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| Number | Title | Issue Date |
| 7442888 | Safety lock for interlock switch A safety lock as taught herein comprises first and second members and is configured to lockably mount to an interlock switch. In one or more embodiments, the second member slidably couples to the first member and slides between a disengaged position that allows for ... | 10/28/2008 |
| 7355132 | Side-mounted lock-off accessory for a circuit breaker A circuit breaker lock-off device is side-mounted to a circuit breaker case in a tenacious engagement. The lock-off device has a generally planar body carrying a lock-off arm pivotable in a plane parallel to the body to place an engagement tab extending therefrom in... | 04/08/2008 |
| 7262376 | Circuit breaker lockout device A lockout device for securing a toggle switch. The lockout device includes a body, a first clamping surface, a second clamping surface, and a cam. The first clamping surface and the second clamping surface are moveably coupled to the body and are positioned to defin... | 08/28/2007 |
| 7227092 | Device for actuating an electric switching device with locking device An actuation device of an electric switching device includes a body onto which is mounted a rotary control handle and a device for locking the rotation of the control handle making it possible to lock the control handle when the latter is in the “Off” position. ... | 06/05/2007 |
| 7204105 | Tamper-proof latch cover A latch in a door is protected from an unauthorized entry by forming a first bracket that fits around the latch, and a second bracket that is rotatably connected to the first latch. The second bracket covers the latch when rotated to be in a first position, and expo... | 04/17/2007 |
| 7126067 | Switch blocking apparatus A device to prevent inadvertent closure of switches. The device includes a horizontal blocking member and in some embodiments an optional vertical blocking member. The device attaches to a rotary element in communication with the switch such as an operating pipe and... | 10/24/2006 |
| 7005590 | Electric panel with circuit breaker control gate and circuit breaker control method The main power service panel is provided with a special sliding gate on the face plate which can be selectively positioned to control the manual throw of adjacent circuit breaker handles for main and auxiliary power inputs fed thereto. The control is such that only ... | 02/28/2006 |
| 6940027 | Operating handle locking assembly for an electrical switching apparatus A locking assembly is for a circuit breaker including an enclosure and an operating handle operable between a first, ON position and a second, OFF position with respect to the enclosure. The operating handle includes a first aperture extending therethrough. The lock... | 09/06/2005 |
| 6727441 | Switch lever lock out assembly A switch lever lock out assembly engagable with a switch. The assembly includes a lock out body engageable with a switch to prevent operation of the switch. A lever engaging member is mounted to the body, and has a lock position and an unlock position. In the lock p... | 04/27/2004 |
| 6703572 | Anti-twist insert for circuit breaker handler accessory A switch-lock assembly for securing a circuit breaker in one of a plurality of circuit breaker positions, comprising a switch-lock attachment and an anti-twist insert. The switch-lock attachment includes a spring member adapted to engage a retaining area ... | 03/09/2004 |
| 6696651 | Lock out device for miniature circuit breaker and manual motor controller A lockout for circuit breakers provides a channel holding the circuit breaker toggle bar with a set screw that may be accessed only when an eye of the lockout is free of a padlock shackle. The eye is oriented vertically so that the padlock may be rotated ... | 02/24/2004 |
| 6649851 | Blocking device for switch mechanism A blocking mechanism is used for switching devices. The manual control element of the blocking mechanism can be locked against unauthorized actuation. The blocking mechanism is able to be blocked such that it cannot be detached. Retaining elements can be ... | 11/18/2003 |
| 6423913 | Locking device for handle operating mechanisms A locking device for use on an electric disconnect switch having a handle operator assembly. The locking device includes a slide plate slidably positioned within the housing and a first lock arranged to engage said slide plate and secure the handle operat... | 07/23/2002 |
| 6396008 | Handle lock device and electrical switching apparatus employing the same A circuit breaker includes a housing; separable contacts; an operating mechanism having a movable operator handle with an OFF position and an ON position; and a handle lock device. The handle lock device includes: a member secured to the housing, a flange... | 05/28/2002 |
| 6388213 | Locking device for molded case circuit breakers The invention relates to a locking device mounted directly on a circuit breaker and configured for mounting different locks. The locking device includes a yoke member, a slider member, a handle block and a lock. When the locking device is locked, the hand... | 05/14/2002 |
| 6160227 | Toggle switch stop A retaining element for a toggle switch, including an elongated toggle member which pivots about an axis with respect to a switch body, having an attachment portion, connecting the retaining element to the elongated toggle member and being adapted to supp... | 12/12/2000 |
| 5817999 | Circuit breaker operating handle locking device A locking device is provided for use with a circuit breaker operating handle to selectively keep the handle locked and prevented from moving between ON and OFF positions. The locking device includes a support frame with at least two oppositely directed mo... | 10/06/1998 |
| 5663862 | Enclosure for a circuit breaker An enclosure for a circuit breaker includes a housing sized to support at least one circuit breaker and to permit electrical connections to be made to the circuit breaker. A housing cover or lid is movable between an open position in which the circuit bre... | 09/02/1997 |
| 5593020 | Apparatus for locking a circuit breaker, and methods for forming and using same A safety device for electrical circuit breakers has a base member adapted to be mounted adjacent at least one and preferable a column of circuit breakers. The base member has a plurality of parallel, spaced, transverse grooves. A cover assembly is hingedl... | 01/14/1997 |
| 5467622 | Handle lock for reciprocally movable operator handle A plate pivotally mounted to a padlock hasp adjacent a reciprocally movable operator handle is pivotable from a stored position to one covering the opening of the hasp, the plate having a hole aligned with the opening and smaller than the opening to recei... | 11/21/1995 |
| 5457295 | Circuit breaker A circuit breaker-includes: a casing having a base and a main cover secured to the base, the casing accommodating a circuit breaking mechanism; a recesses formed in one surface of the main cover, the opposite surface of which is on the side of the base, t... | 10/10/1995 |
| 5412167 | Locking device for an electrical switch A locking device is insertable into a cover opening adjacent to a handle of an electrical switch to occupy the space in the cover opening for resisting movement of the handle. The locking device has two pivotally connected members. The pivotal movement of... | 05/02/1995 |
| 5380964 | Switch assembly A control switch assembly includes a housing having a base with an opening and a pair of side walls on opposite sides of the opening. An actuator member is rotatably mounted in the opening and has a body which forms a pocket. The pocket is open at one end... | 01/10/1995 |
| 5349145 | Circuit breaker operating handle interlock A molded case circuit breaker handle interlock unit is arranged on the top surface of the circuit breaker to lockingly prevent intentional displacement of the circuit breaker operating handle from either the ON or OFF positions. The movable clip on the un... | 09/20/1994 |
| 5324897 | Switch locking device A locking device for an electrical toggle switch has a fixed, one piece locking body. An opening extends through the body for receiving a mounting screw for a switch face plate to mount the body on the face plate. The mounting screw receiving opening is p... | 06/28/1994 |
| 5300740 | Circuit breaker lock out - multi-pole Separate parts slidably fitted together, that have opposed and interfacing cavity surfaces forming a cavity therebetween. The device is fitted to ganged switches, with the switch levers, and tie bar, positioned in the cavity. a screw draws the parts toget... | 04/05/1994 |
| 5256838 | Lock out for circuit breakers having hole in actuating lever A slide element has legs springable toward and from each other, the legs having pins on their mutually opposed inner surfaces insertable into a hole in the switch actuating lever. The slide element extends longitudinally of the lever, and therebeyond. A b... | 10/26/1993 |
| 5225963 | Electric switch locking plate device The invention comprises a locking plate device for attachment to opposite sides of a electrical breaker switch to prevent accidental movement of the breaker switch from an "Off" to an "On" position. The plate device has a U shaped metal plate with paralle... | 07/06/1993 |
| 5207315 | Circuit breaker block out A one-piece integral molded plastic article, includes a pair of main parts hinged together, which enclose the actuating element of the circuit breaker and holds it against movement. One form is for push-pull type circuit breakers. Another form includes so... | 05/04/1993 |
| 5181602 | Lockout device for high voltage circuit breaker An improved lockout assembly is provided for a circuit breaker to lock the switch handle into a selected switch position. The lockout assembly includes two main elements, each having a respective foot for engaging a portion of the upper housing wall of th... | 01/26/1993 |
| 5167135 | Safety lockout adapter and coupling member used therefor A safety lockout adapter is formed of two coupling members. Each coupling member is adapted to couple with another corresponding coupling member of substantially similar configuration for locking-out power disconnects or fluid line disconnects. When conne... | 12/01/1992 |
| 5165528 | Circuit breaker lockout device An improved lockout assembly for locking a circuit breaker in a selected off or on position is provided. The lockout assembly includes a lock block and a lock pin. The lock block has a hollow interior which fits over the free end of a switch handle of the... | 11/24/1992 |
| 5122624 | Circuit breaker block out A one-piece molded plastic item, having an original and unfolded condition, and foldable into the double condition, and having ribs and channels on one surface in the unfolded condition which interface in the folded condition and form recesses for receivi... | 06/16/1992 |
| 4978816 | Circuit breaker handle interlock arrangement A handle interlock arrangement is attached to the top surface of a manually operable circuit breaker operating handle to prevent the handle from being locked in its "OFF" position when the circuit breaker contacts are actually in their closed condition. A... | 12/18/1990 |
| 4882456 | Locking device for electrical switch or circuit breaker handle A locking device for a circuit breaker or electrical switch handle includes a support member having an opening conforming to the shape of the switch handle housing or escutcheon and a pair of spaced apart upstanding flanges projecting from the opening. A ... | 11/21/1989 |
| 4733029 | Operating handle locking device for circuit interrupter An operating handle locking device for use with an electrical switchgear such as a circuit interrupter comprises a locking plate for blocking the movement of the operating handle between the ON position and the OFF position, and a support plate secured to... | 03/22/1988 |
| 4677261 | Device for locking the control member of an electrical appliance of the manual control type The device for locking the manual control lever (14) of an electrical appliance such as a switch comprises two adjacent portions (1) pivotally joined together by means of a hinge portion (2), fastening means (3) each extending along an edge portion locate... | 06/30/1987 |
| 4554421 | Molded case circuit breaker with handle lock A molded case circuit breaker includes a handle lock or locking mechanism for preventing unauthorized use of the circuit breaker. The locking mechanism includes a lock cover disposed over a manually engagable handle of the circuit breaker and a spring bia... | 11/19/1985 |
| 4467152 | Circuit breaker lock out assembly A lock out assembly for a circuit breaker which consists of a generally step-shaped unitary base with an aperture in the small portion of the step-shaped base and a roughly "S" shaped retaining pin which loops through the large portion of the step-shaped ... | 08/21/1984 |
| 4347412 | Handle lock device for a switch A handle lock device for a switch, to be mounted to a switch manipulation handle protruded through a handle manipulation opening of a case in which a switching mechanism of the toggle-type is contained, is a lock cover which has a portion elongated so as ... | 08/31/1982 |
