Abstract: A weighted cover for use on any one of a set of golf clubs. The cover including a foot to enclose the head of a golf club and to receive and rigidly retain a weight therein, the foot being of sufficient size to receive any golf club head of the set therein and a sheath connected to the foot that extends outwardly from the foot along the shaft of the club. The sheath being fabricated of an elastic material and defining a diameter less than that of a golf club head. The narrow diameter of the sheath maintaining the club head cover on the club and the length of the sheath serving to ornament and protect the golf club shaft. A strap affixed adjacent the point of connection of the sheath to facilitate further restriction of the diameter of the sheath and retention of the present cover during practice swinging thereof.

Abstract: Color discrimination may be improved by fitting to a patient's eye a plastics contact lens having a tinted central circular section. The optimum tint is determined by testing the effects of a sequence of differently tinted lens on a patient.

Abstract: A water purification system for home or light commercial application including a preconditioning stage followed by an integrated water sterilization stage. Both stages utilize a single pressure chamber in which the active medium for the preconditioning stage is placed within this chamber as is the entire sterilization stage. More specifically, UV sterilization is contemplated with the UV stage having a stainless steel vessel which, however, is operated at zero differential pressure. A single head is fitted to the top of the pressure chamber and serves multiple functions of admitting the water to be purified and expelling the purified water and, further, to retain the UV vessel, the UV lamp and quartz shield. A segregation device is positioned at the inlet to the UV vessel to separate the respective stages and to assure that none of the preconditioning medium is admitted to the UV vessel.

Abstract: An adjustable housing or chassis for electronic devices specifically intended for mounting in panels of unknown and variable thickness, for example, in the panels of aircraft. The chassis includes base and cover members that telescopingly mate to form a complete enclosure for electronic printed circuits therein. The chassis members include plural flanges and/or sidewalls to create a self-interlocking chassis in which the cover is restrained from lateral and vertical movement on the base. The cover is axially adjustable on the base to thereby expose more or less of the electronic controls as dictated by the thickness of aircraft panel.

Abstract: A modular neon sign system comprising two or more independent neon or similar luminous tube segments. One or more of the luminous segments are arranged in generally parallel configuration across the remaining tube segments and each such parallel segment includes a series capacitive ballasting element to selectively control the current through the respective segment. Receptacles may be provided to facilitate the attachment of the parallel segments thereby forming detachable neon modules. The capacitive ballasting element is preferably a ceramic button-like disc that may be connected to an end of the parallel neon module or inserted into the receptacle. In one embodiment the several parallel segments are connected to a reduced tension constant voltage power supply. In a second erabodiment, a constant current power supply is continuously interconnected to one or more neon luminous tubes that define a fixed portion of the sign with the parallel segment(s) or module(s) being connected across said fixed portion.

Abstract: A system of office furniture and files including combinations of tubular leg and other vertical and lateral members interconnected by orthogonal joint connectors and channels to structurally strengthen and aesthetically appoint the furniture pieces. The channels require no special mounting or alignment and are automatically positioned and retained to the tubular members and joint connectors. The channels include spaced upper and lower holes at each end, one of the holes being substantially equal to the outer diameter of the tubular member while the other hole is substantially equal to the inner diameter whereby the larger hole is positioned and slid over the tubular member and the smaller hole is rigidly sandwiched between an end of the tubular member and the connector joint whereby the channels are thereby and automatically positioned and rigidly retained in fixed, predetermined relationship to the tubular members.

Abstract: A high frequency power supply for neon and mercury luminous tubes including means for simultaneously suppressing bubbles formed in neon tubes and for minimizing migration of mercury commonly associated with the use of solid-state luminous tube power supplies.

Abstract: A low frequency parasitic oscillation suppressor for series, current-fed high frequency luminous tube power supplies. The suppressor incorporates a transformer, the primary of which serves as the conventional series input choke. A parasitic damping resistor and diode are connected in series with the transformer secondary and this series combination is, in turn, connected across the DC supply source for the oscillator. The transformer turns-ratio is selected such that no current flows through the series secondary under normal operating conditions. Upon the generation of a low frequency parasitic oscillation, a current is caused to flow through the secondary including the parasitic damping resistor thereby dampening the parasitic oscillation while maintaining normal high frequency operation.

Abstract: Apparatus for dimming neon tubes and signs in which certain problems associated with high dimming levels (lowered illumination intensities), namely, of tube non-excitation and non-uniform illumination, are eliminated. The apparatus includes a generator for creating pulse groups, which groups consist of one or more high frequency, full-amplitude pulses and a modulator for selectively controlling the repetition rate of the pulse group and/or the number of pulses forming each group. The apparatus further includes ground fault interruption circuitry that is immune from the false triggering occasioned by the low pulse group repetition rate which in turn results in the repeated de-ionization/re-ionization of the neon gas. The ground fault interruption circuitry includes a detector for establishing the initiation of a pulse group and an inhibitor to preclude ground fault interruption during periods of gas re-ionization following the commencement of each pulse group.

Abstract: A universal plastic siding clip for attaching cables and wires to the outside of a building. The siding clip includes cooperating cable retention mechanisms for both horizontal cable spans and vertical cable drops thereby permitting the use of a single fastener for either or both types of cable runs. The retention mechanisms are spaced to avoid cable interference where both cable types are utilized and, further, to position horizontal cables closer to the wall surface thus making use of the intrinsic protection offered by overlapping siding planks while the vertical runs are spaced sufficiently outwardly from the wall surface to avoid interference with such overlapping planks. Cable recesses are provided to permit multiple and widely varying cable cross-sections and diameters in a single clip model. Further, the clip may be injection molded using simplified tooling without movable core members, side actions and similar apparatus that otherwise increases manufacturing costs.

Abstract: A slide retainer for an injection mold tool with positive locking, recessed mounting, and guide bar capabilities. The retainer includes a track channel insert rigidly mounted in the base plate of an injection mold tool and a cooperating cylindrical insert mounted for rotational movement in the slide. The channel insert may be extended outwardly from the base plate to serve secondarily as the slide guide bar. The cylindrical insert includes an eccentrically mounted track pin and a torsional spring thereby biasing the track pin for rotation movement. The channel insert includes a circumferential heart-shaped channel that defines an island in the middle thereof. The track pin extends into the channel and traverses the circumferential path once during each mold cycle. A unidirection flapper gate is provided to route the pin through the channel in the proper direction. Slide retention and locking are achieved when the track pin is oriented in the indented portion at the top of the heart-shaped channel.

Abstract: A one-piece reclosable ducting system for electrical wiring or the like. The duct system includes an elongated channel and a mating channel cover. The channel and channel cover are formed as integral members in a dual-durometer plastics co-extrusion process. More specifically, the channel and channel cover are maintained in operative relationship along respective first edges by a flexible plastic hinge, again, co-extruded with the channel and cover. The flexible plastic hinge permits repeated access and closure of the channel without hinge fatigue. A cantilever tension arm or support beam is integrally formed in the ducting system and extends from the channel to bias and retain the channel cover in proper orientation thereby assuring latching of the cover while simultaneously maintaining overall ducting system structural integrity.

Abstract: An add-on shelf for athletic or school lockers having hinged first and second planar shelf members. The edge of the first shelf member is hingedly affixed along the length of the second shelf member, the precise hinge point being adjustable to accommodate differing width lockers. Tabs on the first shelf member engage slots on the second shelf member to form the hinge. A plurality of slots are provided along the second shelf member to facilitate the above-noted width adjustment. Releasable latch means lock the shelf members is fixed planar orientation. Rubber abutment feet are provided along the outside edges of the shelf members to engage the locker walls. The shelf is installed by forming an obtuse angle between the shelf members, placing the shelf assembly into the locker, then, forcing the angle open until the shelf members are in the 180 degree planar locked position.

Abstract: A tent comprises a fabric layer over one or more arch poles, wherein said pole or poles is tensionable by means of tensioning members connected between upper and lower points of each said pole.

Abstract: A high frequency power supply for neon and mercury luminous tubes including means for simultaneously suppressing bubbles formed in neon tubes and for minimizing migration of mercury commonly associated with the use of solid-state luminous tube power supplies.

Abstract: The invention relates to packing material for use in the cultivation of anchorage-dependent cells, which require a solid surface for proliferation. The packing material of the invention is provided in the form of units of curved sheet material, which individual units generally have a thickness of about 0.05 mm to 0.25 mm, the other dimensions being of the order of one to a few millimeter maximum dimensions. Various shapes can be used, such as twisted rectangles, segments of cylinders, convulated ribbons, twisted shapes, ring shape and the like.