A pet retractor includes a housing having an anchor, a rotary member rotatably engaged in the housing for engaging with a pet leash, a follower pivotally attached to the housing for engaging with the rotary member, a lever pivotally attached to the housing and having a knob engageable into and out of the housing, the lever includes a guide member engaged with the follower for pivoting the follower relative to the housing when the lever is pivoted relative to the housing and for actuating the hook of the follower to engage with and to be disengaged from the rotary member selectively, and a switch member is slidably engaged with the lever and engageable with the anchor for locking the lever and the follower and the switch member to the housing.

A coil deployment system and one or more methods of manipulating a coil deployment system, is provided. The coil deployment system has a trailer frame of one or more frame components including a pair of support brackets, a first pair of lower support arms, a second pair of lower support arms, a first pair of upper support arms, and a second pair of upper support arms. The trailer frame is adjustable such that the width and height of the trailer can be adjusted to manipulate and accommodate various sizes of coil drums of spoolable pipe deploy, collect, transport or store the spoolable pipe.

A fastening device including a case unit, a knob and an engaging unit is provided. The case unit includes a wall forming a receiving space and a plurality of mounting teeth. The knob covers on the case unit. The engaging unit is within the receiving space. The engaging unit corresponds to the mounting teeth and is selectively coupled to the knob. The knob is switched between a first position and a second position. When the knob is in the first position to couple to the engaging unit, the engaging unit is linked up with the knob and the engaging unit is engaged with the mounting teeth to prohibit the knob from rotating in a first direction, and when the knob is in the second position to disengage from the engaging unit, the engaging unit does not prohibit the knob from rotating in the first direction.

A chair (10) has a chair frame (20) with a seat base (22), a seat cushion (30) sized and adapted for removable placement in the seat base and a chair back (26), attached to the seat base. A cover assembly for use therewith has a web (32) of water-resistant material, with first and second ends (34, 36) and a biased, window-shade type spring roller (50), positioned in the seat base. The first end of the web of water resistant material is attached to the spring roller and the second end of the web of water resistant material is provided with means for removably attaching the second end to the chair frame. In a first, deployed condition, the web of water-resistant material extends across a top surface of the seat cushion; and in a second, non-deployed condition, the web of water-resistant material is rolled onto the biased, window-shade type spring roller.

A chair (10) has a chair frame (20) with a seat base (22), a seat cushion (30) sized and adapted for removable placement in the seat base and a chair back (26), attached to the seat base. A cover assembly for use therewith has a web (32) of water-resistant material, with first and second ends (34, 36) and a biased, window-shade type spring roller (50), positioned in the seat base. The first end of the web of water resistant material is attached to the spring roller and the second end of the web of water resistant material is provided with means for removably attaching the second end to the chair frame. In a first, deployed condition, the web of water-resistant material extends across a top surface of the seat cushion; and in a second, non-deployed condition, the web of water-resistant material is rolled onto the biased, window-shade type spring roller.

A rolling-unrolling device for a protective cover for covering a surface to be protected is presented. The device is self-propelling and includes a braking system for blocking the rotation of at least one drive wheel of the carriages and causing the cover to be automatically tensioned during the rolling up thereof on the roller tube. This braking system includes a movable pawl integral with each of the carriages, and a ratchet wheel integral with the drive wheel of each of the carriages, such that, in the direction of rotation corresponding to the unrolling of the cover, the pawl is not engaged with the ratchet wheel and the braking system is in the passive position, and in the opposite direction of rotation corresponding to the rolling up of the cover, the pawl is engaged with the ratchet wheel and the braking system is in the active position.

A reel assembly for deploying a cable, hose or umbilical connection may include an electronic control unit that may operate to control an electric motor that drives the reel assembly. The electric motor may include a closed-loop feedback control system. A sheave that redirects the direction of the cable, hose or umbilical connection may include sensors that may measure various parameters, such as a measured line tension, and transmit the measured data to the electronic control unit. The electronic control unit may, based on received sensor data, automatically direct the operation of the reel assembly. Optionally, the sensor data and/or user control inputs and system status information may be logged. The system also may use this data to control the system, such as by activating an alarm when a certain alarm limit is exceeded by the data, adjusting parameters of the drive, and the like.

A reel assembly for deploying a cable, hose or umbilical connection may include an electronic control unit that may operate to control the reel assembly. A sheave that redirects the direction of the cable, hose or umbilical connection may include sensors that may measure various parameters, such as a measured line tension and/or a length of cable, hose or umbilical connection that has been deployed, and transmit the measured data to the electronic control unit. The electronic control unit may, based on received sensor data, automatically direct the operation of the reel assembly. Optionally, the sensor data and/or user control inputs and system status information may be logged. The system also may use this data to control the system, such as by activating an alarm when a certain alarm limit is exceeded by the data, adjusting parameters of the drive, and the like.

The present disclosure is directed to overhead door assemblies and operating systems. Disclosed herein is a drive drum that is compatible across a variety of overhead door types, including, for example, standard lift doors, vertical lift doors, and high lift doors. The drive drum of the present disclosure comprises a first cable groove section and a second cable groove section, opposite the first cable groove section, wherein at least one of the first cable groove section or the second cable groove section is in a non-linear graduated arrangement.

A unidirectional wire take-up mechanism includes a fixing seat, a reel, a spindle, a unidirectional bearing, a bearing sleeve, a damping bounce member, and a positioning shaft. When the curtain is pulled down, the unidirectional bearing is locked, and the reel links the spindle through the bearing sleeve to rotate counterclockwise. When the spindle is rotated, the spindle and the damping bounce member generate a frictional force to form a damping effect, thereby providing a reaction force when the wire is released and offsetting part of the gravity of the curtain and effectively slowing down the speed and impact force when the curtain falls. When the curtain is rolled up, the reel links the bearing sleeve to rotate clockwise relative to the spindle, and the spindle and the damping bounce member have no relative movement, and the rotation has no resistance.