Abstract: A holder for a hand-size container for use in conjunction with a portable chair. The holder comprises an integral body portion and a clamping means for attaching the holder to the portable chair. The integral body portion consists of an annular band having an inside diameter sized to receive a hand-held container, first and second arcuate legs, and a horizontal double-beam-flange member which cooperate to securely and removably hold and support a container placed within the annular band. The annular band may include a discontinuity to accommodate the passage through the annular band of a protruding part of the container, for example, a cup handle. The clamping means is affixed to an end of the horizontal double-beam-flange member so as to provide a means for removably attaching the holder to a portable chair.

Abstract: The invention relates to medium carbon steels and low alloy steels having a concentration of a machinability enhancing agent (“MEA”), i.e. tin and/or antimony, at its ferrite grain boundaries which enhances the steel's machinability and to processes for producing such steels. The invention encompasses medium carbon steels and low alloy steels characterized by having MEA bulk contents of from about 0.02 to about 0.09 weight percent, by having the sum of the MEA bulk content and the copper bulk content being no greater than about 0.10 weight percent, and by having a microstructure at the time of machining having a concentration of MEA at ferrite grain boundaries in an amount at least about five times the MEA bulk content of the steel.

Abstract: The invention relates to free-machining steels which do not rely on lead as a means of enhancing machinability. Instead, the steels of the invention employ concentrations of tin, arsenic, and/or antimony at ferrite grain boundaries to replicate a role of lead, which the inventors have discovered, in enhancing machinability. This role is to cause an embrittlement at the localized cutting zone temperatures by changing the fracture mode from transgranular to intergranular at those temperatures. The invention's use of concentrations of tin, arsenic, and/or antimony at the ferrite grain boundaries of the steel permits the machinability-enhancing effect to be obtained while employing bulk contents of tin, arsenic, and/or antimony below the levels at which hot tearing becomes problematic.

Abstract: An attachment surface for an implantable device has a random irregular pattern formed through a repetitive masking and chemical milling process. Additionally, an attachment surface for an implantable device has a random irregular pattern formed through a repetitive masking and electrochemical milling process. The electrochemical milling process is particularly well suited for use with substrate materials which have high chemical inertness which makes them resistant to chemical etching. Surface material is removed from the implant surface without stress on the adjoining material and the process provides fully dimensional fillet radii at the base of the surface irregularities. This irregular surface is adapted to receive the ingrowth of bone material and to provide a strong anchor for that bone material. The unitary nature of the substrate and surface features provides a strong anchoring surface with is resistant to cracking or breaking.

Abstract: The invention comprises an eyeglass set comprising framed eyeglasses, framed sunglasses which can be detachably attached to the eyeglass frames, and coverlets which can be detachably attached to the temples of the eyeglass frames. The eyeglass frame has left and right temples pivotally attached to a front portion which holds a pair of eyeglass lenses. The sunglass frame holds a pair of sunglass lenses and contains a resilient bridge clip and a plurality of resilient retainer clips arranged so that the bridge clip and retainer clips cooperate to permit the sunglass frame to be detachably attached to the eyeglass frame. Each of the right and left temple coverlets has a channel for receiving, respectively, the right and left temples of the eyeglass frame and at least one magnet disposed so as to permit the coverlet to be detachably attached to its respective eyeglass temple.