459 results about "Interlock" patented technology

A computer numerically controlled machine may include a movable head configured to deliver electromagnetic energy to a part of a working area in which the movable head may be commanded to cause delivery of the electromagnetic energy. The interior space may be defined by a housing and may include an openable barrier that attenuates transmission of light between the interior space and an exterior of the computer numerically controlled machine when the openable barrier is in a closed position. The computer numerically controlled machine may include an interlock that prevents emission of the electromagnetic energy when detecting that the openable barrier is not in the closed position. The commanding may result in the computer numerically controlled machine executing operations of a motion plan for causing movement of the movable head to deliver the electromagnetic energy to effect a change in a material at least partially contained within the interior space.

The invention relates to a metal plate rotating friction riveting method which adopts a semitubular rivet, a cylindrical punching lever and a die, wherein the semitubular rivet comprises an integrally arranged clamping lever, a rivet cap and a semitubular rivet shank, the head of the cylindrical punching lever is provided with a rotary circular pit, and the middle part of the pit is provided with a protruding plug; the cylindrical punching lever is vertically positioned in the die and supported by the die; and the shape of the circular piston hole in the die is matched with that of the cylindrical punching lever. The invention provides a riveting technology for metal plate connection in a wider application range, and also provides a new metal plate riveting method aiming at the defects in the existing riveting technology. The invention uses the plug-free semitubular rivet, and the mechanical interlock between the plate and the rivet is formed by the extrusion of the punching lever with a tapered plug at the head; and thus, the rivet structure is simplified, and the rivet can rotate into the metal plate more easily, so that the extrusion pressure required by the rivet swelling strain for forming the mechanical interlock is reduced.

A revetment block for use forming an articulating revetment mat. The revetment block has first and second ends and first and second sidewalls. The sidewalls have a first lower vertical surface, first and second upper vertical surfaces, and transition surfaces between the upper and lower vertical surfaces. The sidewalls define interlocks which extend outward from the sidewalls and are either normal to the upper vertical surfaces or angled. The sidewalls also design corner spaces comprising a transition surface and at least on vertical surface for operably communicating with an interlock. The revetment block may also comprise a plurality of ducts extending therethrough as well as a dome extending from the top surface of the revetment block. The revetment block may also comprise at least one aperture extend vertically through the block. The aperture may have tapered walls.

An interlock mechanism for preventing a first circuit breaker having a first actuating mechanism and a second circuit breaker having a second actuating mechanism from simultaneously being in a closed condition. The interlock mechanism includes a frame, a sliding bar slideably mounted within the frame, and one or more retaining protrusions extending outwardly from one or more inner edges of the frame. The sliding bar is movable between a first position and a second position. In the first position the sliding bar blocks a path of movement of the first actuating mechanism and in the second position the sliding bar blocks a path of movement of the second actuating mechanism. The one or more retaining protrusions frictionally engage the sliding bar when the sliding bar is in the first position and holds it in place, preferably with a frictional force sufficient to resist the force of gravity and/or vibrations.

Reinforcing is disclosed that comprising a reinforcing bar extending along a portion of the length of the reinforcing and a termination extending along an end portion of the reinforcing. The termination is disclosed as being permanently bonded to the reinforcing bar preferably by a friction welding process so as to form an integral connection. The termination has a body extending in a longitudinal direction between opposite first and second ends, and a lateral engagement face formed on the body. In use the first end is joined to an end the reinforcing bar, and the engagement face incorporates locking formations thereon arranged to interfit with a complementary shaped termination to form an interlock arranged to accommodate loading applied in the longitudinal direction.

The invention provides an interlock system whereby operation of a domestic appliance such as a food processor containing an electric motor capable of driving a bladed or similar processing tool at relatively high speed is inhibited unless a vessel having a first or a second base configuration is securely mounted to the appliance so as to contain the tool; the vessel having a lid or cover intended to be in place for safe operation when the processing tool is driven by the motor. A vessel-supporting surface of the appliance carries several up-standing latches, each of which is formed with features capable of co-operating with vessels having either of the base configurations to temporarily latch either type of vessel operationally to the appliance. At least one of the latches is formed with first and second apertures allowing operational access for respective interlock actuators responsive to the lid or cover of a vessel being in place as intended, to an interlock switch whereby electrical current is permitted to flow to the motor only when a vessel having one or other of the different base configurations is latched to the appliance and the vessel is safely closed by its lid or cover.

A can for containing a liquid having a top end is disclosed. The top end has (a) a dispense area defined by a first score line and (b) a pull tab coupled to the top end by a first rivet. The pull tab punctures the dispense area to open a dispense aperture upon lifting an actuating end of the pull tab. The top end has (c) a vent area defined by a second score line and (d) a secondary lever coupled to the top end by a second rivet, and has a puncturing end for puncturing the vent area to open a vent aperture upon lifting an opposite, actuating end of the secondary lever. The secondary lever and pull tab interlock so lifting the actuating end of the pull tab triggers lifting of the actuating end of the secondary lever, opening both dispensing and vent apertures in a single movement.

An interlock pipe joint includes a first and second tubular member. In some embodiments, an interrupted thread box and pin make up the interlock pipe joint. In other embodiments, a stepped interrupted thread box and pin make up the interlock pipe joint. In other embodiments, a twist-lock box and pin make up the interlock pipe joint. In some embodiments, an external or internal bushing is provided. In a method of operation, the first tubular member is inserted into the second tubular member by an axial insertion followed by a rotation to lock the pipe joint.

The invention provides a semi-automatic electronic block instrument and a working method of the block instrument. The block instrument is composed of a communication board, a collection board, a drive board, a monitoring board, a communication board and two logic control boards which are connected via a CAN (Controller Area Network) bus, wherein each logic control board comprises two CPUs (Central Processing Units) which are connected in parallel and a comparer; the collection board is composed of collection relays BSAJ, SGAJ, FUAJ and JSBJ which are connected in parallel; and the monitoring board is connected with a computer monitoring system. The two logic control boards of the block instrument form a double 2-vote-2 redundant system, and seven block signals are transmitted via a cable to realize communication among stations, so that the block instrument occupies a small space, has a stable system, is convenient to mount and is suitable for emergency rescue of railway signals; the block instrument is compatible with an existing railway signal interlock system so that digital communication among the stations is increased; automatic block among the stations is realized via a pre-reserved axle counting interface; the upgrading and reconstruction are convenient; the maintenance is convenient; the system has a self-diagnostic function; and the communication among the stations is realized via the cable so that the communication has strong anti-jamming capability and is difficult to damage.

The invention discloses a novel CPA device and a connector assembly with a novel CPA device. The invention aims to solve a technical problem that a CPA in a traditional electric connector has no structure which satisfies a high voltage interlock function. The novel CPA device comprises a bar-shaped main body part which comprises an upper rectangular opening and a lower rectangular opening. Two sides of the main body part are provided with guide bars. The upper end of the inner side of the main body part is provided with a suspension lock hanging nose. The middle of the inner side of the main body part is provided with a limit boss. The upper part of the outer side of the main body part is provided with a boss I, and a transition bridging inclined plane is arranged between the boss I and the suspension lock hanging nose. By using the above technical scheme, the time-sharing switch-on and switch-off of a high voltage power supply circuit and a lower voltage signal circuit are achieved, an operation delay function is realized, and the harm to an operator by high voltage is avoided.

An interlock system for actuating a switch to interrupt a flow of electrical current to a component of a domestic electrical appliance is described. The current is interrupted unless a sensor indicates that the appliance is in a safe condition, and the system includes a rod-like member which is turned about its own axis through at least a predetermined angle, when the appliance is safe, to actuate the switch to permit current to flow. The safe condition is typified by the secure placement of a lid or cover on a receptacle in a manner intended for operation of the appliance. Moreover, the lid or cover for the receptacle may be formed with an upstanding, chimney-like feed-tube through which food items can be added for processing in the receptacle, and a “pusher” device, sized to fit closely within the feed tube, is further provided, by means of which a user can urge foodstuffs into the receptacle for processing. In such circumstances, and where a feed-tube is of relatively wide dimensions is employed to enable relatively bulky food items to be added to the receptacle, the system senses not only that the lid or cover is in place, but also that a pusher device has been inserted into the feed-tube, before the switch can be actuated.

An improved method to detect and locate electrical faults is provided. A method of operating a circuit breaker in an electrical circuit configured with at least one of a first main circuit breaker at a first layer of circuit protection having a first direction of current flow, and at least one second circuit breaker downstream of said at least one first main circuit breaker having a second direction of current flow, and at least one third circuit breaker downstream of said at least one second circuit breaker having a third direction of current flow, wherein one of said at least one first, second, or third circuit breakers is in short time pick-up, is provided, and comprises steps to determine the location of the fault and adjust the trip time delay of the circuit breakers according to predetermined criteria.

A system and method of interlocking a plurality of electrical panel switches includes an interlock assembly having an interlock. The interlock has a first position that allows connection of one of utility power and power from an alternate power supply, such as a generator, to the electrical panel and prevents connection of the other of the utility power and generator power. The interlock has a second position that allows connection of the other of the utility power and generator power and prevents connection of one of the utility power and generator power to the electrical panel. The interlock also is constructed to control the positioning and sequence of operation of neutral connections between the power sources and the electrical panel.

An interlock system for use with casing running tools including, without limitation, casing running tools utilized with rig top drive systems. A pressure circuit is in communication with casing running tool slips and spider assembly slips. The pressure circuit controls the supply of pressure to: (1) release the spider slips only when the casing running tool slips are engaged and supporting the entire pipe string; and (2) release the casing running tool slips only when the spider slips are engaged and supporting the entire pipe string.

An elastic component and a forming method thereof, the elastic component is used for isolating vibration and/or sound transmission. The elastic member (20) includes a first part (24) having a suitable profile (26), a second part (28) made of deformable material (such as thermoplastic material), and elastic part (32) (such as rubber). During the molding process, the second part (28) is deformed so that its shape and size are consistent with the surface (25) of the first part (24). In a preferred embodiment, the second part (28) is plastically deformed and conforms to the contour (26) of the first part (24), thereby creating a mechanical interlock. This article introduces the rotation and translation interlocking of the component and the method of forming this interlocking.