Abstract: The invention is a pulsed, hydraulically actuated fuel injector ignitor system for an internal combustion engine with combustion chambers and a fuel injector, comprising an outer shell containing a fuel inlet cavity, a fuel supply and scavenging chamber supplied with fuel from the inlet cavity through the rod bore of the injector rod, and a fuel pressure chamber, which is resupplied through check valve from the supply chamber after each injection has taken place. The pressure chamber has a poppet valve responsive to a predetermined fuel pressure in the pressure chamber, resulting from the intrusion of injector piston into the pressure chamber, thereby spraying fuel into the combustion chamber through a hot-throated venturi and igniting the fuel as it passes through venturi. Concentric open-ended cylinders form the control body assembly and are positioned between the base assembly and the fluid manifold head cap and having alternate open-ended cylinders in communication with sliding contact.

Abstract: A device for exercising various extremities of the body is disclosed. The device is particularly useful for exercising one's feet, ankles and leg muscles, while the user is in the sitting position. The exercise device consists of a stationary base (12) and a movable platform (14) which is pivotally connected to the base for pivoting and oscillating motion with respect thereto. The platform (14) is suspended above the base (12) so that the platform is freely capable of both pivotal and oscillatory movement without touching the top edges or vertical sides of the base and yet, the platform cooperates with the base to completely enclose the machine.

Abstract: In an internal combustion engine with combustion chambers (CC'S) (538), a fuel injector (FI) comprising an outer shell (628) containing a fuel supply cavity (FSC) (530) having an openable valve (546) for storing fuel, a control body assembly (CBA) (520) within the outer shell (628). A rod (512) extends from FSC through CBA along the length of the outer shell with piston (518) formed thereon. An internal bore (534) extends therethrough from the side of a closed end of rod (512) which is movable into the FSC for carrying fuel from the FSC to the CC. A rod supporting base assembly (562), responsive to a predetermined CC pressure increase causes rod (512) to enter FSC, closing valve (546) to cease fuel from entering FSC and exposing bore (534) to force the pressurized fuel in the FSC down bore into the CC. Concentric open ended cylinders (OEC'S) (510) are positioned between the CBA and the base assembly with alternate OEC'S (514) secured to CBA and the other OEC'S (516) secured to base assembly (562).

Abstract: In an unthrottled fuel injection type internal combustion engine, a controlled injection logic to generate a first pulse train whose frequency varies with the accelerator position, N cylinder chambers (CCH's) 11, FIG. 1 ), each with a piston, and a distributor (111, FIG. 4) comprising N first devices and a rotor 109 for generating a second pulse each rotation past a first device, N fuel injection/ignition devices (FIGS. 1-2) each having a fuel ignition element (FIE) extending into a CCH to ignite the injected fuel and a fuel injector for injecting fuel towards each FIE at certain time intervals after the rotor passes the associated first device, a first counter for measuring, in time/degree of engine crankshaft rotation (ECR), the time required for M.degree. of ECR, and for determining the rotor angular velocity.

Abstract: A vehicle warning system (1) is disclosed. The device includes a main housing (2) to which is attached a sound generator (7), a lighting system (5), a mounting bracket (4) which is used to attach the device to an emergency vehicle, and a trim ring (6) which conceals the mounting means of the device. As a sound signal is produced by the generator (7) it passes through a nozzle (9) and an aperture (14) into a deflector means (3) which is designed to expand and direct the sound signal through carefully proportioned chambers (30) and (33) of the deflector (3) so as to direct the sound signal against the closed portion (15) of expander horn (16) and out the open portion of the expander horn (16). In operation the sound generating system is attached to an amplifier of well known design and is capable of producing a variety of sound signals.

Abstract: A removable light and receptacle for use on a boat is disclosed. The light housing (12) which supports fluorescent bulbs (30) (32) is removably attached to the receptacle (38) by means of tapered pin (34) which is rotated and pressed into holes (36) (37) of receptacle (38) which in turn is adapted to be attached to the gunwale of a boat. The mating surfaces of the pin (34) and the receptacle holes (36) (37) are formed of a high strength material such as ABS plastic and are critically dimensioned to utilize the adhesion characteristics of the material to maintain a strong connection between the light housing (12) and its receptacle (38).

Abstract: FIGS. 1-5 show a device (10) for selectively lifting and tilting a wheelchair (14) and its occupant to a convenient position for performance of a service, such as a dental work or beauty salon work, upon the occupant of the wheelchair. An alternative embodiment of the invention is wheelchair handling device (110), which is disclosed in FIGS. 6-10, inclusive. Device (110) comprises housing (102), wheelchair receptacle (104), backrest (106), wheels (108 and 113), foot-operated control box (112) having dual footpad switch (114) for raising and lowering housing (102) and dual footpad switch (116) for tilting the receptacle (104) forward and backward. Switch (114) operates motor-driven lift system (118), which comprises a pair of scissors jacks (136) and vertical worm gears (134 and 135) driven by a chain (126) and reversible motor (122).

Abstract: An improved apparatus for stress testing a plurality of electronic circuits each formed on a wafer-like chip along at least one edge thereof and comprising a separate socket (60 of FIG. 1) having a set of contacts for receiving and holding one of the wafers with the set of contacts making contact with the edge contacts of the wafer it is holding and a plurality of terminal pins which are connected to the wafer edge contacts through the set of contacts and with the terminal pins of each socket being arranged in identical patterns. The apparatus comprises a multilayered printed circuit board (FIG. 4) having a plurality of identical groups of conductively plated holes (PTHs) (FIG. 15) formed therein for each socket and with each group of PTH's comprising the plurality of pin terminal holes (FIG. 15) arranged to receive the terminal pins of one of the sockets and a plurality of via holes (FIG.

Abstract: The invention is a self contained infant restraining device (10) used for performing cardiopulmonary resuscitation or other emergency treatment on a patient up to 2 years old. The device (10) has 2 sections (12 and 14) which are normally attached together by use of latches (16). Top section (12) is used to carry and restrain the infant's body. Bottom section (14) contains 2 drawers (52) which are used to carry drugs, medical supplies and instruments for treatment of the infant patient. The top section (12) may be quickly released from bottom section (14) if the user wants to make top section (12) lighter and more portable. The infant's body is placed in indentation (36) of the top surface (28) and securely restrained by a plurality of straps (44) using hook and pile fasteners (46). The infant's head is restrained in head indentation (26) which is equipped with two small sand bag pillows (32) attached to indentation (26) by hook and pile fasterners (33) and (34).

Abstract: An improved three mirror collimator (or telescope) having a focal plane (38) positioned on a first side of the optical axis (44) and which directs a diverging beam of radiation upon concave tertiary mirror (36) which is also positioned on the first side of optical axis (44) and which reflects the received radiation to an on-axis convex secondary mirror (34) in a converging pattern. Secondary mirror (34) reflects the received radiation in a first converging, then diverging pattern upon concave primary mirror (32) which is positioned on the second side of optical axis (44). Primary mirror (32) reflects the received radiation as a collimated beam to the real entrance pupil (30) which is located either on or near the optical axis but which need not be precisely centered on the optical axis. When used as a telescope the radiation enters the entrance pupil (30) as a collimated beam and is received by primary mirror (32).

Abstract: An insulating enclosure for recessed ceiling exhaust fan is disclosed. The insulating enclosure (10) comprises a rectangular frame (22) attached to the frame (24) of the lower panel (18). The frame (22) of the insulating enclosure (10) fits snugly against the ceiling (16). The insulating enclosure (10) further comprises a removable insulating panel (26) which fits snugly into the rectangular frame (22). One side of the insulating panel (26) has a lip (28) which fits into a channel (30) on the inside of one side of frame (22). Thus, lip (28) may be inserted into channel (30) so as to hold up one side of panel (26) while the other side is pushed into place in its frame (22). After panel (26) is in position it will be held up on one side by lip (28) and on the other side by latch (32).

Abstract: A device (10) for selectively lifting and tilting a wheelchair (14) and its occupant to a convenient position for convenient performance of a service such as dental work upon the occupant of the wheelchair wherein there is a base (16), a platform (24), a support frame (64) attached between said base and platform, a reversible motor (40) and jack mechanism (42 and 56) attached between the base (16) and support frame (64) for lifting or lowering the support frame (64), a reversible motor (82) and actuator mechanism (84) attached between the support frame (64) and the platform (24) for tilting the platform (24) in a desired direction, safety belts (28) for securing the wheelchair and its occupant to the platform, two sets of switches (32 and 34) for selected actuation of the device (10), one (32) of which may be operated by hand and the other (34) being foot-controlled.

Abstract: Materials and dental procedures are disclosed for the treatment of resorbed or diseased periodontal and alveolar bone tissues. Biocompatible nonresorbable ceramic mixtures and compounds containing silicon, calcium, phosphorous, and sodium oxides and flurides are prepared as powders or spheres and applied to defects or areas where it is desired to recontour the bone structure. This technique permits an improved method for corrective peridontal procedures and for alveolar ridge augmentation.

Abstract: A vehicle warning system (1) is disclosed. The device includes a main housing (2) to which is attached a sound generator (7), a lighting system (5), a mounting bracket (4) which is used to attach the device to an energency vehicle, and a trim ring (6) which conceals the mounting means of the device. As a sound signal is produced by the generator (7) it passes through a nozzle (9) and an aperture (14) into a deflector means (3) which is designed to expand and direct the sound signal through carefully proportioned chambers (30) and (33) of the deflector (3) so as to direct the sound signal against the closed portion (15) of expander horn (16) and out the open portion of the expander horn (16). In operation the sound generating system is attached to an amplifier of well known design and is capable of producing a variety of sound signals.

Abstract: A lightweight, free-standing, expandable shelter (10) providing protection against chemical and biological agents and against nuclear fallout. The shelter (10) has a frame comprising a series of U-shaped ribs (12) spaced and held parallel by a series of reinforcing members (16) connecting each adjacent pair of ribs (12) on each side of the shelter (10). A cover (11) made of flexible material which is resistant to chemical and biological agents is attached to the frame. An airtight floor (18) is attached to the cover material (11) so that the shelter (10) can be pressurized to a pressure of about one inch water gauge above ambient pressure, to prevent reverse air flow of contaminated air into the shelter (10). A blower (20) for pressurizing the shelter (10) and a filter (22) capable of filtering out chemical and biological agents are connected to the shelter (10).

Abstract: A heated sock (14 or 16 of FIG. 1) for keeping the wearer's foot warm in a cold environment and including a resistive heating unit (10 or 12) secured in two of the socks, a battery source (76 FIG. 2) having first (78) and second (80) terminals and which is carried on the wearer's body, and switches (36 and 64) controllable by the wearer for acting in combination with the resistive heating unit (10 or 12) to selectively cause different and controllable amounts of electric current from the battery source (76) to flow through the resistive heating unit (10 or 12) to thereby generate different and desired amounts of heat in the sock (14 or 16).

Abstract: An injector (10) for delivering fuel directly into an engine combustion chamber (11) in response to compression within the combustion chamber (11). The injector (10) has a housing (14) with an injector rod (22) slidably mounted within housing (14). Secured to the injector rod (22) is a primary piston (24), a metering spool (25), and a secondary piston (32). The metering spool (25) is located within a metering chamber (26) having a bypass chamber (50) in which is located two series of electrodes (60 and 62) which are connected to an electrical system which sequentially provides an electrical signal to the connector (56) as dictated by the needs of the engine. As the electrical signal is supplied to connector (56), an electro-rheological fluid (64) contained within the metering chamber (26) is converted from a liquid to a substantially solid condition, thereby limiting the travel of the metering spool (25) and the secondary piston (32).

Abstract: A retractable line storage device (10) is disclosed. Most particularly the device provides a storage and automatic retrieval device for mooring lines as used on small boats. A hollow housing (18) and more specifically its spindle 26 is adapted to retain reel (28). A mooring line (14) is secured to and wrapped around the reel. The free end of the mooring line passes through top plate (12) and is attached to semi-spherical handgrip (16). A cup (15) is formed in the upper surface of top plate (12) for reception of the handgrip thus providing a flush mounting wherein no part of the device protrudes above the surface of top plate (12) when the line is in its retracted position. Finger grip sumps (19) are provided for access to the fingergrip. A helical spring (31) is attached to housing (18) and to reel (28) for automatic rewinding of the line (14) when storage of the line is desired. A cover plate (29) is provided to facilitate access to the parts contained within housing (18).

Abstract: A variable-speed drive unit for a chain drive comprising a drive wheel (12) which contains a series of radially mounted threaded rods (14) which pass through internally threaded blocks (22), upon which are selectively mounted free wheeling sprockets (28) and rigidly connected driving sprocket segments (30); the radially inner end portions of the threaded rods (14) being rotatably mounted into a hub (10) and rigidly attached to a primary bevel gear (34) which engages secondary bevel gears (36) (38) mounted on either side thereof; the secondary bevel gears (36) (38) being attached to actuator disks (40) (42) mounted on either side of the unit; the actuator disks (40) (42) being disposed for selective engagement by spring biased actuator arms (54) (56) whereby the associated bevel gears (34) (36) (38) will be rotated thus moving the blocks (22) selectively up or down the threaded rods (14) so as to effectively vary the diameter of a circle described by the chain sprockets (28) and sprocket segments (30) as they