A casement window operator includes a linear input mechanism configured to be mounted to a stationary frame of a casement window, a linear to rotary motion converter operably coupled to an output of the linear input mechanism, a gear reducer operably coupled to an output of the rotary motion converter, and a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer. The sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window.

A casement window operator includes a linear input mechanism configured to be mounted to a stationary frame of a casement window, a linear to rotary motion converter operably coupled to an output of the linear input mechanism, a gear reducer operably coupled to an output of the rotary motion converter, and a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer. The sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window.

A side-open left-right-door arbitrary-opening structure of a refrigerator comprises four hinge shafts are fixedly connected at left and right sides of a refrigerator body in pairs respectively, left and right sides of upper and lower end faces of a refrigerator door are all provided with an opening neck, each hinge shaft is correspondingly placed in one opening neck, four hinge shaft stoppers are slidably arranged on the upper and lower end faces of the refrigerator door in pairs respectively, one spring is arranged between two hinge shaft stoppers in each pair, tail ends of the hinge shaft stoppers on the upper and lower end faces of the refrigerator door extend into the opening necks at the corresponding sides, and the hinge shafts at the corresponding sides are positioned in the opening necks.

An operator assembly may move a window vent relative to a frame. The operator assembly includes a stationary member, an arm and a drive member. The arm is mounted for rotation relative to the stationary member between an open position and a closed position. The drive member is received in a channel defined by the stationary member for linear motion therein relative to the stationary member and the arm among a first position in which the drive member engages a locking feature of the window vent, a second position in which the drive member is spaced apart from and disengaged from the locking feature without rotating the arm out of the closed position, and a third position in which the drive member is further spaced apart from the locking feature. Movement of the drive member between the second and third positions moves the arm between the closed and open positions.

An operator assembly may move a window vent relative to a frame. The operator assembly includes a stationary member, an arm and a drive member. The arm is mounted for rotation relative to the stationary member between an open position and a closed position. The drive member is received in a channel defined by the stationary member for linear motion therein relative to the stationary member and the arm among a first position in which the drive member engages a locking feature of the window vent, a second position in which the drive member is spaced apart from and disengaged from the locking feature without rotating the arm out of the closed position, and a third position in which the drive member is further spaced apart from the locking feature. Movement of the drive member between the second and third positions moves the arm between the closed and open positions.

A refrigerator equipped with a door opening device that can be triggered to facilitate door opening when a door handle is moved by a user in either of the two permitted opposite directions. A first link member is coupled to the door handle and can be rotated in the same direction as the door handle. A second link member is coupled to the first link member. The second link member is configured to be rotated by the first link member when the door handle is rotated in one direction, and to remain stationary when the door handle is rotated in another direction. When door handle is rotated, the first or the second link member can cause a slide member to slide out of the refrigerator door partially to press against the main body, thereby opening the door.

A refrigerator equipped with a door opening device that can be triggered to facilitate door opening when a door handle is moved by a user in either of the two permitted opposite directions. A first link member is coupled to the door handle and can be rotated in the same direction as the door handle. A second link member is coupled to the first link member. The second link member is configured to be rotated by the first link member when the door handle is rotated in one direction, and to remain stationary when the door handle is rotated in another direction. When door handle is rotated, the first or the second link member can cause a slide member to slide out of the refrigerator door partially to press against the main body, thereby opening the door.

A building closure operator includes an operator arm pivotable about an arm axis from an arm closed position to an arm open position, an arm lock actuatable to lock the arm in different locked positions and releasable to release the arm, and an articulatable lever pivotable about a lever axis parallel to the arm axis, from a lever home position corresponding to the arm closed position, to a lever actuated position corresponding to the arm open position. The lever includes a lever coupling maintainable in the lever actuated position, and a lever handle pivotable with respect to the lever coupling back to the home position to actuate the arm lock to lock the arm in one of the different locked positions.

A building closure operator includes an operator arm pivotable about an arm axis from an arm closed position to an arm open position, an arm lock actuatable to lock the arm in different locked positions and releasable to release the arm, and an articulatable lever pivotable about a lever axis parallel to the arm axis, from a lever home position corresponding to the arm closed position, to a lever actuated position corresponding to the arm open position. The lever includes a lever coupling maintainable in the lever actuated position, and a lever handle pivotable with respect to the lever coupling back to the home position to actuate the arm lock to lock the arm in one of the different locked positions.

A door control system for a farm implement with a storage bin having a discharge opening and a door movable by a drive mechanism between open and closed positions relative to the discharge opening includes a dual position door control system. The system includes at least two controllers at spaced positions relative to the door and coupled to a drive mechanism for opening and closing the door.