Abstract: A skateboard wheel cover includes a circumferential lip, an inner surface connected to an inner portion of the circumferential lip, and an outer surface connected to an outer portion of the circumferential lip. The outer surface is a material with a durometer different than a durometer of the wheel. The cover further includes at least a first attachment device configured to selectively attach to a skateboard wheel.

Abstract: A skateboard wheel cover includes a circumferential lip, an inner surface connected to an inner portion of the circumferential lip, and an outer surface connected to an outer portion of the circumferential lip. The outer surface is a material with a durometer different than a durometer of the wheel. The cover further includes at least a first attachment device configured to selectively attach to a skateboard wheel.

Abstract: A skateboard wheel cover includes a circumferential lip, an inner surface connected to an inner portion of the circumferential lip, and an outer surface connected to an outer portion of the circumferential lip. The outer surface is a material with a durometer different than a durometer of the wheel. The cover further includes at least a first attachment device configured to selectively attach to a skateboard wheel.

Abstract: A cable television system (100) includes forward and reverse paths. Reverse path circuitry within an optical node (400) of the system (100) receives reverse analog electrical signals from subscriber equipment (140) and generates therefrom a multiplexed reverse digital optical signal. The reverse digital optical signal is transmitted over a fiber optic cable 420 to a cable television hub (430), the reverse path portion of which includes no active circuitry. The hub (430) multiplexes the reverse digital optical signal with other reverse digital optical signals from other nodes to generate one or more forwarded digital optical signals at a hub output, wherein generation of the one or more forwarded digital optical signals requires only passive devices in the reverse path of the hub (430).

Abstract: A cable television system (100) includes forward and reverse paths. Reverse path circuitry within an optical node (400) of the system (100) receives reverse analog electrical signals from subscriber equipment (140) and generates therefrom a multiplexed reverse digital optical signal. The reverse digital optical signal is transmitted over a fiber optic cable 420 to a cable television hub (430), the reverse path portion of which includes no active circuitry. The hub (430) multiplexes the reverse digital optical signal with other reverse digital optical signals from other nodes to generate one or more forwarded digital optical signals at a hub output, wherein generation of the one or more forwarded digital optical signals requires only passive devices in the reverse path of the hub (430).

Abstract: A communications system includes forward and reverse paths. Reverse path circuitry within an optical node of the system receives reverse analog electrical signals from subscriber equipment and generates therefrom a multiplexed reverse digital optical signal. A coupling node combines digital optical signals and/or RF signals from an optical node or from coaxial cable, respectively. The combined digital optical signal is transmitted over a fiber optic cable to a cable television hub, the reverse path portion of which includes no active circuitry. The hub multiplexes the digital optical signal with other digital optical signals from other nodes to generate one or more forwarded digital optical signals at a hub output, wherein generation of the one or more forwarded digital optical signals requires only passive devices in the reverse path of the hub.

Abstract: An underwater cable has a flexible, elongated core surrounded by a flexible, elongated jacket. A distributed jacket includes a helically displaced phase shifter to decouple the cable from strumming produced by shedding of von Karman vortex streets from the cable.

Abstract: A self-contained cooling device for cooling the contents of an open container includes a cooling portion which, upon activation of the device, is cooled below ambient temperature and a handle portion secured to the cooling portion but insulated therefrom so that a user can grasp the handle portion and insert the cooling portion into the contents of an open container to be cooled and manipulate the cooling portion in such contents. In a preferred embodiment of the device, the device takes the form of an elongate rod similar to a stir stick which can be inserted into ad stirred about the contents of a container to be cooled.

Abstract: An electrooptic apparatus is disclosed for linear predictive adaptive filtering. The apparatus combines the desirable filtering effects of a correlation cancellation loop method of linear prediction with the parallelism and large bandwidth capabilities of optical processing.

Abstract: A long, continuous, constant diameter, neutrally buoyant oil filled line array hose without couplings comprising a plastic inner hose having a layer of conducting and/or optical fibers wrapped helically around and bonded to the outer periphery along the neutral axis thereof. A strength member layer is encased within and bonded to an outer plastic sleeve which covers the conducting layer. Sensors are placed within the inner hose cavity through incisions formed at predetermined locations, attached to the conducting layer, and sensor-conductor junctions are sealed with a waterproof coating; the incisions are then chemically sealed. The hose cavity is filled with an insulating oil providing a continuous, oil filled constant diameter, line array hose devoid of coupling members.

Abstract: A hybrid space/time integrating optical ambiguity processor in which time-sequential segments of a spatially modulated optical signal are received in a two-dimensional optical modulator. The output of the optical modulator is periodically imaged along one axis and transformed along a perpendicular axis, and the result is detected for further use. Two embodiments of the two-dimensional optical modulator are described; one utilizing an electrical-to-optical transducer and one utilizing an optical-to-optical transducer.

Abstract: The present invention comprises a bean harvesting apparatus mounted on the forward end of a motorized combine. The harvesting apparatus has a housing open along its leading edge for the reception of bean stalks. A power driven cutter bar is provided along the front of the housing which cuts the bean stalks and deposits them into the housing through the opening. A power driven suction apparatus creates a vacuum in the housing which urges the bean stalks upward and into the housing, following cutting. A power driven conveyor belt is disposed longitudinally across the housing. The conveyor belt is sufficiently porous to allow the drawing of a vacuum therethrough. A scraper mechanism scrapes the bean stalks from the conveyor belt, thereby dropping the bean stalks into the bottom of the housing. A power driven auger is disposed near the bottom of the housing which receives the bean stalks dropped from the conveyor belt.