Abstract: A tubular prosthesis comprising a tube having an inner end securable deeply within an outwardly-open body opening and an outer end affixed to a mounting plate. The outer tube end may be everted upon a circumferentially positioned rigid ring, the thus enlarged tube end bearing against an orifice formed in the mounting plate. A forwardly-facing bore formed in the plate coaxial with the orifice is sized to snugly receive the enlarged end of the tube. A disclosed embodiment utilizes a pair of tubes coaxially joined within the bore of the plate, one tube end being everted upon a rigid supporting ring and the everted end being received within the open adjacent end of the outermost tube. The plate may have securing means for holding the outer tube in a sealed, folded back orientation.

Abstract: An intraocular lens for replacing the natural human eye lens during cataract surgery. The lens provides fixation struts for centering the lens within the eye, and is characterized by including posteriorly extending protrusions on portions of the struts. The protrusions define generally a plane spaced posteriorly of the lens body, and thereby hold the intact posterior lens capsule away from the lens body, facilitating the performance of a posterior capsulotomy using a laser beam. The protrusion desirably is carried on the portion of the strut adjacent the lens body, and preferably extends about the circumference of the lens at least about 45 degrees of the periphery of the lens at a distance closer to the lens periphery than about one-half of the radial distance from the lens periphery to the tissue-engaging surface of the strut.

Abstract: New calcitonin analogs are disclosed which have biological activity of the same type as known calcitonins and which have a D-amino acid substituent in at least one of the positions 31 and 32 instead of the natural L-amino acid units. The calcitonin analog may be analogs of salmon, eel, chicken, bovine, porcine, ovine, murine or human calcitonins.

Abstract: New polypeptides are disclosed which have biological activity of the same degree as known calcitonins and which have amino acid substituents in position 31 instead of the naturally occuring amino acids--Thr, Ala, Val.

Abstract: An improved cabinet assembly for quick and easy assembly into various configurations. The assembly is characterized in one embodiment, by a unique joint where three framework members meet. A vertical post is equipped with vertically spaced slots. A first crossbar has prongs at one end which are snugly received in the slots, and, upon vertical movement of the crossbar, lock the crossbar to the post. A second crossbar joins the first crossbar and vertical post at mutually perpendicular angles, and is equipped with two pins which are snugly received in holes in the post. When both crossbars are in position, a bolt is inserted through the post and into the end of the second crossbar where it is secured. The bolt engages an edge of one of the prongs of the first crossbar, preventing vertical movement of the crossbar to retain it in the locked position. In another embodiment, the assembly is characterized by a drawer slide which has prongs at each end receivable in the facing slots of two parallel vertical posts.

Abstract: A pressure gauge and regulator for use in dispensing compressed air and similar gases from pressurized vessels. The device includes a linear pressure gauge having a spring loaded plunger slidingly carried within a cylinder. The plunger has an O-ring to seal against the cylinder wall, and a spring with a spring constant linearly relating longitudinal movement of the plunger to gas pressure against the plunger. A viewing port in the cylinder wall allows viewing of the position of the plunger and corresponding gas pressure. A hole in the cylinder wall may be provided to allow excess pressure to escape when the plunger seal is depressed past this hole. The device also includes a ball and seat valve for selectively releasing compressed gas from the inlet to the outlet. A piston movable in response to gas pressure at the outlet controls the valve, and a compression spring is provided for selectively urging the piston against this gas pressure.

Abstract: Surgical replacement of all or a portion of the cornea may be performed through the use of an implant having a central lenticular portion, and a peripheral portion having an outer tissue contacting surface of a biologically compatible material. The peripheral portion protects eye tissue from contact with the lenticular portion.

Abstract: A cross flow heat exchanger for heat exchange between two fluids. The heat exchanger is of the type having a stack of spaced, parallel rectangular plates; a frame enclosing the plates and having generally rectangular end walls parallel to the plates and corner posts extending between corners of the end walls; and corner supports extending between the end walls and sealingly engaging respective aligned plate corners. The heat exchanger is characterized by including a plurality of leaf springs, each having a plurality of nested but individually resilient leaves elongated parallel to the corner posts and having a generally arcuate transverse cross-section providing spaced surfaces bearing respectively against a corner post and a corner support to resiliently seal the corner post to the corner support.

Abstract: A centrifugal sprayer of the type having an electric motor driving a disc element, and coupled to a feed mechanism, wherein the feed mechanism is suspended in immersion in the liquid to be sprayed, including interchangeable hollow cone feed members having at least several surface slope angles relative to the vertex of the cone, and an outer housing around the feed mechanism, the housing having a bushing surface in supporting contact with the feed mechanism to maintain constant axial position during rotation of the cone feed mechanism.

Abstract: A roaster for grain or other particulate material. A chute is provided to feed particles adjacent the bottom of a rotating drum to reduce particle bouncing and unwanted agglomeration and to improve roasting uniformity. Vanes are provided longitudinally within the drum at an angle to lines parallel to the drum axis to improve roasting efficiency.

Abstract: A spraying apparatus for spraying a particle-laden fluid upon a workpiece. The apparatus includes a spray compartment, spray gun means in the compartment, exhaust means for exhausting air-entrained particles, and means for flowing air past the spray gun means to prevent air-entrained particles from returning to the spary gun means. The exhaust means may include means for abruptly changing the direction of air entraining the sprayed particles from a direction generally toward the workpiece to be sprayed to a direction generally away from the workpiece, whereby the air-entrained particles are urged into contact with the workpiece.

Abstract: A prosthetic device for the relief of high intraocular pressures associated with glaucoma is shown. The device includes a limp reservoir adapted to be worn against or within the eye wall, a conduit leading from the reservoir to the anterior chamber of the eye, and means for communicating the reservoir with liquid-receptive tissue. Unidirectional flow means, such as a check valve, is employed to prevent back-flow of liquid into the anterior chamber. When the reservoir is periodically compressed, aqueous humor collected in the reservoir is expelled into liquid-receptive tissue where it is absorbed or is passed to the venous system.

Abstract: A chimney damper attachable to the top of a chimney flue. The damper is characterized by including a frame mountable to and extending above the chimney flue, a damper plate suspended from the frame, above and in alignment with the flue opening, by an expansion spring, and a vertical stem resiliently attached to the damper plate and extending downwardly therefrom. The stem is mounted to the chimney flue so as to allow vertical movement thereof, and is connected by a cable to a control mechanism mounted in the fireplace opening. The control mechanism, in cooperation with the expansion spring, allows selective movement of the damper plate toward and away from the flue opening to control or eliminate movement of air through the flue. The resilient mounting of the stem to the damper plate allows the latter to pivot with respect to the stem, promoting a tight seal between the damper plate and the flue.

Abstract: A centrifugal sprayer of the type having an electric motor driving a disc element, and coupled to a feed mechanism suspended in immersion in a container of liquid to be sprayed, including an external axially supporting bushing surface about the cone feeder, wherein the lower feed opening of the cone feeder is supported by a mating conical bushing surface, thereby providing laminar flow to the inlet of the cone feeder.

Abstract: A snowmobile includes a pair of skis connected to the snowmobile frame by a forward suspension including a pair of telescopic struts which are biased to normally extended positions and are connected to a stabilizer member including a transverse torsion bar. A drive track of the snowmobile is suspended from the frame by a rear suspension, including a link pivotally connected between the frame, and a pair of slide rails and biased downwardly by a pair of torsion springs having respective ends engaged with a pivotally mounted spring end retainer which is connected to the torsion bar of the forward suspension by a pair of motion transfer links which act to "soften" the rear suspension in response to upward telescopic movement of one or the other or both of the telescopic struts.

Abstract: An intraocular lens device is provided with fixation elements for centering it in the eye. At least one of the fixation elements comprises an elongated resilient strut carried at one end by the lens and having a first portion extending outwardly of the lens generally toward circumferential eye structure, the second portion having a contacting surface engageable with the eye structure, and a third portion extending from the contact surface generally inwardly toward the lens for a distance, measured radially inwardly toward the lens axis, of at least about two-fifths of the radial distance of the contact surface from the lens axis. The third portion has a free end, providing the at least one fixation element with substantial elastic flexibility. The generally inwardly-extending third portion of the strut prevents the end of the strut from becoming captured by a peripheral iridectomy opening.