165results about "Deformable fasteners" patented technology

A self-anchoring fastening device for installation in supports for hanging pipes wires or other articles in ceilings is shaped for a socket to drive the device for an easy installation process. The device comprises a collapsible anchoring portion having radially expanding anchoring strips, which will not pull out of a hole drilled in a support. A drill drills a hole in a support and an expandable anchor is inserted through the hole. Threads internal to the expandable anchor cooperate with threads on a screw inserted therein to collapse the expandable anchor, providing anchoring strips over the hole such that the expandable anchor cannot be pulled out of the hole. A threaded portion of the base of the screw is suitable for attaching the article to be hung. The base may be a swivel head type. The drill may be on the expendable anchor assembly.

A fastener is provided. In another aspect, a fastener is made of layers of material, a light curable material and / or multiple built-up materials. Another aspect uses a three-dimensional printing machine to emit material from an ink jet printing head to build up a fastener.

The present invention provides a blind bolt fastener having a core bolt. The core bolt has a threaded portion and a non-threaded portion engaging a deformable sleeve and a body. A protrusion extends from the sleeve or the body to engage a groove in the core bolt to prevent axial movement of the core bolt with respect to the body and the sleeve. An optional drive nut is positioned between a head of the body and wrenching flats of the core bolt. The drive nut has protrusions engaging mating members in the head of the body.

A vibration resistant fastening system including a high fatigue strength bolt made from a first material and a nut made from a second material that is softer than the first material of the bolt. The bolt includes bolt threads and the nut includes pre-tapped nut threads that match with the bolt threads. The fastening system utilizes a combination of unique geometry of the nut and bolt threads and a hardness differential between the nut and bolt to provide vibration resistance. When tightened, crests of the bolt threads embed into the soft bearing flanks of the nut threads. Simultaneously with the bolt crest embedment, the softer nut thread crests flow radially inward into the root radius of the bolt threads. This complete contact between the nut and the bolt restricts the nut from moving in a transverse direction relative to a longitudinal axis of the bolt.

A blind fastener for securing a plurality of workpieces is disclosed. The blind fastener comprises several components, a core bolt, a body sleeve member and a buckle sleeve member. The core bolt includes a tool engaging portion to engage the head of a driver on a installation tool. The buckle sleeve member has a buckle portion designed to create a bulb fastening the workpieces together. In some embodiments, a the buckle portion is locally annealed to promote formation of a blind side bulb. A nose assembly with a matching anti-rotation engagement to the head of the body sleeve member is also disclosed.

A snap lock separatory panel and retainer system includes either a screen wire panel with laterally spaced, longitudinally extending locking bars defining a locking profile, or a urethane panel with laterally spaced, longitudinally extending lips or flanges which also define a locking profile. A retainer system is provided for use in securing these panels. The retainer system utilized center retainers that are engagable with industry standard holes in screen stringer rails of a vibrating separating machine. Each center retainer is provided with an array of retainer pins which are spaced to interdigitate with either screen wire tie rod ends or with urethane panel wall recesses to support the screen panel locking bars or the urethane panel flanges adjacent the retainer pins. Locking strips are provided with undercurrent bores that terminate in undercut receptacles. These bores and receptacles are sized to receive center retainer pin shanks and heads. The locking strips and center retainers cooperate to positively secure the snap lock screen wire panels and / or urethane panels in place on a vibrating separatory machine.

A screw-plastic part unit in which the plastic part can be a guide having a tapered bottom end for fitting into a countersink to center the tip end of the screw in the countersink and also can have at least one cut-out portion at its top end to facilitate fracturing of the guide as the screw is threaded into a base member. In one embodiment the screw has a thread between its head and tip end which extends to near the tip end leaving a clear area between the thread end tip end and the part of plastic material molded around the screw clear area in which there can be a circumferential groove or rib into or over which the plastic part is molded to better hold the part to the screw. In another embodiment fins extend into the part hole to hold the screw by an interference type fit.

A specified torque nut, which is suitable for tightening fittings, etc., can only be tightened to the specified tightening torque, and can be checked at a glance whether the tightening is complete or not. The torque operation part with the tool locking surface on the outside is integrally formed with the nut body with the female thread hole, and the torque operation part has a non-circular hole concentric with the female thread hole and larger in diameter than the female thread hole from the end surface to the nut body , At the junction between the nut main body and the torque operating part, there is a torque limiting part that surrounds the non-circular hole and includes at least two weak parts.

A compression limiting fastening system incorporating a spring element and cooperating compression limiting sleeve adapted for substantially coaxial receipt of a fastening element through a fastened component so as to apply a relatively light load to an outer surface of the fastened component during the fastening operation. Once fastened down, the compression limiting sleeve supports the fastening load while the spring element applies a relatively light opposing load to the fastened component.

The invention concerns a flow drilling and tapping method for assembling thin metal sheets. A tubular extension (12) produced on said metal sheet comprises a conical mount (18) at said metal sheet (10). Through said mount (18), advantageously provided with a hexagonal base (24), the loads are transmitted along the tubular extension (12), and it is possible to fix a perforated element (1) on a metal sheet (10) having a thickness less than 1.5 mm and to apply a standard tightening torque.