Abstract: A pump assembly comprising a housing having a cavity therein, an inlet leading to the cavity and an outlet leading from the cavity and a wobble plate mounted for nutating movement in the cavity. The wobble plate divides the cavity into first and second pumping chambers, and during its nutating movement, liquid entering the inlet into the pumping chambers is pumped by the wobble plate through the outlet. The pump can be driven by a motor.

Abstract: A feedscrew system includes a conveyor for moving articles, at least one feedscrew for spacing the articles, a first sensing arrangement for sensing the occurrence of a gap between any two adjacent articles as the articles move toward the feedscrew, and control components responsive to the first sensing arrangement for controlling the rate at which the feedscrew operates in order to maintain a jam-feed condition. The control components may be configured to reduce the rate at which the feedscrew operates and/or to disengage a clutch in order to stop the feedscrew. A second sensing arrangement may be included in order to delay clutch disengagement when a second conveyor at the exit end of the feedscrew is engaging the top portion of an article within the feedscrew.

Abstract: A compound selected from the group consisting of those having the formula: ##STR1## and pharmaceutically acceptable acid addition salts thereof, wherein R.sub.1 and R.sub.4 are independently selected from the group consisting of H and alkyl radicals having 1 to 4 carbon atoms; the R.sub.2 s are each H or alkyl radicals having 1 to 4 carbon atoms or are, together, oxo; the R.sub.3 s are each H or alkyl radicals having 1 to 4 carbon atoms or are, together, oxo, provided that the R.sub.2 s or the R.sub.3 s are alkyl radicals; the 2-imidazolin-2-ylamino group may be in any of the 5-, 6, 7- or 8-positions of the quinoxaline nucleus; and R.sub.5, R.sub.6 and R.sub.7 each is located in one of the remaining 5-, 6-, 7- or 8-positions of the quinoxaline nucleus and is independently selected from the group consisting of Cl, Br, H and alkyl radicals having 1 to 3 carbon atoms.

Abstract: A flexible induction heating coil comprising an elongated flexible core having proximal and distal ends. The core includes a plurality of core segments flexibly interconnected to make the core more flexible than the individual core segments. An elongated flexible inductor extends along the core.

Abstract: A method of rehabilitating underground pipes which comprises the steps of: (a) forming a liner pipe (5) by winding a strip (4) made of a synthetic resin into a helical shape so that the side edges of the convolutions of the wound strip (4) are interengaged with each other; (b) continuously introducing the liner pipe (5) into an underground pipe (1) while the liner pipe (5) is being advanced inside the underground pipe (1); inserting a slip restraining member in the form of a wire rod (6) continuously to the interconnected edges of the convolutions of the said strip (4), and then removing the said strip (4) when the diameter of said liner pipe (5) is to be increased at the same rate as said strip (4) for forming said helical liner pipe (5) is conveyed.

Abstract: A suture comprising a needle including a substantially straight section terminating at one end in a point and a curved section joined to the other end of the straight section. The straight section and the curved section lie in substantially the same plane. The curved section terminates in a proximal end portion, and a suture is coupled to the proximal end portion of the curved section. This needle can be used in a method for closing an incision in the sclera or cornea with only a single stitch.

Abstract: An apparatus for inserting a foldable lens into an eye through an incision in the eye comprising: a paddle permanently affixed to the apparatus, and sized and adapted to contact the lens in the unfolded state; an elongated tube including a distally open interior space sized and adapted to receive the paddle in contact with the lens in the folded state, and a distal end portion sized and adapted to be inserted into the eye through the incision, the tube being cooperable with the paddle to fold the lens into the folded state as the lens in contact with the paddle is received through the distal opening into the interior space; and a mechanism to provide relative movement between the paddle and the tube.

Abstract: A combined visual directory and spreadsheet for graphic files is disclosed. Graphic files can be selectively associated with cells of a matrix. A selectable portion of the matrix containing miniaturized versions of the graphic files associated with the cells of that portion is displayed on an editing monitor. Graphic functions of various kinds can be assigned to displayed cells by the operator to produce modification, animation, or display of graphics associated with selected cells.

Abstract: An ocular telescopic lens system for low-vision conditions such as macular degeneration includes an intraocular lens having a converging lens portion and a diverging lens portion, and multiple-element spectacles having anterior and posterior lenses arranged to converge light toward the diverging lens portion. The intraocular lens includes an optic with a generally continuous rearward surface that combines with a first portion of the forward surface as the converging lens portion and with a second portion of the forward surface as the diverging lens portion, while the anterior and posterior lenses of the spectacles may have concave surfaces, combine to serve as an objective lens, and provide at least +8 diopter power.

Abstract: A method of extending discharge lamp life includes slowing electrode deterioration by powering the discharge lamp so that a lamp arc current having a reduced crest factor results, either by retrofitting an existing discharge lamp system with a waveform conditioning module, by powering the discharge lamp with a ballast producing a squarewave-type waveform, or by slowing deterioration of an emissive coating on a discharge lamp electrode by such means as preheating the electrode prior to use in order to bond the emissive coating on the electrode. A discharge lamp system includes a discharge lamp and components operatively coupled to the discharge lamp for supplying a lamp arc current to the discharge lamp that has a reduced crest factor and controlled lamp watt loading, such as a ballast configured to supply a lamp arc current with a waveform that is substantially a squarewave or an existing ballast retrofitted with waveform conditioning circuitry that causes the lamp arc current to have a reduced crest factor.

Abstract: A method for generating chlorine dioxide which involves contacting a stable precursor with a transition metal in a buffered aqueous medium.

Abstract: A compound selected from the group consisting of those having the formula: ##STR1## and pharmaceutically acceptable acid addition salts thereof, wherein R.sub.1 wherein R.sub.1 and R.sub.4 are independently selected from the group consisting of H and alkyl radicals containing 1 to 4 carbon atoms, R.sub.2 and R.sub.3 are independently selected from the group consisting of H, OXO, and alkyl radicals containing 1 to 4 carbon atoms, the 2-imidazolin-2-ylamino group may be in any of the 5-, 6-, 7- or 8- positions of the quinoxaline nucleus, and R.sub.5, R.sub.6 and R.sub.7 each is located in one of the remaining 5-, 6-, 7- or 8- positions of the qunioxaline nucleus and is selected from the group consisting of Cl, Br, H and alkyl radicals containing 1 to 3 carbon atoms. Such compounds, when administered to a mammal, provide desired therapeutic effects, such as alteration in the rate of fluid transport in the gastrointestinal tract, reduction in intraocular pressure, and increase in renal fluid flow.

Abstract: An apparatus useful for cleaning the debris-laden transmission of an assembled bicycle having a bicycle frame, the transmission including chainrings and a free wheel gear cluster. The apparatus comprises a first reservoir adapted to be secured to the bicycle in proximity to the chainrings, the first reservoir including a first receptacle adapted to hold a quantity of liquid cleaning composition and to collect debris removed from the chainrings; and a second reservoir adapted to be secured to the bicycle separately from the first reservoir in proximity to the free wheel gear cluster, the second reservoir including a second receptacle adapted to hold a quantity of liquid cleaning composition and to collect debris removed from the free wheel gear cluster.

Abstract: An animal dish is disclosed which includes a moat sized and adapted to be filled with water to inhibit crawling insects from having access to the food or drink in the dish. The dish, which includes two elements, is configured to inhibit food or drink from the dish from passing into and contaminating the water in the moat.

Abstract: A file drawer system for containing and positioning a plurality of file folders comprising a file drawer and forward and rear file positioners for positioning the file folders so that they are in an inclined position in which they are inclined rearwardly as they extend upwardly. The positioners are releasably coupled to the forward and rear walls of the file drawer, respectively. The positioners engage the forwardmost and rearwardmost file folders to urge the file folders toward the inclined position.

Abstract: A xenograft replacement ligament to replace a damaged anterior cruciate or other human ligament includes a ligament of suitable size and strength that has been harvested from a donor animal with a bone piece at least one end to preserve intact a substantial portion of a first natural ligament-to-bone attachment structure of the donor animal. Once harvested, it may be tanned and otherwise processed with glutaraldehyde solution. Installation includes pinning and otherwise attaching the bone piece at the natural attachment site of the patient to more closely replicate the natural ligament-to-bone attachment structure being replaced. The replacement ligament may be harvested with a bone piece at each end for this purpose, with each of the bone pieces then being attached at a natural attachment site of each of two bones of the patient.

Abstract: Complex small objects such as ophthalmic lenses are quickly and accurately fabricated from plastic or glass blanks of ablatable material such as plastic or glass by cutting, shaping, and radiusing the blank entirely by laser light, using appropriate masks and focusing optics.