Abstract: The present invention relates to novel compounds having nitrogen-containing, saturated bicyclic cyclopentane-fused rings which are geminally disubstituted with phosphonate groups. Most preferred compounds of the present invention have the general structure: ##STR1## The present invention further relates to pharmaceutical compositions containing these novel compounds. Finally, this invention relates to methods for treating or preventing diseases characterized by abnormal calcium and phosphate metabolism by utilizing a compound or pharmaceutical composition of the present invention.

Abstract: A switch assembly for remote selection and two-way operation of individual motors for vehicle rearview mirror adjustment. A quadulateral touch frame is gimballed by means of a nested yoke on a housing for movement about two orthogonal axes and is superposed for contacting an actuator frame having four spaced pins extending commonly therefrom through the housing, each for actuation of an individual switch mounted on a circuit board. User movement of any one of the four sides of the touch bar actuates a pair of the switches, only one of which is snap-acting. A separate selector nested in the touch frame operates sliding wipers for selected switching between pairs of contacts on the circuit board for selection of operational mode for the four main switches.

Abstract: Fuel is activated prior to combustion in an engine by an electrical arc established across an annular gap between two electrodes, and sustained for a significant portion of the injection cycle. The vaporized or gaseous fuel is directed through a spiral recess to be caused to flow vortically and cause the arc to migrate about the annular gap to reduce electrode erosion and increase exposure of the fuel to the activating effects of the arc. The arc is formed by separating contacting electrodes which applying a current to the electrodes. One of the electrodes is movable under the influence of the pressurized fuel to cause separation from the other fixed electrode, so that the arc is established as fuel begins flowing. The electrodes have opposing rimmed cavities, with fuel flow shifting the arc radially inwardly, migrating to extend between the inner wall of each cavities, and around which the arc rotates under the influence of the vortical fuel flow.

Abstract: A closed-loop torque demand power steering system suitable for large off-highway and other vehicles has no mechanical linkages or hydraulic connections entering into the driver's cab. A torque demand signal is produced electronically without any separate electromechanical torque sensor. Upon starting, the system provides synchronization between steering and steering wheels without initial corrective motion of either member. During operation the direction of the steered wheels does not drift relative to the position of the steering wheel. The circuit includes protection against spurious steering signals that might otherwise occur if the steering is moved back and forth mechanically on a transition boundary of a position sensor. In the event of certain types of failure of its primary steering system it automatically changes over to an open-loop secondary steering system that is controllable by the same steering wheel, and that has components in common with the primary system.

Abstract: A disc brake or clutch assembly having rotatable rotor discs and non-rotatable discs which are movable axially into engagement. The rotatable rotor discs are secured to an annular splined mounting member which has a plurality of grooves therein to circulate cooling air. The rotor discs have a plurality of holes which enable air to flow between the rotor discs.

Abstract: A thermostatic controller for a waterbed heater of the type where the water bladder is enclosed in a foam casing with the controller disposed between the bladder and the side of the casing. The controller has a liquid filled bulb and capillary temperature sensor disposed in a sensing chamber isolated by dead air from a separate walled switching chamber having a diaphragm type actuator connected to the capillary tube for moving a lever spring biased against the actuator and operable to actuate a snap switch. An adjustment camshaft extends externally of the controller housing for adjusting the bias on the lever for changing the temperature at which the snap switch is actuated.

Abstract: In an anti-lock brake control system for a vehicle (1) equipped with tandem axles (3), incipient or actual lockup is sensed on the forward or more lightly loaded axle (10) of the tandem axle pair, which sensing gives early warning of incipient lockup of the rear or more heavily loaded axle (12) of the pair.

Abstract: A fluid controller (17) is disclosed for controlling the flow of fluid to a steering cylinder (19). The controller includes a fluid meter (51) and a valving arrangement (49) including a valve spool (65) and a sleeve (67), which define a main fluid path including a main variable flow control orifice (121), the fluid meter (51), a variable flow control orifice (123), the steering cylinder (19), and a variable flow control orifice (125). In accordance with the invention, the spool and sleeve define an amplification fluid path including a variable amplification orifice (129) in parallel with the main fluid path, and disposed to amplify the flow of fluid through the meter. In one embodiment of the invention, the amplification fluid path communicates with the main fluid path upstream of the main variable flow control orifice, and at a location downstream of the fluid meter, but upstream of the variable flow control orifice (123).

Abstract: A closed hydraulic system (22 or 200) is provided for transmitting steering movement to a rear wheel steering assembly (16) in response to steering movment of a front wheel steering assembly (14). The front wheel steering assembly is controlled by a steering wheel (18) and a power steering assembly (20). The closed hydraulic system (22) includes a pump assembly (50) and an actuator assembly (52) connected together by conduits to define closed fluid flow branches (104,106) for moving a piston (90) in the actuator assembly in response to movement of a piston (72) in the pump assembly. In one embodiment (22) movement of the actuator piston is transmitted to the rear wheel steering assembly via a cam assembly which effects same direction rear wheel steering for rather small front wheel steering angles and which effects opposite direction rear wheel steering for greater front wheel steering angles. In another embodiment (200), the actuator piston (214) is connected directly to the rear wheel steering assembly.

Abstract: A laser distance gauge measures the distance and shape of a target by alternately performing (a) a Doppler shift measurement during optical scanning of the target's surface and/or motion of the target and (b) a chirp measurement with a chirp frequency laser signal. To ascertain changes in radial distance from the gauge to the target, the Doppler shift information is integrated and the result is combined with absolute distance measurements made in the chirp mode. A single CW laser, which operates single frequency, serves for both types of measurement. A computer changes the gauge from Doppler mode to chirp mode when the Doppler shift reaches a predetermined amount. When a chirp measurement of absolute distance is completed it reverts to Doppler mode.

Abstract: An in-axle wheel speed sensor exciter rotor assembly (100) for sensing the rotational speeds of a drive axle ring gear (14/30) and a drive axle differential side gear (48) is provided. The assembly includes a tubular member (102) having teeth (110) for engagement with slots (112) provided on the side gear hub (48a) and carrying a first exciter rotor (116) at the opposite end (114) thereof. A second exciter rotor (118) is axially retained on the tubular member axially adjacent the first exciter rotor and is rotatable relative thereto. The second exciter rotor carries a coupling device (124/128) for engagement with threaded bores (126) provided in the drive axle ring gear/carrier assembly to rotationally couple the second exciter rotor to the ring gear and to axially retain the assembly (100) within the drive axle.

Abstract: A dual speed sensor pickup assembly (140) for sensing the rotational velocity of two independently rotatable, closely axially spaced exciter rotors (116 and 118) includes two pole piece assemblies (136 and 138) having axes skewed relative to one another, but radial relative to the common axes of rotation (24) of the exciter rotors. Applications include drive axles and antilock brakes.

Abstract: A method for sensing and reacting to conditions indicative of leakage in a tire (16 or 18), the pressurization of which is measured and controlled by a CTIS (10).

Abstract: An optical gauge measures the shape of a target object by scanning a laser beam over it, (and/or measures the radial velocity of the target), by measuring the Doppler frequency shift of the reflected wave. The Doppler-shifted frequency is demodulated by a phase locked loop, which has a limited hold-in frequency range within which it is capable of staying locked on. With this invention, if the reflected wave's frequency gets close to exceeding the hold-in range of the phase locked loop, the gauge adjusts the drive frequency of an acoustooptical modulator that modulates the outbound target beam. This offsets the frequency of the target beam and keeps the return signal within the hold-in range of the phase locked loop.

Abstract: A multiple leaf spring interlock switch having a pair of contacts in each side of an A.C. supply inherently biased to open positions and operated to closed positions by a linearly reciprocably movable cam acting only against the biased of the contacts. A latch is operable to alternately latch and release the cam on successive operations to hold the contacts closed or released. An interlock system has plural slides coupled to a rotary cam which is in turn coupled to a lock member to block movement of the linearly movable cam when either slide is in a non-operated position and to release the latch when a slide is moved to a non-operated position while the cam is latched, such action also causing the rotary cam to separate the contacts. An energy storage and release mechanism provides non-reversible momentum for a depressible operation.

Abstract: A torque converter lock-up and disconnect clutch assembly (10) for an automatic mechanical transmission system (12) of the type comprising a fluid torque converter (20) drivingly interposed a drive engine (16) and a mechanical change gear transmission (14), preferably of the type utilizing a power synchronizing device (30), is provided. The torque converter lock-up and disconnect clutch structure includes an independently engagable and disengagable torque converter disconnect friction clutch (24) and torque converter lock-up friction clutch (26). A first connecting member (74) is fixed for rotation with the transmission input shaft (72) and a second connecting member (79) is rotationally fixed to the torque converter turbine (60). A first friction clutch (24) selectively engages and disengages the first and second connecting members and a second friction clutch (26) selectively engages and disengages the second connecting member and the engine driven shroud (58).

Abstract: An aluminum electrical connector lug (2) has a lug body (4) with a threaded opening (12) having an electroplated coating layer (22) with substantially the same thickness at the roots (16) as at the crowns (18).

Abstract: A power steering system suitable for large off-highway and other vehicles has no mechanical linkages or hydraulic connections entering into the driver's cab. Torque demand signals are produced in an electromechanical torque sensor that measures the deflections of a torsional spring. The system provides synchronization between steering and steered wheels upon starting, without initial corrective motion of either member. During operation, the direction of the steered wheels does not drift with respect to the position of the steering wheel. In the event of certain types of failures of its primary steering system the apparatus automatically changes over to an open-loop secondary steering system that is controllable by the same steering wheel, and that has components in common with the closed-loop primary system.

Abstract: The invention involves a method for treating or preventing a malignant hyperthermic reaction in a human or lower animal by administering a safe and effective amount of azumolene.

Abstract: A double solenoid valve especially for anti-lock braking (ABS) applications has a normally open conduit for connection to a first port fluidically in series with a normally closed conduit between second and third ports. A slow two-way path continuously connects the second port. The double valve when used in ABS can handle incipient locking, actual locking, quick releasing to normal after emergency anti-lock action, and purge modes.