Abstract: Modular storage systems include load sensors disposed beneath or in association with platforms. The load sensors are pulse-sampled for signals corresponding to loads at time intervals, rather than continuously, in order to conserve electrical power. An item associated with a transaction is identified based on a change in the loads, as determined from the pulse-sampled signals. The platforms are aligned at horizontal or non-horizontal angles, and photovoltaic power sources with banks of photovoltaic cells are mounted to front edges of the platforms. When a user reaches over one of the photovoltaic cells to access an item on a platform, a level of power or voltage generated by the photovoltaic cell is diminished. The item closest to the photovoltaic cell having the diminished power or voltage, or a customer that accessed the item, may be identified accordingly.

Abstract: An electromechanical transducer 180, motor structure 200 and voice coil winding support structure or bobbin 210 are configured to protect and transport heat away from a voice coil 220 which is would solely within the interior of bobbin 210 and configured for reciprocating movement in close proximity to an extended cooling pole piece 204. A compact, economical and efficient adaptation of a pancake style motor includes generous volume for a powerful magnet 208, while providing an extended, linear range of excursion and continuous cooling for the generously overhung voice coil 220.

Abstract: A loudspeaker driver 100 with new horn throat configuration 120 has a phase plug summation plane radius that is also the effective throat of the driver. The selected plane “D” where the elements of the horn that provide directional information to the wave front are implemented is made part of the geometry of the magnetic return circuit back plate 108. The portion of the back plate that is coincident with the selected plane “D” has a lumen or opening that is made equal to the radius of the circle defined by the phase plug summation plane. The geometry of the back plate's lumen controls projected sound's radiation pattern.

Abstract: A loudspeaker driver 100 with new horn throat configuration 120 has a phase plug summation plane radius that is also the effective throat of the driver. The selected plane “D” where the elements of the horn that provide directional information to the wave front are implemented is made part of the geometry of the magnetic return circuit back plate 108. The portion of the back plate that is coincident with the selected plane “D” has a lumen or opening that is made equal to the radius of the circle defined by the phase plug summation plane. The geometry of the back plate's lumen controls projected sound's radiation pattern.

Abstract: An electromechanical transducer 180, motor structure 200 and voice coil winding support structure or bobbin 210 are configured to protect and transport heat away from a voice coil 220 which is would solely within the interior of bobbin 210 and configured for reciprocating movement in close proximity to an extended cooling pole piece 204. A compact, economical and efficient adaptation of a pancake style motor includes generous volume for a powerful magnet 208, while providing an extended, linear range of excursion and continuous cooling for the generously overhung voice coil 220.

Abstract: A tactile wave generating apparatus for generating amplified low frequency waves for transmission as tactile waves into a structure or a person's body. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.

Abstract: A tactile wave generating apparatus for generating amplified low frequency waves for transmission as tactile waves into a structure or a person's body. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.

Abstract: A tactile wave generating apparatus and method to generate amplified low frequency waves which are then transmitted as tactile waves into a structure and/or to a persons anatomy. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.

Abstract: A power efficient, acoustical Helmholtz resonator foghorn including a plurality of electrical emitters, some of which are redundant, arrayed at one end of a blocked tube with a plurality of exhaust ports located therein surrounded by a standoff tubular member. The foghorn tuned to provide a high pitch thus providing a compact horn having an acoustical path capable of producing an exceptional wavelength in a generally concentric horizontal sound propagation the horn configurable for use as either a one-half mile or two mile marine navigational aid for offshore structures, buoys, and the like.

Abstract: A tactile wave generating apparatus and method to generate amplified low frequency waves which are then transmitted as tactile waves into a structure and/or to a persons anatomy. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.

Abstract: A loudspeaker enclosure which is adapted to be easily assembled with other like enclosures. The loudspeaker enclosure comprises a front wall through which sound can emanate, two essentially parallel end walls, each end wall being in the shape of a trapezoid and a back wall. The enclosure further includes two side walls extending between the end walls, each of the side walls having a plurality of outwardly projecting linear ribs extending on a line between the front wall and the back wall.

Abstract: A pressing cloth for use with an ironing board includes a piece of textile material having dimensions adaptable for positioning on the surface of an ironing board and in particular on a cover of an ironing board. In one embodiment one end of the pressing cloth is removably connected to the tapered end portion of the ironing board. The second end portion of the pressing cloth is freely movable on the surface of the ironing board so as to be used as a pressing cloth when desired. When not in use the second end of the pressing cloth is removed from the ironing board so as to expose the ironing board with the pressing cloth remaining attached to the ironing board. In another embodiment the pressing cloth and ironing board cover are integrally connected. The ironing board cover is conventionally secured to the ironing board. One end of the pressing cloth is secured, such as by sewing, to one end of the ironing board cover.

Abstract: A loudspeaker is provided which has a novel integrally formed back plate and pole-piece. The back plate and pole-piece has an annular portion and a toroidal portion. The result is a marked reduction in magnetic leakage caused by reluctance due to interfaces and corners.

Abstract: A speaker system comprises a main cabinet and two auxiliary speakers. The main cabinet encloses a bass speaker and includes a slot for slot-loading of the bass speaker. The auxiliary speakers have a frequency range higher than that of the bass speaker, and are in enclosures which fit within slots in the main cabinet.The system provides a high-quality speaker system which is easily transported by placing of the auxiliary speaker in a slot.

Abstract: A loudspeaker is provided which has a novel integrally formed back plate and pole-piece. The back plate and pole-piece has an annular portion and a toroidal portion. The result is a marked reduction in magnetic leakage caused by reluctance due to interfaces and corners.