Abstract: A system for imaging P-31 spectra from different slices through a living body specimen positioned in the bore of the hollow main field magnet of an NMR spectrometer, consisting of applying a timed series of different discrete different-amplitude magnetic field gradient pulses to the specimen, whereby to generate time-spaced echo signals from respective points along the specimen while timed RF resonance excitation pulses are applied to the specimen. The echo signals are used to derive respective chemical shift spectra from the points, each spectrum containing information showing the in vivo metabolic state at one of the points. The various spectra can be simultaneously displayed to enable concurrent slice-by-slice interpretation of the metabolic information. The gradient pulses are derived from coils mounted inside the main field magnet arranged to generate a magnetic field vector traversing the specimen. The gradient coils are energized by using a suitably programmed computer.

Abstract: A liquid micro-dispensing pipet consisting of a main barrel with a snap-on dispensing tube tip. An axial, upwardly spring-biased operating shaft is slidably and rotatably engaged in the barrel, connected to a plunger in the dispensing tip. The snap-on tip can be at times disengaged from the barrel by exerting axial downward force on the shaft. Stop means to limit the intake movement of the plunger is provided, said stop means consisting of an abutment sleeve slidably and non-rotatably mounted on the upper portion of the shaft and threadedly engaged in the barrel, the abutment sleeve being engageable from below by a stop washer secured on the shaft, which is normally urged upwardly by its biasing spring. The normal elevated position of the plunger can be varied by rotating the barrel relative to the shaft.

Abstract: A nuclear magnetic resonance analytic apparatus for obtaining tissue metabolism information from a living body member. The apparatus consists of a large high-intensity electromagnet with an inner space having a uniform magnetic field, for receiving the body member. The space has a probe coil mounted therein with which the body member is engageable. For phosphorus-31 metabolite, there is provided a 24.33 MHz RF generator connected through a control logic section and a driver unit to the probe coil via a transmitter/receiver switching unit arranged to in effect switch the probe coil from a normal connection with a demodulation circuit to the driver unit responsive to a burst of RF pulse energy applied to the switching unit by the driver unit via the control logic section by command of a computer. The control logic section controls the system so as to first apply short pulses of the RF signal to the probe coil for a predetermined excitation time period, gating-off the demodulation unit.

Abstract: A NMR apparatus for determining the relationship between work output of an exercising body member and the steady-state capability of oxidative phosphorylation of the muscle tissue as measured by the PCr/P.sub.i ratio in the tissue. The apparatus includes the large hollow magnet of the NMR system, with a radio frequency probe mounted therein, arranged to underlie a human limb, such as an arm, inserted in the magnet from one end. Adjacent to the opposite end a Cybex ergometer is mounted. A hand lever is pivotally mounted in the magnet and is connected by a link bar to the drive arm of the ergometer. The subject inserts his arm in the magnet and grasps the hand lever, performing controlled work strokes at uniformly spaced short intervals over a selected length of time, such as 10 minutes, observing the output trace of the ergometer and maintaining a constant work output intensity with each stroke. The NMR apparatus provides curves of the NMR response at 24.

Abstract: A magnifying indicator for a thermometer or similar columnar instrument, said indicator consisting of a one-piece body of transparent plastic formed with a cylindrical base block and an upstanding lens on the front portion of the base block. Opposite the lens the base block is formed with a rearwardly-facing vertical V-groove in which the columnar instrument is receivable. A U-shaped wire spring is anchored at one side of the groove and transversely overlies the groove. The spring is arranged to allow the columnar instrument to be slipped into the groove so as to engage against the flat sides thereof and thereafter to clamp the instrument in the groove to prevent angular disorientation of the lens relative to the columnar instrument, while permitting sliding adjustment of the magnifying indicator along the instrument scale.

Abstract: A clock alarm deactivation system for a clock with an alarm switch for turning on an alarm device at a preset time. The alarm device can be deactivated by manually operating in sequence a series of pushbutton switches. Each pushbutton switch in the sequence is randomly selected and is identified by an individual indicator light. When setting the clock alarm, the user adjusts a selector control that will select the number of pushbutton switches that the user will be required to push in sequence in order to totally deactivate the alarm device. When the clock alarm sounds at the preset time, simultaneously the first pushbutton switch randomly selected is activated and its identifying indicator light is turned on. After the user pushes the first-activated pushbutton switch the alarm is temporarily silenced and the device will randomly select the second pushbutton switch in the sequence and turn on its respective indicator light.

Abstract: An alarm clock with an alarm system which can be deactivated by means of either a local or remote manually operated push button switch which must be held in a depressed condition for a predetermined period of time in order to effectively deactivate the clock alarm. Means is provided to adjust the length of required switch hold-down time. An indicator is provided for showing the completion of the required hold-down period. In the case of remote deactivation, wherein the user must walk to the location of the push button switch, a radio link is employed to couple the remotely located switch with the locally positioned clock alarm system and to provide the desired alarm deactivation. The completion of the hold down period is signalled either by visual indicating means or by audible sounding means.

Abstract: A liquid repetitive dispensing device consisting of a main body containing an elongated square ratchet bar slidably engaged with the main body, the ratchet bar having two adjacent longitudinal faces having ratchet teeth of different pitch. A push button is provided in the main body having an inclined bore containing a spring-biased pawl drivingly engageable with the ratchet teeth responsive to inward movement of the push button. An abutment bushing surrounds and conformably receives the ratchet bar and is adjustably rotatably received in the main body. The bushing is formed with inclined bottom cam surfaces extending toward the ratchet teeth and being engageable by the pawl. The degree of driving engagement of the pawl with the teeth is in accordance with the axially adjusted position of the bushing. A yieldable detent in the main body is selectively receivable in axially spaced recesses in the bushing to lock it in adjusted position relative to the main body.

Abstract: A solar energy collecting assembly consisting of a rectangular supporting frame with a plurality of vane structures mounted in parallel relationship therein. Each vane structure consists of a generally Z-shaped bar member of extruded aluminum with an integral conduit at the corner between the lower flange and the web of the bar member. The conduit has extended end portions pivotally engaged through the front and rear supporting frame elements and these end portions are clampingly communicatively connected to respective inlet and outlet liquid manifolds located outwardly adjacent the front and rear frame elements. Each vane structure has a top flange provided with a blackened surface acting as a radiation absorber which generates heat, this heat being conducted to the associated conduit via the adjacent web portion of the bar member.

Abstract: A solar panel assembly consisting of a shallow rectangular housing with a glass top cover, the housing enclosing a plurality of side-by-side metal plate members with depending longitudinal webs connecting the plate members to longitudinal liquid flow tubes, the plate members, webs and flow tubes being integrally formed by extrusion. Respective enlarged transverse header tubes are connected by coupling sleeves to the opposite ends of the flow tubes, the header tubes extending through and being secured in opposite side walls of the housing, so that the metal plate extrusions are supported in the housing. The plate members are interlocked in coplanar relationship by slidable tongue-and-groove connections at their longitudinal edges. Silicon photovoltaic cells are mounted in row-and-column arrays on the plate members.

Abstract: A screen printing frame assembly for use with thermoplastic inks. The frame has opposite frame rail portions with thermoplastic resin material thereon. A stainless steel printing screen has low-resistance opposite end portions overlying and thermoplastically secured on said resin material, the remainder of the screen between the low-resistance portions being of higher resistivity and being spaced from the resin material. Respective electrical connection terminals are mounted on the low-resistance portions for connecting a source of current to the screen. The screen portion between the low-resistance portions is thus heated to a working temperature when energized by the electrical current source, while the low-resistance portions remain relatively cool and do not melt the thermoplastic resin material on which they are secured.

Abstract: The pressure limiting device is used with a diaphragm pump for controlling the forces applied to the diaphragm. The device includes a body having a pressure control chamber therein. The body has an inlet to the chamber which is adapted to be coupled to a working chamber in the diaphragm pump. The body is provided with a first outlet opening from the control chamber and the body has therein a first poppet valve including a first valve seat at the first outlet opening facing into a larger cross-section first poppet-valve chamber. A first poppet is positioned in the first poppet valve chamber and engages the first valve seat. A spring assembly is situated in the first poppet valve chamber for urging the first poppet against the first valve seat at a first predetermined force. An outlet opening from the first poppet-valve chamber is adapted to be connected to a sump for the working liquid.

Abstract: An alarm clock with a local alarm system including a movement-operated switch, a relay with normally closed contacts, and an audible alarm device connected to the power lines through the movement-operated switch and said relay contacts. Said relay is energized by a circuit including a switch closed by lifting an operating knob, or in an alternative form, by lifting the entire clock. The system includes time delay relay latching means to prevent immediately latching the alarm circuit open but requiring the user to maintain the lifting force for a predetermined delay period, sufficient to produce wakefulness of the user, after which the alarm circuit is latched open. A signal lamp shows the delay period to be in effect until the delay period has been completed, thereby requiring the user to manually maintain the lifting force until the lamp becomes extinguished.

Abstract: An alarm clock with a local alarm system including a movement-operated switch, a normally-closed key-operated switch and an audible alarm device connected in series across the power lines. The switch-operating key may be remotely located so as to require the user to leave his bed in order to obtain the key, insert it in the key-operated switch, and turn the key so as to shut off the alarm. The system may include a time delay latching arrangement to prevent immediate latching the key switch open and to require the user to hold the key turned for a predetermined delay period, sufficient to produce wakefulness of the user. A signal lamp shows the delay period to be in effect until the period has been completed, thereby requiring the user to manually hold the key-operated switch open until the lamp becomes extinguished.

Abstract: The float valve assembly is mounted in a liquid drain trap housing having an upper centrally located orifice and a lower centrally located outlet orifice and includes a float, an upper pin fixed to the top of the float and received in the upper orifice, a lower pin fixed to the bottom of the float in axial alignment with the upper pin and received in the lower orifice, a conical or semispherical valve seat at the lower end of the lower pin, and a mating valve seat-forming O ring clamped in the lower orifice. The upper and lower orifices are in axial alignment and form an alignment configuration for the float valve assembly by receiving therein the upper and lower pins and maintain them in generally vertical alignment. This ensures proper vertical seating and unseating of the conical or spherical valve seat on the O ring valve seat which is clamped within the lower orifice.

Abstract: An alarm clock system consisting of a clock with a local alarm circuit and provided with a remotely located turn-off control device actuated by a push button switch. The local alarm system, in response to an electrical signal produced by the clock at a preset time, generates a first sound in the form of a continuous tone lasting for 40 seconds, followed by a strident pulsating sound for another 40 seconds. To turn off the alarm, the user must get out of bed, walk to the remote location, and then depress the switch push button and hold it for a predetermined time, such as 12 seconds. Actuation of the push button switch causes the remote control component to generate and transmit a radio signal, which is detected by a radio receiver in the alarm clock local component. Also, an indicating lamp on the remote component is energized and goes off after 12 seconds of continuous depression of the push button.

Abstract: A toilet assembly including a hinged toilet seat with a rigidly connected coaxial housing containing a roll of paper toilet seat covers sheets the paper being transversely perperated so that the covers can be readily detached, and the housing having a longitudinal dispensing slot for the covers. The assembly also includes an upstanding cistern with a front vertical recess to receive the toilet seat. The cover sheets are formed to define front and rear flaps which can become partially immersed in the water in the associated toilet bowl so as to shield the front and rear inside surfaces of the bowl.

Abstract: A flow control device for connection between a shower head and its supply pipe. The device consists of a fitting with one end attachable to the supply pipe and the other end attachable to the shower head. The fitting has a transversely slidable cylindrical valve element projecting on opposite sides of the fitting and provided with enlarged push buttons on its ends. The valve element has a peripheral groove which can be adjusted as to position in the bore of the fitting to give a desired rate of flow, or which can be moved away from the main bore to cause the valve element to shut off the flow, without requiring operation of the associated hot and cold water supply faucets. An air inlet passage is provided at the outlet side of the fitting to allow air to be aspirated into the water stream by venturi action, enabling the air to be mixed with the water in the spray head to thereby provide a regulated amount of aerated water in the shower head discharge.

Abstract: A lounge having an angularly adjustable main forward section and a plurality of side-by-side longitudinal rearwardly extending additional sections adjustably pivotally connected to the main forward section, each longitudinal section consisting of a plurality of independently angularly adjustable articulated segments. Manually controlled means are provided for locking the main forward section and the longitudinal sections and articulated segments in adjusted positions to provide a selected desired surface contour, for example, to facilitate achievement of desired positions in the performance of sexual acts.

Abstract: A long-handled dispenser device for applying lotion or other liquid material to parts of the body. The device consists of a long arcuately curved tubular handle employed as a reservoir for the material, with a screw plug at its free end. The handle is attached to a head member having a large applicating sponge. The head member has a plunger-operated suction pump connected to rigid inlet tubing extending through the handle to its free end region. The pump has a discharge spout directed into the sponge. A snap-on detachable cover tray is provided on the head member, serving as a lotion-collecting receptacle to receive lotion from the pump when the pump is actuated, to form a shallow pool to moisten the bottom portion of the sponge. For applying the lotion, the tray is detached from the head member. Subsequently the sponge may be dipped into the tray for remoistening.