A device for fastening a planar object to a construction, including a first holding element and a second holding element which can be interlockingly connected to the first holding element. The first holding element, which can be connected to the construction or to the object or is an integral part of the construction or of the object, has a C- or U-shaped inner profile, in that the second holding element, which can be connected to the object or the construction or is an integral part of the object or the construction, has a C- or U-shaped outer profile, and in that the C- or U-shaped outer profile can be interlockingly accommodated in the inner profile and can be clamped against the inner profile by means of a clamping element.

A device for fastening a planar object to a construction, including a first holding element and a second holding element which can be interlockingly connected to the first holding element. The first holding element, which can be connected to the construction or to the object or is an integral part of the construction or of the object, has a C- or U-shaped inner profile, in that the second holding element, which can be connected to the object or the construction or is an integral part of the object or the construction, has a C- or U-shaped outer profile, and in that the C- or U-shaped outer profile can be interlockingly accommodated in the inner profile and can be clamped against the inner profile by means of a clamping element.

A hanger-rod clip can be configured for use with a strut that at least partially surrounds a hanger rod to provide stiffness to the hanger rod. The hanger-rod clip can include a handle portion and a rod-clamping portion. The rod-clamping portion can be configured to urge the hanger rod into engagement with an internal surface of the strut as the handle portion is moved towards the strut.

A hanger-rod clip can be configured for use with a strut that at least partially surrounds a hanger rod to provide stiffness to the hanger rod. The hanger-rod clip can include a handle portion and a rod-clamping portion. The rod-clamping portion can be configured to urge the hanger rod into engagement with an internal surface of the strut as the handle portion is moved towards the strut.

A connecting apparatus includes a main body having a first half member and a second half member; the second ends of the two half members configured to open or close relatively to each other; an accommodating cavity formed between the first and second half members; a driving member and an actuating member installed inside the accommodating cavity; the driving member capable of driving the actuating member to move toward the second ends of the two half members to an opened position, thereby expanding the second ends of the two half members outward. The connecting apparatus is installed inside an elongated member, and latch portions on the second ends of the two half members are able to latch onto another elongated member to achieve a connection between elongated members.

The invention relates to a retainer which can be fastened to a stand (1), having two jaws (2) which enclose the stand (1) in a clip-like manner and are guided displaceably relative to one another perpendicularly to their butt face (3) and, on the ends forming the butt faces (3), have connecting shoulders (4) which are opposite one another in pairs. In order to create advantageous design conditions, it is proposed that the connecting shoulders (4) form, on the side thereof facing away from the butt face (3), wedge faces (5) extending inclined relative to each other and each interact with a clamping shoe (8) surrounding the wedge-shaped connecting shoulders (4) in a wedge-shaped socket (9), and that the two jaws (2) each comprise, on the inside thereof, a guide ridge (6) which protrudes beyond the butt face (3) towards the other jaw (2) and engages in a guide groove (7) of the other jaw (2).

The invention relates to a retainer which can be fastened to a stand (1), having two jaws (2) which enclose the stand (1) in a clip-like manner and are guided displaceably relative to one another perpendicularly to their butt face (3) and, on the ends forming the butt faces (3), have connecting shoulders (4) which are opposite one another in pairs. In order to create advantageous design conditions, it is proposed that the connecting shoulders (4) form, on the side thereof facing away from the butt face (3), wedge faces (5) extending inclined relative to each other and each interact with a clamping shoe (8) surrounding the wedge-shaped connecting shoulders (4) in a wedge-shaped socket (9), and that the two jaws (2) each comprise, on the inside thereof, a guide ridge (6) which protrudes beyond the butt face (3) towards the other jaw (2) and engages in a guide groove (7) of the other jaw (2).

A joint exhibits high tensile strength. The joint includes a solid rod having a slit or opening into which a wedge is inserted. The rod and wedge are inserted into a fitting. Only a small amount of adhesive material is applied between the fitting and the rod. The adhesive material may be blended with non-adhesive, non-compressible “beads” that have a preferred diameter in order to insure that the desired adhesive thickness is achieved between the fitting and the rod. The internal surface of the fitting has a contour which continuously and nonlinearly varies with distance along the fitting. The wedge has a dimension having a similar contour. The shape of the contour can be described by a polynomial of order two or higher. The joint can be used to construct a sucker rod for an oil well, or it can be used in other applications. The joint can support high tensile loads, over long distances, while occupying a very narrow tubing bore.

A releasable clamping device is provided. The device includes a plurality of wedge members that slidably are disposed upon a carrier, with an input disposed in conjunction with a first wedge member. The input interacts with a projection and when the input is moved the first wedge members slides along the carrier. Motion of the first wedge member causes vertical motion of the second and fourth wedge members, which in combination cause the thickness of the releasable clamping device to increase, which frictionally retains the carrier and associated components thereon (such as a PCB) within a housing. The input may be moved in an opposite direction which causes the first wedge member to slide along the carrier in an opposite direction and causes the second and fourth wedge members to vertically move toward the carrier thereby narrowing the overall thickness of the device to allow removal of the carrier.

A releasable clamping device is provided. The device includes a plurality of wedge members that slidably are disposed upon a carrier, with an input disposed in conjunction with a first wedge member. The input interacts with a projection and when the input is moved the first wedge members slides along the carrier. Motion of the first wedge member causes vertical motion of the second and fourth wedge members, which in combination cause the thickness of the releasable clamping device to increase, which frictionally retains the carrier and associated components thereon (such as a PCB) within a housing. The input may be moved in an opposite direction which causes the first wedge member to slide along the carrier in an opposite direction and causes the second and fourth wedge members to vertically move toward the carrier thereby narrowing the overall thickness of the device to allow removal of the carrier.