A bicycle handlebar stem is provided with a throat which is in open communication with the loop thereof in which the central, knurled portion of a handlebar is received. The width of the throat is sufficiently wide to accommodate the passage of the transverse strut or brace bar disposed in spanning relationship with, and between, the risers of a handlebar while the loop of the stem is advanced along the handlebar riser toward the central, knurled portion thereof.

The intramedullary stem is provided with a plurality of recesses in the wide sides which are disposed in herring bone fashion. These recesses communicate with a longitudinal groove so that bone tissue material may move into the recesses and grooves during implantation. Apertures may also be provided through the stem so as to provide spaces for the tissue material to collect in a packed manner. Each recess also has a domed shaped pocket on the upper side to receive the material during implantatio...

A construction for valve stems for vehicle tires is provided which fits them to accept quick connect and disconnect connectors. The stem is equally functional with quick connect connectors of different sizes and provides a protective covering for the entrance to the valve stem which is quickly removed when the connector is to be affixed.

An improved stem portion of a joint prosthesis for replacing a damaged or diseased skeletal joint is provided by the subject invention, wherein a series of sections of elastomeric material attached to a rigid material are disposed one on top of the other in a staggered or offset configuration to form the stem. The offset is such that alternate sections of elastomer and rigid material contact selected locations of the bone within the medullary canal to firmly secure the prosthesis therewithin for...

A stem cleaner for cutting away thorns, excess foliage and the like from stems having a flexible handle with two free ends to which are attached at least one cutting blade capable of being pressed against a stem. The cutting blade is shaped so as to prevent damage to the outer stem bark: the stem-contact surface is wide along the stem length direction; oblique-angle transitions are provided between that surface and surfaces sloping away from the stem-contact surface; and a sharpened cutting edge...

The method of preventing improper functioning of an armor piercing projectile having an axial hollow liner around which the explosive of the projectile is consolidated which comprises consolidating an axial pellet of explosive into the rearward portion of said liner.

A hand tool capable of handling and forcibly inserting and anchoring a rubber valve stem in an opening provided therefor in a tubeless tire rim. This tool is unique in that it, unlike prior art tools, accomplishes the insertion and mounting step from the exterior of the rim and, in so doing, obviates the necessity of laboriously freeing and disenaging the bead of the mounted tire from the rim. Novel end thrust means provides a projectible and retractable leading end engageable with the usual sel...

A cold forged valve stem for a three-way valve includes a conical valving portion provided by a conical skirt of work hardened material. The skirt is radially deflectable to insure proper seating and hardened to reduce wear. An oppositely facing conical valve seat is also work hardened. The valve stem is cold formed from cylindrical stock without scrap. The skirt is formed by first upsetting an intermediate head and subsequently further upsetting such head while backward extruding a tubular skir...

A sleeve-stem, particularly for a gas cock with a valve provided, which is formed from sheet-metal rolled round and comprises a stop catch for securing the stem to a valve of a cock and an elastic tongue which impedes the extraction of the stem from the cock.

Drinking implements or utensils are devised by assembling various components having distinctive decorative features. A cup assembly is provided with a threaded ferrule at the base thereof for receiving a threaded pin at the end of a stem assembly. A decorative collar is interposed between the two and adapted for covering and concealing the ferrule in a fashionable manner. A candle holder based upon the same modular assembly technique is also presented.