit, by simply unplugging the load side plug from the line side housing.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: December 7, 1993
    Assignee: Buchanan Construction Products, Inc.
    Inventor: Carl R. Tamm
  • Patent number: 5236177
    Abstract: A guide for placement in an opening in an electrical junction box and which will extend into a conduit mounted at the box opening includes a generally tubular body having an axially extending opening. The body is resilient so that external pressure applied thereto will reduce the width of the opening to permit the body and thus the guide to be positioned within the conduit. When pressure is released, the body will expand into an interference fit with an appropriately sized conduit. There is a roller mounted to one end of the tubular body for movement about an axis generally perpendicular to that of the body. Wires or other flexible members may be passed over the roller in moving from a conduit into a box and from the box into a conduit.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: August 17, 1993
    Assignee: Buchanan Construction Products, Inc.
    Inventor: Carl R. Tamm
  • Patent number: 5214247
    Abstract: A cable connector for supporting and retaining electrical conductors or cables in an opening of an electrical junction box or the like. The connector is comprised of a hollow tubular body with a saddle-shaped compound concave flange at one end and longitudinally extending folds or corrugations in opposing sides of the tubular body at the other end. The connector is formed of a readily deformable metal so as to allow the hollow tubular body to be compressed around a cable passed axially through it. The two radii dimensions of the compound concave flange are chosen such that upon compression of the corrugated section the flange is deformed into a flat, planar shape which abuts against the inside wall of the electrical box. Compression of the corrugated end also results in the centermost corrugation being forced outward so as to form an opposing abutment to the flange.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: May 25, 1993
    Assignee: Buchanan Construction Products, Inc.
    Inventor: Carl R. Tamm
  • Patent number: 5029817
    Abstract: A wire pulling guide for use with an electrical conduit elbow having opposed side walls, opposed end walls and a floor, the walls and floor forming a generally rectangular elbow cavity, and a plurality of connector apertures in the elbow communicating with the cavity, the guide comprising a body having a base, support means extending upwardly therefrom, roller means on the support means, and clamp means on the support means, the body being adapted for positioning in the elbow cavity with the working surface of the roller aligned with a connector aperture, and with portions of the elbow in contact with the clamp means.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: July 9, 1991
    Assignee: Buchanan Construction Products, Inc.
    Inventor: Carl R. Tamm
  • Patent number: D318784
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: August 6, 1991
    Assignee: Buchanan Construction Products, Inc.
    Inventor: Carl R. Tamm