...In 1790, the cost to obtain a patent was between $4 and $5.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7614923 | Conductor connection Disclosed herein is a grounding connector. The grounding connector includes a female member, a male member, and a threaded member. The female member includes a first clamp section, a conductor connection section, and a center section between the first clamp section ... | 11/10/2009 |
| 7485014 | Conductor connection Disclosed herein is a grounding connector. The grounding connector includes a female member, a male member, and a threaded member. The female member includes a first clamp section, a conductor connection section, and a center section between the first clamp section ... | 02/03/2009 |
| 7322085 | Portable hose fitting inserter A portable hose fitting insertion apparatus and method. The apparatus can be hand held and operated in areas such that hose repairs can be made without removal of the hose. A friction operated ratcheting mechanism is preferably used to drive a shaft forward. A pad i... | 01/29/2008 |
| 7191987 | Sway brace fitting A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes... | 03/20/2007 |
| 7160142 | Grounding clamp apparatus and method A grounding clamp provides a direct connection to ground between a power transmission or power distribution apparatus and a nearby ground plane. As a grounding clamp is being attached to the mating interface of a power transmission or power distribution apparatus, t... | 01/09/2007 |
| 7052334 | Locking clamp assembly A locking clamp assembly that permits movement in one direction and prevents movement in a second direction to eliminate unintentional locking clamp assembly loosening encountered during normal operation. The locking clamp assembly includes a clamp head with a threa... | 05/30/2006 |
| 6997758 | Connector for connecting two electrical power cables and a connection including the connector A connector for connecting two medium-voltage electrical power cables each including at least one conductor surrounded by an insulative jacket includes tubular screw contacts which connect together stripped ends of the conductors inserted into the contacts and retai... | 02/14/2006 |
| 6979236 | Wedge connector assembly In accordance with one aspect of the invention, an electrical wedge connector assembly is disclosed. The assembly comprises a shell, an eye bolt and a wedge sized and shaped to be inserted into the shell for connecting two conductors to each other. The eye bolt comp... | 12/27/2005 |
| 6953174 | Sway brace fitting A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes... | 10/11/2005 |
| 6935869 | Meter box ground clamp A meter box ground clamp for clamping a ground wire to a metallic meter box includes a clamp body, a wedge body, a bolt member and a ground engagement bolt. The clamp body has a base segment and first and second leg segments, each of the leg segments having a latera... | 08/30/2005 |
| 6921300 | Electrical connector An electrical connector has an elongated metal base portion, a releasable cable clamp at each opposite end of the base portion, and a connector block of electrical insulating material secured to the base portion between the cable clamps. The connector block has at l... | 07/26/2005 |
| 6857881 | Meter box ground clamp A meter box ground clamp for clamping a ground wire to a metallic meter box includes a clamp body, a pressure bar, a floating nut, a bolt member and a ground engagement bolt. The clamp body has a base segment and first and second leg segments, each of the leg segmen... | 02/22/2005 |
| 6533605 | Bottom plate fixing device for a switchgear cabinet A bottom plate fixing device for a switchgear cabinet, whereby an edge of at least one bottom plate is placed on a support flange of a bottom frame of the switchboard cabinet and is preloaded by at least one fastening clip. The clip has two parallel legs ... | 03/18/2003 |
| 6325678 | Electrical clamp connector An electrical clamp connector for clamping ground conductors employs interconnecting male and female clamp sections having integrally extending jaws. The male clamp section forms a tongue which is received in a complementary groove defined by the female c... | 12/04/2001 |
| 6010376 | Connectors for electrical conductors A connector for electrical conductors with at least one spring-force clamped connection in the form of a loop-shaped bent clamping spring. The task is to reduce as much as possible the structural height of the clamping spring measured crosswise to the dir... | 01/04/2000 |
| 5928006 | Clamping bracket for a grounding system A clamping bracket connects an electrical wire to a lip of a grounded utility box so as to ground the wire. The bracket has U-shaped portions and a threaded stud which moves an annular abrading end surface with a center cone point into engagement with the... | 07/27/1999 |
| 5807143 | Connecting terminal A connecting terminal for a busbar and a connecting cable having a hook strap which can be pushed on the busbar. A clamping strap can be adjusted by an attachment screw which clamps the connecting cable to the busbar. A holding strap provisionally holds t... | 09/15/1998 |
| 5746609 | Clamping bracket for a grounding system A clamping bracket connects an electrical wire to a lip of a grounded utility box so as to ground the wire. The bracket has U-shaped portions and a threaded stud which advances an annular abrading end surface with a center cone point into engagement with ... | 05/05/1998 |
| 5556299 | Self-latching clamp for power lines A clamp is provided which automatically latches onto a power line when brought into contact with the line for grounding the line or other purposes. The clamp has structural features which prevent inadvertent triggering of the latch mechanism before contac... | 09/17/1996 |
| 5547404 | Fixed spacer hot line tap A fixed spacer hot line tap has a body with a base and a run-conductor groove. An eyebolt passes through the base and has a tip disposed between the base and the run-conductor groove. The eyebolt has a tip, on which is attached an extender having at least... | 08/20/1996 |
| 5286211 | Ground connector A connector for connecting a signal reference grid conductor to a support post. The connector includes a body member having a first end profiled to receive the post within a seat and a plurality of recesses disposed along the seat for receiving the conduc... | 02/15/1994 |
| 5173066 | Chip holder fixing device A chip holder fixing device comprising an arm having a circular hole defined therein into which a rear portion of a chi8p holder is inserted. The chip holder is fastened to the arm by way of a bolt. The arrangement assures the positioning of the chip hold... | 12/22/1992 |
| 5160271 | Adjustable telephone interface mounting clamp A clamp for mounting and grounding a telephone interface box to an electric utility box of variable width is provided. The clamp has base which spans one side of the box. The base is adjustable through a range of finely graduated widths. Arms extend from ... | 11/03/1992 |
| 5152701 | Grid connector A connecting device for electrically and mechanically joining two conductors positioned substantially perpendicular having improvements allowing for easier and safer installation. The connector includes a C-shaped body member and a wedge assembly. The C-s... | 10/06/1992 |
| 5092797 | Electrical wire connector An electrical wire connector (10) has a C-shaped body section having arcuate ears (22) laterally therealong and converging from a wide end to a narrow end and forming wire grooves (24), a wedge having converging concave side surfaces (32) forming wire cha... | 03/03/1992 |
| 5085583 | Portable loadmake/loadbreak switch and liveline eyebolt terminal clamp This invention involves a portable loadmake/loadbreak switch assembly or system which can be used to make or break high amperage power circuits. This switch is first connected in series with the circuit. When the current is running through the switch, the... | 02/04/1992 |
| 5033971 | Grounding system and stud A system for common grounding of a telephone system and an electric power system is provided. A stud is provided that is integrally secured to the outer surface of an electrical meter box without penetrating the inside of the meter box. The stud is connec... | 07/23/1991 |
| 5018984 | Telephone interface mounting clamp A clamp is provided for mounting a telephone interface box to an electric utility box. The telephone interface box is mounted to a plate which is in turn connected to a clamp secured to the utility box. A moveable slide plate can be used to secure the cla... | 05/28/1991 |
| 5015205 | Cable clamp An improved telephone cable lashing wire clamp provides a mechanical connection between a telephone cable messenger wire and a telephone cable lashing wire. A hook member engages the messenger wire and a messenger wire retaining nut secures the messenger ... | 05/14/1991 |
| 5006074 | Adjustable ground clamp An adjustable clamping device provides a means for grounding a hollow metal box which can be of various dimensions. A C-shaped clamping device includes two separate, elongated members, and a threaded bolt and tab to secure the two members together. One of... | 04/09/1991 |
| 4993960 | Grounding system and clamp A system and clamp provides a common system for grounding a telephone system and an electrical power system. The clamp is secured to an electrical meter box and the clamp is connected through a grounding connection to the telephone system. The clamping de... | 02/19/1991 |
| 4934949 | Self-cleaning hot line clamp A self-cleaning hot line clamping device used by electric utilities, having clamps for electrically connecting a line conductor to another piece of electrical equipment such as a second line conductor or tap conductor. At least one of the clamps has a fir... | 06/19/1990 |
| 4925395 | Clamp for electrically conductive strips A clamping device having a U-shape provides a mechanical and electrical connection between two flat ribbons or strips of electrically conductive material. The strips of material may, for example, be thin copper bars for grounding purposes in an undergroun... | 05/15/1990 |
| 4911572 | Cable tie back clamp A tie back clamp is provided for retaining a severed end of a power cable in a safe, removed position when it is necessary to cut the cable to perform service or otherwise work on the power line. The clamp retains a tail or end portion adjacent the locati... | 03/27/1990 |
| 4904193 | Electrical grounding clamp A removable electrical ground clamp is provided that is easily installed on an outside electrical meter or breaker box by establishing pressure contact with the box. An attachment lug is provided on the grounding clamp for connecting a ground wire for use... | 02/27/1990 |
| 4884976 | Clamp for electrically conductive strips A clamping device having a U-shape provides a mechanical and electrical connection between two flat ribbons or strips of electrically conductive material. The strips of material may, for example, be thin copper bars for grounding purposes in an undergroun... | 12/05/1989 |
| 4857020 | Tap connector A tap connector for establishing and maintaining an electrical connection between electrical conductors. The connector has a body whereof the sides define a channel which slidably receives a laterally expandible and contractable wedge assembly. In use, th... | 08/15/1989 |
| 4846725 | Self-latching power line clamp A clamp is provided for grounding electrical power lines and the like. The clamp automatically latches itself into a firm gripping relationship with the electrical power line when brought into contact with the power line.... | 07/11/1989 |
| 4828504 | Clamp A clamping device having a U-shaped portion between which material is positioned to be mechanically and electrically coupled to the clamp when engaged. One inner surface of the U-shaped clamp includes a conically-shaped tip of a hardened material which is... | 05/09/1989 |
| 4778413 | Ground clamp for a welding apparatus The invention relates to a ground clamp for a welding apparatus. The ground clamp comprises a fastening screw rotatable in a body and a counter jaw formed in the body, which fastening screw and jaw together form a screw clamp by means of which the ground ... | 10/18/1988 |