Class 174/666 - Knockouts

Subclass of Class 174 - Electricity: conductors and insulators
Definition: Subject matter including opening closures which are designed
No. of patents: 33
Last issue date: 05/25/2010

Number	Title	Issue Date
7723623	Electrical duplex connector having an integrally formed connector body with a frustro-conical retaining ring and unidirectional cable retainers This disclosure is directed to electrical connectors, and more specifically to a duplex or multiplex electrical connector having an integrally formed connector body having an inlet end portion defining a plurality of passageways for receiving a cable, and an outlet ...	05/25/2010
7645947	Electrical connector with outer retainer ring and internal unidirectional conductor retainer Various embodiments of an electrical connector assembly that includes a connector body having an inlet end portion and an outlet end portion. The outlet end portion is held in a knock out hole of an electric box and the inlet end portion is provided with an adjacent...	01/12/2010
7488905	Electrical connector with outer retainer ring and internal unidirectional conductor retainer This disclosure is directed to various embodiments of an electrical connector assembly that includes a connector body having an inlet end portion and an outlet end portion. The outlet end portion has an associated locking member whereby it can be readily attached to...	02/10/2009
7390980	Snap engagement electrical connector with split connector body A electrical connector for connecting conduit or cables to a junction box. The connector includes a tubular connector body with a longitudinal slot extending substantially along the length of the connector body and dividing the tubular connector body into an upper h...	06/24/2008
7358448	Electrical connector assembly with frusto-conical snap fit retaining ring for enhancing electrical grounding of the connector assembly to an electrical box and installation tool therefor An electric connector assembly made up of a connector body having an inlet end portion, an outlet end portion, and a bore communicating the inlet end portion to the outlet end portion; and having a frustro-conical retaining ring mounted on the outlet end portion whe...	04/15/2008
7353961	Outlet box knockout An electrical outlet box molded of plastic material has a knockout arrangement in a box wall that is formed by inner, intermediate and outer circular grooves that are eccentrically positioned to overlap at a tangent location and define inner, intermediate and outer ...	04/08/2008
7355130	Cable sealing device A cable sealing device (10) includes a member (14) includes an elastomeric material and adapted to be fitted into a cable receiving aperture. The member includes a first wall (16) and a second wall (18) spaced apart from the first wall to...	04/08/2008
7315458	Fixing mechanism for fixing a functional extension card to a mechanical frame A fixing mechanism for functional extension cards is disclosed, which can be fixed by fixing bolt thereof to the mechanical frame of a computer system having at least a first positioning hole and a second positioning hole, and to a bayonet board of the functional ex...	01/01/2008
7254041	Expansion card mounting apparatus A mounting apparatus for expansion cards, each of the expansion cards includes a slot cover. The mounting apparatus includes a chassis having a rear panel, a retaining bracket, and a top cover mounted on the chassis. The rear panel defines a plurality of slots for r...	08/07/2007
7225940	Oil shield dispenser A device for protecting the surface of homes and surrounding soil from heating oil spillage during the filling process of a heating oil tank that is stored inside of or underneath the home. The device catches any spilled oil thereby protecting the home and preventin...	06/05/2007
7214890	Electrical connector having an outlet end angularly disposed relative an inlet end with outer retainer ring about the outlet end and internal unidirectional conductor retainer in the inlet end This disclosure is directed to electrical connectors that include a connector body having an inlet end portion and an outlet end portion and a bore extending therethrough, wherein the outlet end portion is provided with an outer surface that slopes downwardly toward...	05/08/2007
7205489	Snap fit electrical connector assembly with operating tool for facilitating the connection of a connector assembly to an electrical box An electric connector assembly having a connector body defining an inlet end portion and an outlet end portion and having a frustro-conical retainer ring connected to the outlet end portion wherein the retainer ring is formed with locking and grounding tangs arrange...	04/17/2007
7177148	Outdoor-installed power conditioner device An enclosure is formed of an outer case and a lid. The outer case includes a first projecting strip portion provided on a top face side of the outer case and on an outer peripheral portion defining an opening, and extending to project outwardly from the outer case, ...	02/13/2007
7126064	Connector for affixing cables within junction boxes A connector for affixing cables (e.g., of the type having wires bundled within a corrugated cover) within an electrical or other junction box has a body with a first end into which the cable cover (and the wires therein) may be inserted, and a second end configured ...	10/24/2006
6639151	Fixing structure for extension cards A fixing structure for extension cards includes a set of extension slots, a positioning element and a resilient plate. The positioning element engages on an external side of the set of the extension slots, and the resilient plate is fixing on an internal ...	10/28/2003
6616194	Liquid tight connector A liquid tight connector for connecting non-metallic or metallic conduit to panels or similar devices. The connector is an effort and time saving device that allows connection of conduit to panels without the need to disassemble a portion of the connector...	09/09/2003
6242697	Molded plastic enclosure A molded plastic enclosure of an electrical disconnect is presented. The disconnect has a switch mounted within the enclosure for manually disconnecting electrical equipment from a source of power. The disconnect enclosure includes a molded base hingedly ...	06/05/2001
6239370	Electrical line penetration through a housing wall An electrical line penetration through a housing wall made of plastic has electrical traces embedded in a flexible conductor. The electrical traces of the flexible conductor have electrical contact points on both sides of the housing wall. The flexible ci...	05/29/2001
5663525	Electrical meter box for service lateral and method of using same A method of and a meter box apparatus for connecting a electrical service lateral to a misaligned meter box mounted on the exterior of a building structure such as a residence are disclosed. The meter box apparatus comprises a rectangular box-like enclosu...	09/02/1997
4758180	Multiple size connector panel and method for constructing An electrical connector panel includes a two-piece knock-out plug having a raised portion formed in a configuration of a first electrical connector member and a portion flush with the surface of the panel member which when removed in conjunction with the ...	07/19/1988
4753018	Multivent system for dryer exhaust A method of making a knockout plug in a sheet of metal is provided. The method comprises the steps of: shearing the sheet metal along a majority of a perimeter of a geometric shape so that a plug is produced retained to the sheet metal by at least one ret...	06/28/1988
4733015	Termination assembly A plastic molded termination box assembly and a plastic molded end termination are both characterized by cavities defined by side walls tapering convergently toward one end and away from an open mouth, and separate parts defining a socket with walls direc...	03/22/1988
4649230	Electrical universal connecting box For application to different standard dimensions of wires, cables or tubes an electrical connecting box is designed with a lower part (1) with a bottom (2) and upright side walls (6) therefrom, and an upper part (8) in the form of a cover having side wall...	03/10/1987
4612412	Electrical outlet box assembly A non-metallic outlet box assembly attached to an associated wall stud includes a pair of substantially identical, generally rectangular outlet boxes and a mounting bracket molded from resilient, high-impact, plastic material. Each outlet box is open at i...	09/16/1986
4424406	Cable entry port means for electrical outlet box An electrical outlet box has electrical power cable entry ports in which one or more closure panels are each mounted adjacent the rim of the aperture along one edge portion only of the panel, the remaining portion of each panel being free and extending su...	01/03/1984
4389535	Cable entry port means for electrical outlet box An electrical outlet box has electrical power cable entry ports in which one or more closure panels are each mounted adjacent the rim of the aperture along one edge portion only of the panel, the remaining portion of each panel being free and extending su...	06/21/1983
4348547	Electrical outlet box with recessed ports An electrical outlet box includes a set of cable entry ports arranged along a wall of the box. One of the ports is recessed inwardly of the box wall by a recessed wall portion, or shelf, formed adjacent a port structure associated with mounting wiring dev...	09/07/1982
4306109	Electrical wiring box arrangements Electrical wiring box arrangements are provided which include an electrical wiring box and a one-piece cable clamp and electrical wiring device mounting member. The clamp and wiring device mounting member is slideably received in slots in the wiring box w...	12/15/1981
4304957	Electrical outlet box An electrical outlet box having wall areas recessed inwardly from the outermost periphery of the box wall structure, the recessed areas housing pawl mounting devices and electrical power cable entry ports. The cable entry ports have self-opening and/or se...	12/08/1981
4302035	One piece electrical connector There is disclosed an improved one piece electrical connector the type intended to interconnect conduit to a junction box which includes at least one circular knockout plug which upon removal, presents a circular knockout portion, formed by a tubular conn...	11/24/1981
4299363	Connector for non-metallic sheathed cable A connector for connecting non-metallic sheathed cable of both the round and oval types to electrical boxes in which the connector is of all plastic, one piece construction, free of clamps and screwing, and comprises a ring shaped segmented body defining ...	11/10/1981
3959578	Lighting fixture An electrical lighting fixture is provided. The fixture comprises a housing containing conventional electrical components therein. The housing has front and rear surfaces and walls extending between the surfaces. At least one cable opening extends through...	05/25/1976
3943673	Cellular floor, wall or the like structure An improved cellular floor, wall or the like structure is disclosed. The structure in a specific embodiment disclosed, includes a covered raceway for electrical conductors. The raceway has a plurality of knockouts in its cover, and is covered by and at le...	03/16/1976

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Class 174/666 - Knockouts