摘要:
A goggle having at least one side arm. The arms may be used to support the goggle on a wearer's head, and may be pivotally mounted to the goggle frame inward of an outermost portion of the goggle lens(es) or frame. The arms may reinforce the frame, in some cases, to help better retain a lens in the goggle frame. The arms may nest within a groove, cut out or other feature in the goggle frame, e.g., to enhance the aerodynamic performance or aesthetic appearance of the goggle. The arms may closely follow and/or continue a smooth natural contour of the goggle frame, e.g., to make the arms less obtrusive.
摘要:
An endoscope, especially for transesophageal echocardiography. An encapsulated ultrasonic transducer capsule is provided having a self-contained electro-mechanical sector scanner. A sealed housing is formed which includes axially aligned tubular sections, one of magnetic material and the other of acoustically transparent plastic. A tubular shaft is journalled axially within the housing for limited sector scanning rotation. A magnetic rotor is fixed to the shaft for operation within the magnetic housing section and a transducer element is fixed to the shaft within the other tubular section. Conductor wires for activating the transducer are fixed at one end of the capsule and extend axially through the tubular shaft for connection to the transducer. Position sensing means are incorporated within the capsule. The construction enables the capsule to be highly miniaturized and greatly improved relative to known devices of this type.
摘要:
The invention is directed to protective helmets having vents with a manually operable vent shutter and methods of using same. In one embodiment, a helmet includes an outer shell, an upper liner, a lower liner, and a vent shutter positioned within a space defined by the upper and lower liners. The helmet includes at least one vent formed through the outer shell, upper liner, and lower liner. The helmet further includes an actuator assembly operable to move the vent shutter to open and close the at least one vent. The actuator assembly includes an engagement member, such as a gear. The engagement member engages the vent shutter and effects movement of the vent shutter when rotated relative to the vent shutter about the rotation axis. In another embodiment, the upper liner may be omitted and the vent shutter may be disposed between the interior of the outer shell and the lower liner.
摘要:
An endoscope, especially for transesophageal echocardiography. An encapsulated ultrasonic transducer capsule is provided having a self-contained electro-mechanical sector scanner. A sealed housing is formed which includes axially aligned tubular sections, one of magnetic material and the other of acoustically transparent plastic. A tubular shaft is journalled axially within the housing for limited sector scanning rotation. A magnetic rotor is fixed to the shaft for operation within the magnetic housing section and a transducer element is fixed to the shaft within the other tubular section. Conductor wires for activating the transducer are fixed at one end of the capsule and extend axially through the tubular shaft for connection to the transducer. Position sensing means are incorporated within the capsule. The construction enables the capsule to be highly miniaturized and greatly improved relative to known devices of its type.
摘要:
A multiprocessor system consisting of a plurality of slave processors and a master processor each connected by a bus to a common memory. Message transfers are implemented by the master which scans one-byte areas in the common memory-each slave processor only being able to load a pointer to one said one-byte areas.Contention problems are prevented because once a remote processor has loaded information to its one byte area it must pass control of the bus to another processor. The system is fast because the master does not waste time looking at empty memory.