Abstract: A system and method for calibrating an inertial motion sensor attached to an article of sports equipment or to a body segment in accordance with the user's initial orientation and location at the beginning of a sports motion. The sensor captures real-time motion data and the calibrated initial orientation and location provide absolute heading angle and starting position of the equipment or body segment in a spatial frame. Subsequent motion data within the spatial frame can be accurately analyzed so that three dimensional trajectory of the equipment or body segment can be precisely determined and presented in an animated playing environment on devices such as smartphones, tablets and laptops.

Abstract: A gameboard includes a plurality of top-slotted, intersecting channels to define a grid of tracks for movement of playing pieces along and between the tracks. Each of the playing pieces includes a head projecting from the channel and a base within the channel. The head and base are interconnected by a neck having a collar so as to expand its cross section over a portion of its length. The neck passes through the slot to allow free movement of the piece along the tracks and inhibit removal of the piece from the plane of the gameboard. The collar is seated within the track intersections to restrict movement of the piece out of the intersections.

Abstract: A board game for two players includes a board with a rectangular grid of discrete playing positions denoted thereon to form a central playing zone, and a line of discrete scoring positions denoted thereon to form a scoring zone on each end and each side of the playing zone. Each scoring position is marked with a number denoting its value. A set of game pieces is provided for each player, and the pieces are marked with numbers to denote values corresponding to scoring position values. The opposing end scoring zones comprise starting zones, and the pieces are initially placed on like-valued positions within each starting zone. The allowed movement of a piece on each turn is dictated by its value, with the object being to place each piece in a like-valued scoring position in a side zone or in the scoring zone opposite the starting zone. A game ends when one player has all his pieces so positioned, and a point score is awarded each player in relation to the value of each piece in a scoring position.

Abstract: An improved method and apparatus for gathering seismic data in a region covered by a body of water. Gas bubbles are formed in a zone of water adjacent a streamer containing hydrophones to form an acoustic lens for refracting acoustic waves which have reflected from the sea floor or subfloor geologic structures. This zone reduces the amount of noise at the hydrophones due to multiple reflections of sound between the water surface and floor. In the preferred embodiment, a pair of perforated gas dispensing tubes are towed from a seismic vessel. The tubes are maintained in a fixed position relative to the streamer generally above and on opposite sides of the streamer by a pair of paravanes, one attached to each tube. A gas compressing means aboard the vessel supplies gas to the tubes. The gas then escapes through the perforations in the tubes to form the zone.

Abstract: A manipulative cube puzzle having a hollow box structure of parallelepipedon form and containing a predetermined number of cubes at least one less than the capacity of said box structure in at least one tier, the construction of said box structure being such that any cube therein may be slidably positioned for flipping to any one of 24 positions at the option and control of the player.

Abstract: A garment, such as a vest, has a removable, reversible inner liner of insulating material incorporated a perforated reflective film, the inner liner being formed in front and back portions detachably connected to one another in the shoulder area and accessible through openings in the garment. A continuous slide fastener is provided for joining the front portions of the garment which is usable with or without the removable, reversible inner liner and when used with the inner liner the same may be reversed to position the reflective film toward the wearer's body or alternately away from the wearer's body as desired.

Abstract: A manipulative cube puzzle having at least one horizontal tier of cubes in which the cubes may be slid, rotated or tumbled at the option of the player, the cubes being marked on at least part of the faces with various colors, letters, numbers, designs or symbols in order to permit the player to arrange the cubes in combinations of varying complexity.

Abstract: An insulation material comprised of multiple layers of treated newspaper in a compartmentalized air impervious resin container or use as side wall or ceiling insulation bats in homes or like structures.

Abstract: An insulation material comprised of multiple layers of treated newspaper spaced in relation to one another for use as side wall or ceiling insulation bats and wall board in older homes.

Abstract: A mixture of a hydroxyl endblocked polydimethylsiloxane, ethylpolysilicate, monoorganotriacetoxysilane, organotin carboxylate, an extending filler and organic solvent provides dispersions which cure to silicone elastomers at room temperature. These compositions have long storage life and can be made into compositions which are storable for extended periods of time in a single container if kept under substantially anhydrous conditions. These compositions can be prepared extrudable or sprayable, are pigmentable, have high strengths, and are readily prepared.

Abstract: A mixture of a hydroxyl endblocked polydimethylsiloxane, ethylpolysilicate, a silane of the formulaRSi(O--N.dbd.CR'R.sup.2).sub.3where R is methyl or vinyl and each R' and R.sup.2 is methyl or ethyl, organotin carboxylate, an extending filler and organic solvent provides dispersions which cure to silicone elastomers at room temperature. These compositions have long storage life sufficient to permit storage in a single container for extended periods of time. These compositions can be prepared extrudable or sprayable, are pigmentable, have high strength, and are readily prepared.

Abstract: An instantaneous, omnidirectional direction finding system for locating an incoming wave over a complete 360.degree. arc in space employing a circular antenna array and a fixed phase shifting network for deriving from said array a differently time phase shifted signal for each different spatial direction. The array observes all spatial directions continuously, as opposed to a sequential angular scanning technique. In a preferred system, the phase shifting network provides a plurality of output modes wherein the incoming wave is defined by different phase displaced signals that are compared and quantized to obtain a digital code representing direction.

Abstract: A device for opening locks with magnetically actuated tumblers or pins is provided with a housing of non-magnetizable composition and a plurality of interlocking gear wheels, pivotably retained in the housing, and also constructed from materials not susceptible to permanent magnetization. The gear wheels are pierced by a plurality of orifices across their thickness and cylindrical permanent magnets are inset into each orifice with a substantially random distribution of their North and South poles with respect to the faces of the wheels. Means are provided to rotate the wheels simultaneously around their pivot axes, thereby generating a changing, random distribution of magnetic fields arising from the interaction of the inset permanent magnets.

Abstract: A pulsed current battery charging method functions to improve battery capacity characteristics of a liquid electrolyte electrical storage battery and prolong battery useful life. Pulses of charging current are applied optionally concurrent with conventional charging current. The pulse amplitude is of significant magnitude in relation to conventional small, finishing rate or trickle charge charging currents. Pulse amplitude, duration and pulse repetition rate are controllable. Apparatus designed to carry out this method includes power supply means, pulse current generating means and optional control means.

Abstract: Mixing under substantially anhydrous conditions, below 60.degree.C. and under shear conditions which do not substantially alter filler structure, 100 parts by weight of a hydroxyl endblocked polydimethylsiloxane, 70 to 150 parts by weight of a finely divided agglomerated precipitated acicular calcium carbonate, 35 to 200 parts by weight of organic solvent, from 12 to 20 parts by weight of monoalkyltriacetoxysilane and a catalytic amount of an organotin carboxylate, a curable mixture which is storable under anhydrous conditions is obtained. Exposing this curable mixture to atmospheric moisture and allowing the organic solvent to evaporate provides a cured coherent solid elastomeric material which is paintable with at least one type of decorative organic base paint which forms a continuous coating over the surface and adheres thereto. Silicone rubber compositions are also described which cured to elastomers having paintable surfaces.

Abstract: A vertically swingable boom is provided with a downwardly opening grappling fork having horizontally swingable tines that are operated in unison by mechanism reciprocable vertically across the outer end of the boom. Power is supplied to the mechanism via a vertically swingable rocker and a fluid pressure piston and cylinder assembly lying along the boom and having a ram coupled with the rocker that reciprocates toward and away from the fork. Special geometrical and tolerance relationships between the tines and the plunger mechanism permit certain of the tines to move more deeply into the grappled load than others if disproportionate resistances are encountered, all without subjecting the fork, the connecting mechanism, and the ram to excessive bending forces.