517results about How to "Avoid insufficient friction" patented technology

An apparatus for dispensing plastic bags is disclosed. The apparatus includes a dispensing rack having a base, opposing sides, and a front portion. The opposing sides include tracks that accommodate a spindle capable of being inserted through a core of a roll of plastic bags and into the tracks such that the roll of plastic bags is seated in the dispenser rack and rotatable with respect to the spindle. The front portion of the dispensing rack is formed with a tongue which engages with a slit between bags on a roll and causes a bag to separate along a perforation. The front portion of the dispensing rack may also be formed with wedges which angle downward from the sides of the dispensing rack toward a lower portion of the tongue. When a bag is detached, the wedges catch the next bag and hold the next bag in place.

A pivotally mounted arrow rest that has a support element moveable between a loaded position and an unloaded position. A bias element urges the support element toward the unloaded position. A flexible inelastic member has a first end portion fixed with respect to a bow cable and a second end portion operatively connected to support element. When the support element is in the loaded position, the flexible inelastic member is in a tension condition.

A packaging unit is provided, especially for a wiper blade. The packaging unit has a container for receiving at least one object and a casing that is able to be slid over the container, the casing covering the container at least partially. The casing has a section having a narrowed cross section, so that, in the area of the section, the casing exerts a clamping force on the container.

An apparatus for holding an arrow with respect to an archery bow, particularly when the archery bow is carried and moved into different positions. The holding apparatus has a base portion preferably but not necessarily integrated with an upper portion. The upper portion has two opposing walls spaced apart from each other and extending outward from a top surface of the base portion. The opposing walls form a void within which a shaft of an arrow fits.

A screw and rod fixation assembly includes a body member including a screw seat for seating a screw head therein and a rod seat for seating a rod therein. An adjustable locking ring applies a locking force against the screw head seated in the screw seat and a locking cap adjustably applies a locking force against a rod seated in the rod seat. The adjustable screw locking ring and locking cap function independent of each other.A method of fixing the rod to the screw includes the steps of inserting a screw head into a screw seat in one end of a body member and inserting a rod into a rod seat in a second end of a body member and selectively and independently adjusting a locking force on both the screw head and the rod within the screw seat and rod seat, respectively.

A friction sheet includes a fabric sheet with a friction surface formed on a surface of the fabric sheet and the friction sheet is attached to an outsole so as to provide the outsole better friction and grasp ability. The friction sheets are especially designed to be cooperated with thin outsoles.

The invention discloses a device for installing externally-clamping probes of a portable ultrasonic flow meter. The device comprises a pair of externally-clamping probes which are arranged on a pair of probe fixtures, wherein each probe fixture is arranged on the outer wall of a pipeline to be detected through a fixture fixing device; the middle shaft surface of each probe fixture and the axis ofthe pipeline to be detected are adjusted to be on the same plane by an adjusting device; each probe fixture comprises a support frame, a probe guide frame and a probe pressing device; the support frame and the middle shaft surface in the probe guide frame are overlapped and fastened together; an inner side gap between two sides of the probe guide frame is the same as the width of the probe, so that the middle shaft surface of the probe is automatically overlapped with the middle shaft surface of the probe guide frame, namely is overlapped with the middle shaft surface of the probe fixture, after the probe is guided into the probe guide frame; and the probe pressing device presses the probe to make the probe tightly attached to the outer wall of the pipeline to be detected. By the installation device, the probes can be accurately and conveniently positioned; and the device is easy and convenient to carry and install.

A reference beam generator has first, second, and third projection turrets for projecting first, second, and third fan beams of laser light, respectively. The first, second, and third fan beams of laser light are oriented normal to each other. The turrets may be rotated such that each of said fan beams can each be rotated about an axis that is normal to the plane in which the fan beam is projected. The generator may be used to project a number of reference points and lines on multiple surfaces.

The invention concerns a mounting arrangement for mounting an orthodontic bracket on a tooth. The mounting arrangement comprises an orthodontic bracket and a mounting aid, wherein the mounting aid can be detachably connected to the orthodontic bracket with positive engagement by pushing it onto the bracket in such a way that long sides of the side pieces of the mounting aid engage in guide grooves of the bracket.

An audio lanyard audio device provides a number of advantages not seen with earlier devices, including, (1) a pair of soft openings to accept the ear pieces of conventional eyewear in a manner that supports and engages several inches of the ear pieces of conventional eyewear with sufficient surface area and friction to hold the conventional eyewear securely, (2) provision of a length of softer foam material for fitting both the lanyard and convention eyewear ear pieces between the ear and head, (3) formation of a balanced combination when worn with conventional eyewear, and (4) the location of the controls and main electronics and battery at the rear for balance and easy reach by a user.

A variety of training boards and panel assemblies are supported by an indoor floor base to provide targets with rebound capability for developing and improving ball handling skills. Panel supporting uprights extend upwardly from a base housing to provide backing and necessary stability for a rebound panel. The supporting uprights are configured to provide supporting surfaces to which the rebound panels are attached, with the supporting surfaces aligned to position the rebound panels in a desired orientation. To provide stability, the base housing includes frictional elements to help hold in place for while in a gym floor. Also, the base housing is configured to hold weights of a desired configuration, thus cooperating with the frictional elements to hold the training board in place while being subjected to forces from balls. In addition, the supporting uprights have multiple support surfaces capable of aligning the panels in a desired orientation, thus providing multiple rebound characteristics to the user.