4185 results about "Stops device" patented technology

A power line de-icing apparatus which is installed onto a power line without the need for disconnecting the power line. A temperature sensor and an ice sensor on the apparatus automatically activate the de-icing mode of operation. An internal motor and drive wheel move the apparatus along the power line in both directions, one direction at a time. Heaters and chisels on the apparatus remove any ice on the power line in one direction at a time. Power for the apparatus is generated from the electrical power carried by the power line using transformers. Proximity sensors on the apparatus detect stopping devices placed on the power line to stop the motion of the apparatus.

A quick-detachable blade guard mounting structure. The structure includes a mounting frame, a holding down member defining with one side of the mounting frame, a gap, a blade guard holder member insertable into the gap, a stop device adapted for stopping the blade guard holder member in the gap, a lever pivoted to the holding down member and adapted for moving between a first position to unlock the blade guard holder member and a second position to lock the blade guard holder member.

Variable tension footwear lacing systems and methods permit and facilitate adjustment of selected zones by a user. In an embodiment, stop devices are used with a footwear lacing system to prevent opposing closure edges of a footwear article from advancing towards each other. The stop device includes a stop guide configured for fastening to a portion of the footwear article, and a stop element. In an implementation, the stop element includes a stop head and a releasable affixing member. The stop head is configured to be manipulated by a user to releasably secure the affixing member to a selected position across the length of the stop guide. The stop head is operable to contact a first closure edge of the footwear article. In an embodiment, during use first and second stop devices contact first and second opposing closure edges of the footwear article and prevent them from advancing towards each other.

Percolating device, for example intended to equip a coffee machine, comprising a percolating chamber mounted in such a way that it can carry out a displacement in the vertical direction when a control handle is operated. A cap receiving a capsule of product to be infused is also displaced, when the handle is operated, towards the inside of the percolating chamber. A percolating head sliding freely inside the percolating chamber can occupy different relative positions inside the percolating chamber according to the size of the capsule loaded into the cap. A stop device makes it possible to lock the percolating head in a definite position in order to inject steam and / or water through the percolating head.

A clamp apparatus for selectively occluding a resilient tube to prevent free flow of fluid in the tube. The device comprises a base member to which the resilient IV tube is attached or through which it passes, and a slide clamp that slides relative to the base member and relative to the tube. The aperture in the slide clamp has a relatively open hole at one end, through which the tube passes when the slide clamp is an open position, allowing fluid to flow through the tube. The aperture also has a relatively constricted slot at the other end, through which the tube passes when the slide clamp is in the occluding position, preventing fluid flow through the tube. A deflectable cantilevered locking arm on the base interlocks with a detent on the slide clamp to lock the slide clamp at the occluding position to avoid inadvertent free flow. A release tab that is used to release the locking arm from the slide clamp is located off center to avoid inadvertent activation. The deflectable arm is unstressed when the slide clamp is in either the occluding or the open positions. A stop device prevents over-stressing the release tab when it is moved. In one embodiment, the clamp apparatus may be slid along the IV tube to a desired location.

A brake mechanism (10) for an elevator (2) is activated in response to an electronic control signal to prevent movement of an elevator car (16) under predetermined conditions. The brake mechanism is preferably a safety mechanism (10) and does not require a governor sheave, a governor rope, or a tension sheave. The safety mechanism in one disclosed example utilizes a solenoid actuator (22b) and an electric motor (40) and gear box assembly (42) to move safety wedges (18) into engagement with a guide rail (20) to stop the elevator car (16). The safety wedges (18) are held in a non-deployed position during normal elevator operation. If there is a power loss or if elevator car speed exceeds a predetermined threshold, an electronic control signal activates the safety mechanism (10) causing the solenoid to release, which causes the safety wedges (18) move in a direction opposite to that of a safety housing (12) mounted for movement with the elevator car (16). Angled surfaces of the safety housing (12) force the safety wedges (18) into engagement with the guide rail (20). The safety mechanism (10) can be selectively reset from a remote location.

A safety system for supervising safety of an elevator may include a safety space in an elevator shaft, elevator buffers in the elevator shaft, or both; measuring means for continuous measurement of absolute position of an elevator car; and a safety device. If the safety system includes the safety space, its size may be reduced. If the safety system includes the elevator buffers, their size may be reduced. The safety device may be adapted to receive data about the absolute position of the elevator car; calculate a velocity of the elevator car at each instant of time using the absolute position; monitor the calculated velocity in order to ensure that the calculated velocity remains within an allowed motion limit curve; and control at least one stopping device for stopping uncontrolled motion of the elevator car if the calculated velocity exceeds the allowed motion limit curve.

The present invention is directed to a power tool including a wireless remote stop for terminating the flow of electricity to an electric motor. The electric motor is configured for operating a working element assembly of a power tool, such as an arbor / circular saw blade included a table saw. In an embodiment, a remote stop is a hand-held fob, having a housing and a button. Alternatively, the remote stop may be implemented as a foot pedal apparatus, for being disposed on a shop floor.

A light source apparatus for an electronic endoscope includes a light source; a rotary shutter including a pair of coaxial aperture controlling rotary plates, which are selectively rotatable relative to and together with each other and each includes light interception portions and opening portions, wherein a combined opening angle of the opening portions is varied by a relative rotation of the aperture controlling rotary plates, and the amount of emitted light is controlled by varying the combined opening angle, and the controlled amount of the light is emitted through the rotary shutter by integral rotation of the aperture controlling rotary plates; and a mechanical stop device, positioned between the aperture controlling rotary plates, for limiting the range of relative rotation angle between the aperture controlling rotary plates from a maximum opening angle to a minimum opening angle.

The invention relates to an opening-closing mechanism with self-locking devices. The opening-closing mechanism comprises a base plate, a fairing, fairing supporting arms and power source pushing air cylinders. A rotary shaft is arranged on the base plate, one ends of the fairing supporting arms are installed on the rotary shaft in a sleeved mode, the other ends of the fairing supporting arms are connected with the fairing through fairing installation bases, the fairing is provided with closed-state limiting stop devices, open-state limiting stop devices are arranged between the fairing supporting arms and the fairing installation bases, the locking devices are arranged between the fairing supporting arms and the power source pushing air cylinders, one ends of the locking devices can move in sliding grooves of the fairing supporting arms, and the other ends of the locking devices are installed on the power source pushing air cylinders. The opening-closing mechanism is simple and reliable in structure, low in cost, high in stability and convenient to overhaul, one power source is used for achieving opening and closing the opening-closing mechanism, mechanical self locking is generated in a dead point mode, the opening-closing mechanism is locked to be kept in a set state, and an extra power source is not required to be arranged.

An elevator safety arrangement and a method for implementing safety spaces in an elevator has a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. According to the method of the invention, detectors in the electric safety system are read by an electric safety controller and, when a functional deviation is detected, one or more stopping devices are actuated to bring the elevator system into a safe operating state.