A breathing assistance apparatus has a lid and latch assembly configured for one-handed operation. The apparatus also includes a hinge assembly that separates when over-rotated but that reengages upon closing of the lid onto the main body of the apparatus.

A releasable hinge assembly includes a mounting bracket, a hinge bracket, and at least one spring biased locking mechanism. The mounting bracket having a first mounting plate and two pin tabs extending therefrom, at least one of the pin tabs defining a through hole therein. The hinge bracket having a second mounting plate and a knuckle extending therefrom. The knuckle defining at least one cutout that is being L-shaped. The at least one spring biased locking mechanism having a pawl arm and a pin. The at least one locking mechanism positioned within the a channel of the hinge bracket with the pawl arm positioned within and projecting from the at least one cutout. The pawl arm configured to move within the at least one cutout to push the pin beyond a second end of the knuckle and through a through hole defined in the pin tab of the mounting bracket.

The present disclosure provides a hinge, such as for housings for devices, such as a split-core current transformer. The housings can include hinges and housing parts to be rotatably coupled together at such hinges that can be injection molded. A hinge of a housing can include a first knuckle and a second knuckle, which can be integrally formed with or coupled to a first housing part and each are configured to receive an end of a hinge pin. One of the knuckles includes a knuckle slot to provide radial access for a cut-away portion of a hinge pin to pass through. At assembly of the first housing part to a second housing part, a first hinge pin end is to be disposed within an opening of the first knuckle and a second hinge pin end is to be disposed within the second knuckle after passage of the key portion through the knuckle slot of the second knuckle.

A releasable hinge system having a first component having a circular hinge pin and an arcuate guide fixed thereto. The system further includes a second component having a u-shaped member having an annular groove concentric with and matingly received by the hinge pin. The second component also has an arcuate channel received by the arcuate guide. The method of assembling a hinge includes the steps of providing a first component having a hinge pin and an arcuate guide. The method further includes the step of providing a second component having a u-shaped member having an annular groove concentric with the hinge pin. The second component having an arcuate channel. The method also includes the steps of orienting the first and second components at an angle of 60° relative to each other, causing the u-shaped member to receive the hinge pin, and enabling the second component to rotate within the annular groove about the hinge pin.

A vehicle door lock device includes: a housing having an opening; a coupling member configured to be coupled to an operation mechanism arranged on a door; an operation lever arranged inside the housing and coupled to the coupling member through the opening; and a cover capable of opening and closing the opening and a coupling point between the coupling member and the operation lever. The cover is separate from the housing and assembled to the housing to be mountable on and demountable from the housing and rotatable between opened and closed states. Each of the housing and the cover includes: a temporary retaining mechanism to temporarily retain the cover in the opened state when the cover is assembled to the housing in a rotatable manner; and a full retaining mechanism configured to retain the cover in the closed state when the cover is rotatably assembled to the housing.

A control device is used to move a pick-up truck tailgate. The control device comprises a first gear arrangement connected to a drive cup and a second gear arrangement that is connected to a motor for driving the second gear arrangement. The control device also includes a clutch arrangement positioned between the first and second gear arrangements. When the clutch arrangement is in an engaged position, it couples the first gear arrangement and the second gear arrangement to transmit torque to the first gear arrangement and the drive cup. When the clutch arrangement is in the disengaged position, the first and second gear arrangements are not coupled. Optionally, the control device comprises a brake unit to slow or stop movement of the tailgate. The control device can be positioned within the pick-up truck tailgate.

An enhanced hinge and method pivotally and removably connects a member from a structure. In one example, the hinge and method retains the member using a first hinge piece coupled to the structure and a second hinge piece coupled to the member. The first and second hinge pieces may be configured such that the second hinge piece is retained inside the first hinge piece in a closed position and is not free to be decoupled from the first hinge piece but is free to pivot to an open position at the closed position. At the open position the second hinge piece is inverted as compared to its position in the closed position, is free to pass through the first hinge piece and is free to be decoupled from the first hinge piece.

An electrical connection box includes a housing member, a first cover member, a second cover member, a hinge structure between the first and the second cover members, and a detachment prevention structure that disables detachment of the second cover member from the first cover member. The hinge structure includes a rotation shaft of the first cover member, a bearing of the second cover member, and a through hole in the first cover member. The through hole allows the bearing to be inserted from a free end and move in a direction that intersects an insertion direction of the bearing and is perpendicular to the axial direction of the rotation shaft to be fitted to the rotation shaft. The detachment prevention structure includes a rotational retaining section of the bearing and a retainer of the housing member.

A hinge for use in a billboard framing system comprising a stationary plate and a rotating plate. The hinge has a curved recess and motion limiting track in the stationary plate that retain a mating feature on the rotating plate. A load distribution feature on the first plate conforms to and contacts an exterior surface on the rotating plate in the open position.

A door hinge assembly includes a hinge plate and a mounting shaft. The hinge plate includes a mounting plate, a reinforcing plate, and a connecting hook. The reinforcing plate and the connecting hook are each assembled on the mounting plate. The connecting hook is pivotally connected to the mounting shaft. The door hinge assembly further includes a positioning member, and the positioning member is configured to be capable of positioning the mounting plate and/or the reinforcing plate to a cabinet or a door. By providing the positioning member capable of positioning the hinge plate to the cabinet or the door, when the hinge plate is mounted, the hinge plate may first be positioned to the cabinet or the door by the positioning member, and then the hinge plate is tightened by a fastener, so that the assembly efficiency of the door hinge assembly may be increased.