Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7824195 | Dual-mode electrical plug A dual-mode electrical plug includes an insulating body formed with a channel and an elongate guiding aperture; a pair of conductive components disposed on the insulating body; a ground prong including a hollow prong body disposed in the channel and movable between ... | 11/02/2010 |
| 7413790 | Adhesive attachment with electrical ground An adhesive attachment is provided for securely mounting an attachment component such as a threaded stud or the like on the surface of a selected substrate, wherein the adhesive attachment provides an electrically conductive ground path for grounding the attachment ... | 08/19/2008 |
| 7311533 | Light socket structure A light socket structure includes a main body, a plug, a switch control element, and sockets. The plug is movably jointed with the main body. The switch control element is disposed on the main body for controlling the plug to be accommodated within or exposed out fr... | 12/25/2007 |
| 7241169 | Adapter for power supply An adapter for power supply is disclosed. The adapter comprises a body containing a peg module connected a connector of a plug, characterized in that one side of the body of the adapter is a common socket engaged with an engaging slot formed on the housing, the top ... | 07/10/2007 |
| 7223115 | Cross-connect systems with connector blocks having balanced insulation displacement contacts An insulation displacement contact (IDC) includes: upper and lower ends, each of the upper and lower ends including a slot configured to receive a conductor therein, the slots being generally parallel and non-collinear; and a transitional area merging with the upper... | 05/29/2007 |
| 7168968 | Plug adapter A plug adapter includes a holder and a plug. An adaptation ring is provided on the holder; the adaptation ring containing multiple gaps. A mounting plate from the plug is snapped into the adaptation ring and turns in a given direction. The mounting plate is secured ... | 01/30/2007 |
| 7160124 | Electrical plug with a slidable earth pin An electrical plug is disclosed with a slidable earth pin that can be manually positioned in a stored position in a plug body of the electrical plug when the electrical plug is not in use. The slidable earth pin is movable in the channel and retained by an interlock... | 01/09/2007 |
| 7131852 | Retractable plug of power supply A retractable plug of power supply is comprised of a slide seat and a plug body. The slide seat is snap-fastened in a housing and metal pieces are arranged on sides of the plug body. An elastic lamella is disposed above the plug body, and a wedge block is located on... | 11/07/2006 |
| 7121850 | Dual-purpose male/female connector A dual-purpose male/female connector is disclosed. A push button for controlling a terminal base, which is mounted in a USB female socket and includes a connection terminal, to enable the terminal base to extend from or draw back in the female socket is mounted on t... | 10/17/2006 |
| 7121849 | Electrical connector having a ground plane with independently configurable contacts A customizably configurable electrical connector for electrically connecting a plurality of electrically conducting members through at least one electrically conducting ground plate. The ground plate is defined by a plurality of substantially parallel elongated, ben... | 10/17/2006 |
| 7114979 | Structure of conductive sheet in socket A conductive sheet in a socket comprises a conductive sheet body having a conductive terminal on the rear end and two parallel conductive pins on the front end with an inserting slot formed therebetween. One of the conductive pins is provided with a recess, ring or ... | 10/03/2006 |
| 7052298 | Compact traveling-use power adapter structure A compact traveling-use power adapter structure comprises primarily a casing and several adjustable adapting plugs. The adjustable adapting plugs are installed on two sides at the bottom of the lower casing, and rotate toward a common grounding terminator in the cen... | 05/30/2006 |
| 7040931 | Power plug adapter An adapter for connecting a welding-type power source to various different input voltage signals is disclosed. The adapter comprises a body with a receptacle at one end which is connectable to a power cord of a welding-type power source and a plug at another end whi... | 05/09/2006 |
| 6935878 | Electrical plug with pivotable and retractable terminals The present invention discloses a link assembly for connectors, which comprises a main body, a live terminal, a neutral terminal, a ground terminal, and a push rod. The live terminal and the neutral terminal are bent directly under two wire sockets of the main body ... | 08/30/2005 |
| 6923666 | Electrical plug changer An electrical plug changer is described and has a housing, a first electrical plug, a second electrical plug, a linking mechanism and a clamping mechanism. The first electrical plug and the second electrical plug are slidably positioned within the housing. The linki... | 08/02/2005 |
| 6419504 | Slide locked retractable grounding pin power cord plug A power cord connector engages a power outlet of the two wire or three wire types. The connector (plug) has a pair of spaced apart prongs in side by side parallel alignment and a grounding pin which is slidingly mounted within a recess in the connector bo... | 07/16/2002 |
| 6287131 | Plug with a receiving member for grounding prong A plug includes a housing having a compartment, a base mounted in the housing, two blades securely attached to the base, and a grounding prong that is electrically connected to an external grounding wire. The base includes an inner side facing the compart... | 09/11/2001 |
| 6247941 | Combination electric connector having multiple grounding prong receiving portions and a plug unit secured by means of a plurality of hooks and coupling flanges A combination electric connector includes a socket unit and a plug unit, the socket unit having a set of plug blade receiving holes extended through a front side thereof for receiving the metal blades of an electric plug, two grounding prong receiving por... | 06/19/2001 |
| 6215671 | Method and apparatus for connecting circuit boards A circuit board assembly is provided for electrically coupling together two or more circuit boards, with one circuit board oriented at an acute angle relative to the other circuit board. The assembly includes a first circuit board having a first edge and ... | 04/10/2001 |
| 6053750 | Plug bridge for an electric appliance plug A plug bridge for an electric appliance plug for connection of electric appliances to an outlet of an alternating current network, wherein the appliance plug is formed as a unit by the plug bridge joined to the end part of the appliance cord and enclosed ... | 04/25/2000 |
| 5791921 | Easily operable universal adapter A universal adapter includes: a casing combinable with a front cover and a rear cover having a pair of outlet sockets formed in the rear cover to output power, a first plug having a pair of rectangular-shaped pins slidably held in an upper chamber in the ... | 08/11/1998 |
| 5674083 | ESD protected electrical connector An electrical connector (10) having an array of contacts (14) in housing (12), and including a conductive member (50) affixed to the housing to be nonengagingly adjacent the contacts and define spark gaps (80) therebetween such as at protrusions (58) alon... | 10/07/1997 |
| 5647766 | Modular connector assembly having removable contacts A filtered electrical connector, comprising a plurality of removable contacts, a housing having first contact receiving passages therein into which the contacts are removably secured, and an outer metal shell in which the housing is secured. The connector... | 07/15/1997 |
| 5641292 | Dual-use electric plug A dual-use electric plug including a base having vertical receiving chamber and a horizontal side hole, two blades fixedly and perpendicularly fastened to the front side of base for connection to the black wire and the white wire, a grounding prong suppor... | 06/24/1997 |
| 5622509 | 3-prong electrical connector The disclosure is directed to a 3-prong grounded electrical connector which has a flexible and resilient grounding prong. The resilient grounding prong helps to maintain the connector in mating engagement with an electrical receptacle when the connector i... | 04/22/1997 |
| 5306164 | Electrical connector with adaptable external ground and indicia display A separable electrical connector with a housing formed of electrically insulating material includes an external grounding terminal anchor positioned in a grounding strip groove on the surface of the housing. The groove, in the form of an open-sided recess... | 04/26/1994 |
| 4954091 | Convertible ground safety plug A convertible ground safety plug is provided and consists of a grounding prong carried in an insulated housing. The ground prong can be moved between an active position projecting outwardly from the housing and an inactive position not projecting outwardl... | 09/04/1990 |
| 4878852 | Circuit tester construction A ground pin construction for an electrical device having a housing and prongs for insertion into an electrical socket, the housing including a boss having a bore therein for guiding the ground pin between extended and retracted positions, a flexible memb... | 11/07/1989 |
| 4201431 | Universal adaptable three-prong electrical plug A three-prong electrical plug for power tools and other electrical equipment is provided which can be used with either a 3- or 2-wire electrical outlet. One portion of the body of the plug containing the ground prong is detachably connected to another por... | 05/06/1980 |
| 4113333 | Electrical connector receptacle A connector receptacle which includes removably locked male contact pins, a locking plate and an end plate. The locking plate can either secure the male contact pins in position or allow removal of the male contact pins.... | 09/12/1978 |
| 4078848 | Convertible electrical plug A convertible electrical plug is disclosed in which one of the prongs is a retractable grounding prong movable between a forwardly projecting active position and a rearwardly projecting inactive position, the grounding prong being releasably locked in the... | 03/14/1978 |
| 4015888 | Electrical device with retractable grounding pin and indicating means A portable electrical device has a molded body having a cavity closed by a rear wall. Two conductive prongs project through the rear wall for reception into a phase port and a neutral port, respectively, of an electrical outlet. A retractable grounding pi... | 04/05/1977 |
