Abstract: An incontinence seat for a wheelchair includes a seat insert attached to a wheelchair frame, the seat insert has a hole in the center. A cushion is attached to the seat insert, the cushion has a hole in the center aligned with the seat insert hole. A support bag is attached to the wheelchair frame below the seat insert. A collection bag, configured to fit through the seat insert hole and cushion hole, has a drawstring provided at a mouth of the collection bag, the bottom of the collection bag is nested inside the support bag, the inner surface of the mouth is inverted and wrapped around and under the cushion. A seat cover is affixed to the inner surface of the mouth of the collection bag, the seat cover includes a gutter flap and a seat cover hole aligned with the cushion and seat insert holes, the gutter flap is hinged to the seat cover, a deodorant pack may be affixed to the gutter flap.

Abstract: An optical fiber coupler including an optical fiber having an end, and an electronic light pulse communication assembly comprising an assembly housing, an electronic light pulse communication device fixed within the assembly housing, and a lens mounted on the assembly housing and in light pulse communication with the electronic light pulse communication device. The optical fiber coupler also includes a coupler housing having an inlet well, an assembly well separated from the inlet well by a coupler housing wall and having the assembly fixedly received therein, and a fiber passage which extends between the inlet well and the assembly well and which snugly receives the fiber so that the fiber end is adjacent the assembly lens.

Abstract: A fiber-optic switch uses a single optical fiber for two-way communication with light. A switching mechanism has no electrical part and is thus appropriate for placement in an area having explosive or combustible materials. The optical fiber can be cut to length in the field and can be installed without special tools or training. The fiber is held in place by a clip that is constrained to compress the fiber and grip it securely. A snap-action mirror reflects light back into the fiber in one position and does not reflect it in another position. An electronic circuit provides pulsed light and determines coincidence of sent and received pulses to discriminate against operation of the switch by ambient light or other spurious signals.

Abstract: A fiber-optic switch uses a single optical fiber for two-way communication with light. A switching mechanism has no electrical part and is thus appropriate for placement in an area having explosive or combustible material. The optical fiber can be cut to length in the field and can be installed without special tools or training. The fiber is held in place by a clip that is constrained to compress the fiber and grip it securely. A snap-action mirror reflects light back into the fiber in one position and does not reflect it in another position. An electronic circuit provides pulsed light and determines coincidence of sent and received pulses to discriminate against operation of the switch by ambient light or other spurious signals.

Abstract: A circuit for controlling a display panel identifying malfunctions in an engine generator receives a plurality of electrical signals from the engine generator, each of which identifies a particular trouble. The electrical signal may be produced by closing a switch. It is caused to operate a latch that lights a light associated with the particular malfunction. Indications of other malfunctions are suppressed until the circuit is reset. A manual reset tests all lights and then leaves them off ready to respond. A power-up reset does not test lights but leaves all lights off ready to respond. The circuit is rendered especially appropriate for military use by hardening against radiation and against pulses of electromagnetic interference.

Abstract: A ground-fault circuit interrupter is provided with an additional current-sensing element that responds to a net value of current through the power wires in an ac circuit. The winding may be wound on a ferromagnetic core of its own or it may be placed as a separate winding on a core that is used to sense imbalance in a GFCI. In the latter case the extra winding must be insulated electrically from the main sense winding. The additional coil is connected to a rectifying diode and a capacitor, so that an imbalance of current in the power wires charges the capacitor. The voltage thus developed across the capacitor is used to operate the tripping mechanism of the ground-fault circuit interrupter. The fault-powered signal thus attained in the added winding will enable the GFCI to operate despite the existence of heavy fault currents that reduce the operating voltage to the rest of the GFCI to a level that would otherwise prevent its operation.

Abstract: An improved treatment for copper foil that is to be used for lamination to a board comprises electrodepositing a dendritic layer of copper on the side of the foil that is to be laminated to the board. The dendritic layer is secured by electrodepositing a gilding layer of copper over it. A barrier layer is next electrodeposited over the gilding layer. The barrier layer is formed by means such as electrodeposition from a solution containing ions of zinc, nickel and antimony. This in turn is covered with an anticorrosion layer that is formed of chromates or phosphates, disposed over the barrier layer.

Abstract: A case for encasing a meter movement and its associated pointer comprised of an assembly at least a portion of which is transparent which completely encases the meter movement and pointer, connecting means for providing input signals to the meter movement through the assembly, a rear cover having openings for receiving the connecting means and proportioned to abut the rear of the assembly with the connecting means disposed within those openings, a scale of generally flat dimensions for displaying the parameter to be measured by the meter movement and indicated by the pointer which scale is held fixedly between the rear cover and the assembly in a position allowing a sweeping of the pointer across the face of the scale to indicate the level of the parameter sensed by the meter movement thereby allowing an exchange of the scale for some second scale without any possibility of physically engaging the pointer or the meter movement and causing damage thereto.

Abstract: An aerodynamic damper for reducing wind-induced motion, especially galloping, of electrical transmission and distribution lines comprises a structure that in cross-section has a vane that is secured to the conductor by two arms. Each of the arms is formed on the inside partly by an arc of a circle substantially equal in radius to the radius of the circle enclosing the conductor. This arc extends for about 45 degrees on each of the arms. The remaining part, for approximately 90 degrees, of each of the arms is formed by an arc of a circle of a radius smaller than that of the conductor and centered below and off the centerline of the conductor. Each of the arms is terminated by a lip which is thicker than the adjacent portion of the arm. In a preferred embodiment the damper is formed by extending the cross section linearly along the conductor for a distance of the order of four feet. In an alternate embodiment, the damper is formed by winding the cross-section in a helix about the conductor.

Abstract: A current monitoring circuit of a ground fault detector which receives its input from the secondary winding of an annular core transformer through which extends the current carrying leads being monitored. A resistor and capacitor are connected in series between the secondary winding and an AC amplifier to form an RLC band pass filter to minimize the circuits sensitivity to noise outside of the band of frequencies of interest. The sensitivity of the circuit to temperature changes due to fluctuations of the inductance is reduced by choosing an inductance value sufficiently high to ensure that it is not reduced to below a critical level at which sensitivity is effected.

Abstract: An induction motor controller with a scaling convertor for both providing selective alteration of the overload sensitivity characteristic of the controller and converting the input current to a proportional control voltage. The feedback circuit includes a plurality of feedback resistors which are selectively connectable between the output of the current-to-voltage convertor and its input to selectively change its gain and thus the sensitivity of the controller.

Abstract: A motor controller receives a signal proportional to motor current, integrates that signal during the high currents associated with starting, and holds a level during normal operation at speed within a maximum current limit. When an overload causes the motor to trip and there is a loss of power to the controller, a memory holds the level for a predetermined time to prevent an immediate restart of the motor.

Abstract: A memory package containing a nonvolatile electronic memory element and associated interface circuitry within a housing releasably connectable with a data entry panel of a controller to store program data from, and transmit program data to, the controller memory in the event of loss of program storage in the controller memory. The memory package is protectively mounted within the data entry panel and conveniently resides therein even when not being used.

Abstract: A watt/var transducer utilizing the pulse width-pulse height modulation type of multiplying scheme wherein a stable squarewave is generated by switching from one reference voltage to another reference voltage, the output thereof is integrated to produce a stable triangular wave output, the gain of which can be simply adjusted by shorting the output of amplifying means to various points in a resistive means contained in feedback means from the output to the input of said amplifying means. The frequency of the triangular wave output is high relative to any alternating signal which may pass upon the power line to be monitored by the transducer such that those portions of said alternating signal sampled by the multiplier portion of the transducer appear to be non-alternating signals thereby rendering the transducer capable of multiplying alternating signals as well as non-alternating signals.

Abstract: A medical power service column for use in a hospital room for supplying electrical power, lighting and gases and also for providing a centralized support for medical equipment. The medical column comprises a lower column section having an upper end and a lower end in contact with the floor of the hospital room, a see-through section having a first end attached to the upper end of the lower column section for providing increased visibility in the hospital room and a second end extending upward toward the ceiling of the hospital room, and an upper column section attached to the second end of the see-through section for supplying room lighting for the hospital room.

Abstract: A solid-state, multistage temperature controller for automatically controlling the operation of fans to maintain the temperature of an associated engine within preselected limits.

Abstract: This disclosure depicts a novel abort cycle timer circuit for use with an AC source of electrical power and for operating electrical controls for machinery. The circuit provides a substantially DC voltage and current, first and second relays with normally open and normally closed contacts and a timing abort circuit. Opening a first of two switches causes the second of the two relays to energize after a time delay. Opening both switches causes the second relay to deenergize after a predetermined time. The novel circuit has improved immunity to electrical and magnetic noise.

Abstract: Flutter in received radio signals at and above 150 MHz is reduced by a system having a plurality of directional antennas with receiving patterns that can be caused to rotate to sweep in azimuth. The antenna that receives the strongest signal is stopped from sweeping until another antenna receives a stronger signal, at which time it is stopped from sweeping and the antenna that was stopped is swept. Signals from all antennas are combined in a maximal-ratio diversity receiver to provide a combination of the signals that is additive regardless of their relative phase.

Abstract: This disclosure depicts a novel frictional locking non-rotatable strain relief clamp for securing an electrical conductor which is attached to an electrical plug or socket and for relieving strain on the attachment of the conductor and plug or socket. The strain relief clamp comprises a first clamp section having front and back walls and a curved side wall. The back wall has a radially extending narrow slot centered in the first clamp section. A second clamp section also has front and back walls and a curved side wall. The back wall has a radially extending narrow slot centered in the second clamp section. A means for holding the first clamp section to the second clamp section is provided such that the back wall of the first clamp section aligns with the back wall of the second clamp section. The strain relief clamp further comprises a unitary adapter having two retaining means for slideably engaging the slots in the first and second clamp sections.