113results about How to "Keep it tight" patented technology

A blind comprises a turnably supported pulley, a control member of which one end is connected to the pulley so as to permit the control member to be wound around and unwound from the pulley, an urging member which urges the pulley in the direction of winding the control member, a first clutch mechanism which is disposed between the rotation shaft and the pulley, and can selectively link the pulley and the rotation shaft with each other to transmit the rotation of the pulley to the rotation shaft or unlink the pulley and the rotation shaft from each other to interrupt the transmission of the rotation of the pulley to the rotation shaft, and a second clutch mechanism which can selectively link the rotation shaft and a fixed member with each other or unlink them from each other.

An antenna tower and support structure for use with an antenna tower, which allow a number of antennas or antenna panels to be mounted thereto, while maintaining the compactness of the overall structure and still providing high strength, such as is needed to resist high winds. The antenna tower includes an antenna support structure mounted to the antenna mast for supporting one or more antennas or antenna panels. The antenna support structure includes a bottom plate for mounting to the mast (or to another antenna support structure) and a top plate spaced from bottom plate. A beam with multiple webs extends between the bottom plate and the top plate. The beam includes a central post and a number of stiffening webs extending generally radially outwardly from the central post. The stiffening webs help to provide substantially greater stiffness against flexure and bending, without making the overall structure larger (or not much larger effectively). In this way, an antenna tower can be constructed that meets the competing needs of great structural rigidity and compactness.

A hand-held power tool has a motor output shaft, a tool driver, a torque-limiting unit with which a maximum torque transferred from the motor output shaft to the tool driver is adjustable by an operator; an actuating element that adjusts the torque-limiting unit, and a retaining element with a spring element, wherein the retaining element holds the adjusting element in a position set by the operator, and a spring element exerts a retaining force directed in an axial direction of the tool driver.

A retaining tool with rotational locating device includes a main frame and a locator. The main frame provides a first lock part at an end thereof. The locator rotationally inserts through the main frame next to the other end thereof. The locator further includes an adjustable unit and a locking unit attached to the adjustable unit. The locking unit has a second lock part at the lower section thereof corresponding to the first lock part. The lock parts engage with an object and the locking unit with the second lock part is capable of moving vertically in case of the adjustable unit being turned horizontally. The object is forced to keep contact other objects tightly or to release from contacting other objects.

The lock comprises a frame (5), at least one bolt (4), in particular a latch bolt which projects in a predetermined direction out of the frame, a bolt operating mechanism (26, 31, 32) and means (20, 24) for mounting at least one hand operated actuating element (21) for said bolt operating mechanism on the frame so that this actuating element can rotate on the frame according to a rotation axis (25) extending in particular perpendicular to said predetermined direction. The bolt (4) comprises a shaft portion (38) and at least one laterally projecting lock wing (39) and is rotatably mounted on the frame according to a further rotation axis (37) extending in said predetermined direction, the bolt operating mechanism being arranged to rotate the bolt (4) between a first angular orientation, wherein the lock wing (39) of the bolt is in the locking position, and a second angular orientation, wherein the lock wing of the bolt is in the unlocking position.

In a vehicle exhaust apparatus constituting an exhaust passage to an exhaust muffler from a plurality of exhaust pipes connected to a multi-cylinder engine, an expansion chamber is formed along the exhaust passage and is connected to an exhaust collector portion. The expansion chamber is formed so as to expand outward from the exhaust collector portion in a substantially arc or chevron shape when viewed from a direction substantially orthogonal to an exhaust gasflow. Preferably, the expansion chamber is formed in a spherical shape and plural branched exhaust pipes are formed on the exhaust gas downstream side of the expansion chamber.

The adjustable self-closing hinge (1) comprises a first hinge part (2), a second hinge part (3), a hinge shaft (10), a torsion spring (18) having a first end (19) fixed with respect to the first hinge part (2) and a second end (20) fixed with respect to the hinge shaft (10) to exert a moment onto the first hinge part, and means for adjusting the moment exerted by the torsion spring on the first hinge part. These adjusting means comprise a coupling element (21) which is interposed between the first end (19) of the torsion spring (18) and the first hinge part (2) and which is rotatably mounted in the first hinge part, and a screw-like element (24) which is rotatably mounted in the first hinge part (2) and which is arranged to cooperate with the coupling element (21) to rotate the coupling element with respect to the first hinge part so as to adjust the moment exerted by the torsion spring on the first hinge part.

A method and device for feeding at least one receiving surface between two consecutive stations in a production line for handling products on an assembly line, the device having a pick-up zone from where the products are transferred to the surface, and including an input conveyor to receive and maintain a compact flow of products received from an upstream station, a receiving conveyor, extending along a conveying direction in the pick-up zone to receive and then stop the flow of products there delivered by the input conveyor, an a transfer unit, to move, transversely to the conveying direction, toward the receiving surface, the products stopped in the pick-up zone. The device further includes at least one buffer conveying element, able to receive the compact flow of products from the input conveyor when the products are stopped on the receiving conveyor for their transfer, and maintain the compactness of the flow.

The present invention is directed to a compact balun device that includes an unbalanced port and a set of balanced differential ports. A first set of coupled transmission line structures is coupled to the unbalanced port and one port of the set of balanced differential ports. The first set of coupled transmission line structures is characterized by at least one device parameter and a first length that is substantially equal to a quarter of a wavelength (λ). The wavelength (λ) corresponds to a first frequency. A second set of coupled transmission line structures is coupled to another port of the set of balanced differential ports. The second set of coupled transmission line structures is characterized by the at least one device parameter and a second length that is substantially equal to the quarter of a wavelength (λ). The wavelength (λ) corresponds to the first frequency. A plurality of interconnections couples the first set of coupled transmission line structures and the second set of coupled transmission line structures. The plurality of interconnections are configured such that the compact balun operates at a reduced operating frequency, the reduced operating frequency being selected from a range of frequencies by varying at least one device parameter. The range of frequencies is approximately between one-sixth of the first frequency and one-half the first frequency.

A storage bag that can maintain compactness, into which an object can be easily inserted and stored, and whose shape can be changed after the object is stored in the storage bag. A storage bag including a cylindrical body and a bottom at one end of the body, wherein the bottom closes one end of the body, the other open end of the body is formed as a storage opening, and the inside space of the storage bag is formed as a storage space capable of storing an object, and wherein the body is made of fabric in which fibers are woven in perpendicular directions, and the fiber directions A and B in the fabric are inclined with respect to the circumferential direction and the lengthwise direction of the body.

This invention provides an optical imaging lens assembly, in order from an object side toward an image side including: a first lens element with positive refractive power having a convex object-side surface, a second lens element with negative refractive power having a concave object-side surface and a concave image-side surface, a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface, a fourth lens element with negative refractive power having a concave image-side surface, and the two surfaces being aspheric; wherein the optical imaging lens assembly further comprises an aperture stop disposed between an imaged object and the first lens element, and there are four lens elements with refractive power.

A sliding mechanism is provided to couple slidably a first housing having on its surface a vertically long liquid crystal display part long in the vertical direction to a second housing having on its surface an operating part. This slide mechanism includes a rail part which is mounted on the surface of the second housing in a manner of extending in the vertical direction and is configured such that when the first housing has slidingly moved by means of the slide mechanism to the upper end side of the second housing, the operating part of the second housing will appear. Further, by means of the cam mechanism (support mechanism), the first housing is supported relative to the second housing in a switchable manner between the vertically long state and the horizontally long state.

A cable holder is provided with an attachment portion to be attached to a strap retainer of a portable device, and a holder plate portion having a plurality of supporting projections. The attachment portion is provided with at least one claw to engage with the strap retainer. The claw elastically deforms for attaching / detaching the cable holder. A cable hole for inserting the cable is formed between two contiguous supporting projections. The cable is threaded in the cable hole between the supporting projections. With friction between the supporting projections and the cable, the cable is prevented from being unplugged.

A cotton harvester row unit having discharge door structure includes first and second high pressure air outlets offset in the fore-and-aft direction from each other. A first vertical tube is connected to an upper air supply conduit and extends downwardly and opens rearwardly near the front of the unit to direct air towards the door structure outlet. A second vertical tube which extends downwardly near the rear of the unit and opens towards the outlet is connected to the air supply conduit to direct a sweeping blast of air towards the outlet near the floor of the door structure where plugging is a problem.

A connector characterized in that it: is a connector that has a plurality of plate-shaped terminals that include openings able to enclose protruding terminals of the other half of the connector, and that mates with the other half of the connector. The openings comprise a wide portion, a narrow portion and a transitional portion that transitions from the wide portion to the narrow portion, and, in a top view, are provided with a first shape that is left-right asymmetric with respect to the centerline of the plate-shaped terminals, or a second shape whereby the first shape is inverted about the centerline. The plate-shaped terminals are arrayed lined up in the width direction of the connector, and arrayed such that the plate-shaped terminals comprising an opening having the first shape and the plate-shaped terminals comprising an opening having the second shape alternate.

A detection head includes a plurality of detection array portions that are arranged in a direction along which the head is relatively displaceable. Position signals indicating a position of the detection head are calculated from output signals output from the detection array portions. In order to combine the position signals with one another and determine the position of the detection head with respect to the scale, weighting according to a level of the output signal is performed on the position signal of each of the detection array portions, and the weighted position signals are averaged.