Abstract: A computer system (200) includes a baseboard (202) having a first side (201) and a second side (203), where the first side and the second side define a first key opening (205) and a second key opening (207). A mezzanine card interface (208) is coupled to the baseboard. A keying mechanism (219) is coupled to interface with the baseboard through the first key opening, where coupling the keying mechanism to the baseboard initiates a first key signal (225), and where the first key signal operates a logic circuit (229) to permit a first operating voltage (218) to power the mezzanine card interface. Alternatively, the keying mechanism can be coupled to interface with the baseboard through the second key opening, where coupling the keying mechanism to the baseboard initiates a second key signal (227), and where the second key signal operates the logic circuit to permit a second operating voltage (220) to power the mezzanine card interface.

Abstract: A pruner attachment apparatus includes a body releasably attachable to a shoe of a power tool of the type having a reciprocating saw blade. The body includes a front face for engaging a workpiece. The pruner attachment apparatus further includes a hook member for engaging the workpiece. The hook member is laterally spaced from the saw blade of the tool and is mounted to the body for movement along a path between a first position and a second position. The path includes an upper curvilinear portion configured such that movement of the hook member from the first position to the second position positions the hook member completely behind an imaginary line in a common plane with the front face. A biasing mechanism biases the hook member to the second position.

Abstract: A computer-implemented system (10) for designing communications circuits includes one or more route plans (16) each with a first route point group (38) for a first circuit end point (34), a second route point group (38) associated with a second circuit end point (34), and one or more routes (32) connecting the first and second route point groups (38). Each route (32) is available for use in designing the circuit. A design engine (12) accesses a particular route plan (16), selects a route (32) according to the route plan (16), and automatically assigns the selected route (32) to the circuit in designing the circuit. The design engine (12) may select the particular route plan (16) from among multiple route plans (16) according to a service application (14) that is automatically derived from an associated circuit order.

Abstract: A power tool has a mechanism for ejecting a battery pack which includes a receiving frame which defines a cavity to receive a battery pack. A receiving member is adjacent the cavity. The receiving member meshes with a member on the battery pack to hold the battery pack in the cavity. A biasing member is in the cavity adjacent the receiving member. The biasing member ejects the battery pack from the ejecting mechanism. A member retains the biasing member in the cavity. The member guides a portion of the battery pack meshing with the receiving member into contact with the biasing member such that when the battery pack is locked onto the frame, the biasing member is in a compressed condition and when the battery pack is an unlocked position, the biasing member ejects the battery pack from the frame.

Abstract: A switch lockout mechanism for a power tool includes a handle housing for gripping by a power tool operator. The handle housing is generally elongated in a direction corresponding to the gripping axis of a power tool operator. A switch is attached to the housing and is actuatable between an “on” position and an “off” position. A locking member is rotatably or pivotally attached to the housing. The locking member is rotatable about an axis that generally extends in the same direction as the handle housing in an elongated direction. The locking member has a first rotatable position wherein the switch is locked in its “off” position, and a second rotatable position wherein the switch is actuated to its “on” position. An actuating member allows a tool operator to move the locking member between its first and second positions.

Abstract: A viewing window for covering an aperture in a hand-held circular saw includes an optically transmissive member adapted to be coupled with the guard. The member is movable between a closed position, wherein the member substantially covers the aperture, and the open position, wherein the member at least partially uncovers the aperture, to allow the cleaning of the member. A structure is provided for biasing the member to the closed position.

Abstract: A pruner attachment apparatus for a power tool having a body, a shoe extending from the body, and a saw blade interconnected to the body for reciprocating motion. The pruner attachment apparatus includes a mounting member, a hook member and a biasing mechanism. The mounting member is releasably attachable to the shoe. The hook member is carried by the mounting member for movement between a first position and a second position. The biasing mechanism biases the hook member to the second position.

Abstract: Insulating oil in electric power transmission devices such as a transformer is filtered for removal of accumulated water and carbon particles. The filter and circulation pump are usually located in a separate cabinet external to the transformer with circulation conduits connecting the filter, the pump and the transformer. To prevent environmental contamination by leaks or ruptures in the oil circulation conduits, secondary or sleeving conduits surround and protect the circulation conduits and additionally provide an independent leak flow conduit back to the filter cabinet dry sump. An accumulation of oil in the dry sump actuates a fluid sensor to transmit an alarm signal.

Abstract: A pruner attachment apparatus includes a body releasably attachable to a shoe of a power tool of the type having a reciprocating saw blade. The body includes a front face for engaging a workpiece. The pruner attachment apparatus further includes a hook member for engaging the workpiece. The hook member is laterally spaced from the saw blade of the tool and is mounted to the body for movement along a path between a first position and a second position. The path includes an upper curvilinear portion configured such that movement of the hook member from the first position to the second position positions the hook member completely behind an imaginary line in a common plane with the front face. A biasing mechanism biases the hook member to the second position.

Abstract: A system (10) for designing diverse communications circuits (36) includes a diversity set (14) identifying at least one circuit (36) that is to be diverse from one or more other circuits (36) in the diversity set (14). The system (10) further includes one or more diversity rules (16) applicable to one or more circuits (36) belonging to the diversity set (14). A diversity engine (12) validates the assignment of at least one circuit element to a circuit (36) in the diversity set (14), according to the diversity rules (16), such that the circuit (36) is diverse from at least one other circuit (36) in the diversity set (14) with respect to that circuit element. The diversity engine (12) may generate one or more diversity violations (18) if the assignment of the circuit element fails to comply with the diversity rules (16) and may associate the diversity violations (18) with the circuit (36) and its diversity set (14) to indicate a possible need to modify the assignment.

Abstract: A computer-implemented system (10) for designing communications circuits includes one or more route plans (16) each with a first route point group (38) for a first circuit end point (34), a second route point group (38) associated with a second circuit end point (34), and one or more routes (32) connecting the first and second route point groups (38). Each route (32) is available for use in designing the circuit. A design engine (12) accesses a particular route plan (16), selects a route (32) according to the route plan (16), and automatically assigns the selected route (32) to the circuit in designing the circuit. The design engine (12) may select the particular route plan (16) from among multiple route plans (16) according to a service application (14) that is automatically derived from an associated circuit order.

Abstract: A pruner attachment apparatus for a power tool having a body, a shoe extending from the body, and a saw blade interconnected to the body for reciprocating motion. The pruner attachment apparatus includes a mounting member, a hook member and a biasing mechanism. The mounting member is releasably attachable to the shoe. The hook member is carried by the mounting member for movement between a first position and a second position. The biasing mechanism biases the hook member to the second position.

Abstract: A switch lockout mechanism for a power tool includes a handle housing for gripping by a power tool operator. The handle housing is generally elongated in a direction corresponding to the gripping axis of a power tool operator. A switch is attached to the housing and is actuatable between an “on” position and an “off” position. A locking member is rotatably or pivotally attached to the housing. The locking member is rotatable about an axis that generally extends in the same direction as the handle housing in an elongated direction. The locking member has a first rotatable position wherein the switch is locked in its “off” position, and a second rotatable position wherein the switch is actuated to its “on” position. An actuating member allows a tool operator to move the locking member between its first and second positions.

Abstract: A viewing window for covering an aperture in a hand-held circular saw includes an optically transmissive member adapted to be coupled with the guard. The member is movable between a closed position, wherein the member substantially covers the aperture, and the open position, wherein the member at least partially uncovers the aperture, to allow the cleaning of the member. A structure is provided for biasing the member to the closed position.

Abstract: A switch lockout mechanism for a power tool includes a handle housing for gripping by a power tool operator. The handle housing is generally elongated in a direction corresponding to the gripping axis of a power tool operator. A switch is attached to the housing and is actuatable between an “on” position and an “off” position. A locking member is rotatably or pivotally attached to the housing. The locking member is rotatable about an axis that generally extends in the same direction as the handle housing in an elongated direction. The locking member has a first rotatable position wherein the switch is locked in its “off” position, and a second rotatable position wherein the switch is actuated to its “on” position. An actuating member allows a tool operator to move the locking member between its first and second positions.

Abstract: A window assembly for a power tool has a glass plate with an upper surface, a lower surface, and a peripheral edge. The plate is configured to generally cover an aperture formed in the upper saw guard of the power tool. A plastic layer having a peripheral edge is positioned on the upper surface of the glass plate. A frame engages the peripheral edge of the glass plate and the peripheral edge of the plastic layer. The frame is adapted to be attached to the guard so that the window covers the aperture and allows viewing of the cutting tool by the power tool operator.

Abstract: A viewing window for covering an aperture in a hand-held circular saw includes an optically transmissive member adapted to be coupled with the guard. The member is movable between a closed position, wherein the member substantially covers the aperture, and the open position, wherein the member at least partially uncovers the aperture, to allow the cleaning of the member. A structure is provided for biasing the member to the closed position.

Abstract: A nozzle assembly for a power tool that generates dust includes a housing surrounding a portion of the power tool, an outlet section of the housing for accommodating the flow of dust away from the power tool and a conduit that is coupled with the outlet section to direct the flow of dust from the housing. During operation of the power tool, the conduit is rigidly coupled with the outlet section in an advanced position in which rotational movement of the conduit relative to the outlet section is impeded. The direction of dust flow out of the conduit may be selectively adjusted by transferring the assembly to a retracted position in which rotational movement of the conduit relative to the outlet section is substantially unimpeded. The outlet section and conduit may be tapered so that the advanced position is obtained through a friction fit.

Abstract: A power tool has a body with a motor disposed therein. The motor has a saw blade coupled therewith. A guard covers at least a portion of the saw blade. A window is pivotally mounted to the guard and movable between an open position and a closed position. The window has an abutment surface. A deformable elongated member has a first end fixed to the guard and a second end that is free to move with respect to the first end due to the deformable nature of the elongated member. The elongated member has a first position wherein the second end rests adjacent the abutment surface to prevent opening of the window. The deformable member is in a generally linear configuration when in its first position such that attempted opening forces are transferred along the axis of the elongated member.

Abstract: A switch lockout mechanism for a power tool includes a handle housing for gripping by a power tool operator. The handle housing is generally elongated in a direction corresponding to the gripping axis of a power tool operator. A switch is attached to the housing and is actuatable between an "on" position and an "off" position. A locking member is rotatably or pivotally attached to the housing. The locking member is rotatable about an axis that generally extends in the same direction as the handle housing in an elongated direction. The locking member has a first rotatable position wherein the switch is locked in its "off" position, and a second rotatable position wherein the switch is actuated to its "on" position. An actuating member allows a tool operator to move the locking member between its first and second positions.