Abstract: A catalyst carrier is a piece carrier, and a plurality of waveform groove sections is formed on the piece carrier. In the piece carrier, the groove sections includes a plurality of upward grooves and a plurality of downward grooves. The upward grooves and downward grooves are arranged alternatively with a part of an opening of each upward groove being overlapped with a part of an opening of a respective downward grooves, so as to form a plurality of outward flowing channels and a plurality of inward flowing channels which are communicated with outer environment. Catalyst is coated upon the surfaces of the upward grooves and downward grooves. Thereby, the total area for coating catalyst is increased and the air is turbulent as flowing through the piece carrier.

Abstract: A ratchet wrench comprises a main body provided with a disposing portion and a receiving cell. A wrenching member is provided with a first toothed portion and is pivoted in the disposing portion of the main body. An arresting member is provided with a second toothed portion and is disposed in the receiving cell such that the second toothed portion is engageable with the first toothed portion. The arresting member and the wrenching member are urged by a first resilient member which serves to provide the arresting member with a spring force enabling the wrenching member to be turned unidirectionally. The arresting member and the wrenching member are further urged by a second resilient member which serves to provide the arresting member with a spring force enabling a greater area of the second toothed portion of the arresting member to be meshed with the first toothed portion of the wrenching member.

Abstract: A device for unsealing a plastic fruit bag comprises a conveyor device, a heating device, and a blower. A fruit contained in a sealed plastic bag is conveyed by the conveyor device to the heating device which melts a portion the plastic bag and thus opens the plastic bag. The opened plastic bags are sucked by the blower to a place for collection, and the fruits are collected in another place.

Abstract: A hand tool comprises at least one handle, at least one connection member, and at least one blade. The handle is provided with a pivoting portion having a receiving slot and a pivoting hole in which the connection member is located. The connection member is formed of a pin, a spring, a collar and a ring. The pin has a head, a cylindrical portion, a tangential plane, and a tail end. The head presses against the receiving slot. The cylindrical portion and the tangential plane are put through the pivoting hole and fitted into the spring and the collar. The blade has a working portion and a fastening portion which is provided with an open slot and a locating hole and is fastened with the connection member such that the cylindrical portion of the pin of the connection member is releasably located in the locating hole of the fastening portion of the blade, thereby enabling the fastening portion of the blade to disengage the pivoting portion of the handle by pressing the tail end of the pin of the connection member.

Abstract: An adjustable wrench has a handle and a jaw head extending from one end of the handle. The jaw head is formed of a fixed jaw and a movable jaw. The fixed jaw is composed of a first clamping side, a second clamping side, a third clamping side, and a fourth clamping side. A receiving hole is formed by these four clamping sides and provided with an opening. The movable jaw is axially and linearly displaceable in the receiving hole of the fixed jaw such that the movable jaw is capable of an axial and linear displacement. The movable jaw has a first clamping side and a second clamping. The fixed jaw and the movable jaw form together a jaw mouth having at least three clamping sides to hold securely a hexagonal nut or a bolt having a hexagonal head.

Abstract: An adjustable wrench is composed of a handle and a clamping member fastened pivotally with the handle and provided with two clamping surfaces forming therebetween an angle of 120 degrees. The clamping member is capable of turning on a pivoting point which is located at the center of the pivoting position of a clamped portion of the handle. The pivoting position has a horizontal width which is 3-3.5 times a distance between a longitudinal line of the pivoting point and a longitudinal line passing the curvature center of an arcuate lower clamping surface of the clamped portion of the handle. The arcuate lower clamping surface has a curvature radius which is 2.5-3.5 times a distance between the two longitudinal lines. The arcuate lower clamping surface has an arc line length corresponding in location to a circle center angle ranging between 70 and 90 degrees.

Abstract: A pliers is composed of a first long member and a second long member having a middle neck portion which is provided with a long slot. Pivoted to the first long member is a stopping member, which is located in the long slot and provided with a serrated portion engageable with teeth of the long slot. A first spring is fitted over a second support arm which forms an angle with a first support arm. A second spring is fastened at one end thereof with a grip end of the first long member, and at another end thereof with a grip end of the second long member. The first and the second long members are forced by the springs to open up completely in the absence of an external force exerting on the pliers.

Abstract: The present invention is related to a rehabilitation apparatus to alleviate the stiffness for patients suffering from lower limb paralysis caused by acute cerebral vascular impairment or vertebra impairment. The essential mechanisms of the rehabilitation apparatus include a transversely movable slider mechanism which makes use of a transverse slider capable of moving in a predetermined direction and for a predetermined distance to provide the thigh with reciprocal motion of inward retraction and outward expansion by means of a spherical joint which drives the rotation of a longitudinal slide rail, the outward expansion or inward retraction having an angular range between 0.degree.-35.degree.

Abstract: An improved denture fixative composition comprising an adhesion promoter and a highly cross-linked copolymer of a lower alkyl vinyl ether and maleic anhydride or acid is disclosed wherein at least 65.0% of the total number of initial carboxyl groups in the copolymer are reacted. The cross-linking agent employed in this invention is calcium cation and optionally up to about 30.0% of the calcium function can be replaced with other inorganic cross-linking agents or polyhydroxy compounds either singly or in combination. The adhesion promoters are chelating agents such as polycarboxylic acids, hydroxycarboxylic acids, aminocarboxylic acids, polyphosphoric acids and their alkali salts.

Abstract: A denture adhesive with significantly improved hold performance is comprised of the mixed partial salts of polymethyl vinyl ether maleic acid. At least one of said salts comprises zirconium while a second salt is selected from the group consisting of calcium, zinc, magnesium, iron, strontium and mixtures thereof. Optionally, a tripartite salt formulation may be prepared utilizing sodium, lithium or potassium. The adhesives are formulated in a standard pharmaceutically acceptable vehicle comprised of waxes, oils, colorants, viscosity modifiers and the like as is known in the art. The denture adhesive may be formulated as a paste, powder or liquid which has rapid absorption characteristics for faster swelling softening and superior coalescence.

Abstract: An improved denture adhesive composition is comprised of a highly cross-linked lower alkyl ether/maleic acid or maleic anhydride copolymer in which up to about 85% of the initial free carboxyl groups are reacted with one or more cross-linking agents. The cross-linking agents are mixtures of inorganic divalent cations such as calcium, magnesium and zinc together with organic bifunctional compounds comprised of polyhydroxyl compounds such as propylene glycol, glycerin and the like. The copolymer has a specific viscosity of no less than 1.5. A hydrophilic polymer such as sodium alginate or carboxymethyl cellulose may also be added to the lower alkyl vinyl ether/maleic acid or maleic anhydride copolymer which is then formulated with other excipients in a paste, powder, liquid, gel or cream composition.

Abstract: An electrical connector which has improved durability is provided. The housing of the connector has a first surface mounted on a mother board and a second surface on which a daughter board is mounted and which is disposed opposed to the first surface. On both ends of the first surface mounting legs are provided for receiving an edge of the mother board. On both ends of the second surface latch members for holding the daughter board and stoppers slightly spaced from the latch members are provided. When the daughter board is mounted on the connector, the latch members are prevented from being flexed excessively due to the contact of the latch members with the stop members. The daughter board and the connector are arranged in series and connected to each other such that the height of the assembly of the daughter board and the connector is lowered.

Abstract: A connector device comprising: a housing made of an insulating material, which has a groove including connection terminals for coming into electrical contact with a row array of connection terminals of a first circuit board inserted therein and with a second circuit board, the first circuit board being partially housed in the groove; latching means having a pair of metal strips mutually oppositely provided one at each end of the housing at an interval corresponding to a length of the first circuit board in a direction in which the connection terminals are arranged as the row array; the pair of metal strips elastically holding the partially inserted first circuit board therebetween under an elastic force acting in a direction perpendicular to that in which the connection terminals of the first circuit board are arranged as the row array; holding means for holding the latching means relative to the housing; and fixing means for positionally fixing the first circuit board, which is held by the latching means, re

Abstract: A surface erodible controlled releasing, free standing cleaning block for domestic water closets comprises controlled releasing agent, erosion rate modifier, processing aid, acidic chelating agent, color indicator, density modifier and internal lubricant.

Abstract: This invention relates to a mild oral hygiene composition such as a toothpaste, dental gel, mouthrinse or tooth powder containing a mild surfactant, protein fatty acid condensate or acid hydrolyzed, hydrolyzed animal protein or the mixtures thereof, and in combination therewith, mild high foaming surfactant, e.g., disodium cocoamido MIPA sulfosuccinate or disodium oleamido PEG-2 sulfosuccinate or disodium lauryl sulfosuccinate or the mixtures thereof; or a natural emulsifier, e.g., lecithin, or both a mild surfactant and a nautral emulsifier.

Abstract: Method of obtaining N-terminal methionine-free proteins are described. The methods employ a novel enzyme, E. coli methionine aminopeptidase either in vitro or in vivo. For in vivo application, plasmid-borne DNA encoding the peptidase is transformed into a bacterial host which produces the desired protein.

Abstract: The invention discloses modified signal peptides derived from wild-type signal peptides of the type that are capable of forming membrane-bound lipoproteins and methods for making such modified signal peptides and DNA sequences encoding them. Modified signal peptides of the invention and DNA sequences encoding them are useful for increasing the secretion of heterologous gene products produced by transformed host organisms. The invention further discloses a method for producing recombinant DNA sequences in vivo.

Abstract: A nonshrinkable, thermoplastic and injectable endodontic filling composition. The composition is a mixture of transpolyisoprene, either naturally produced as balata or gutta percha, or synthesized from isoprene, and a liquid castor ester platicizer. Alternatively, the mixture comprises transpolyisoprene, a liquid castor ester plasticizer and a liquid castor oil or dimethyl silcon fluid lubricant. The mixture is preferably a combination of the transpolyisoprene, the liquid castor ester plasticizer and the liquid castor oil or liquid dimethyl silicon fluid lubricant or both. The composition is compounded to form a highly thermoplastic material which is injectable at a clinically acceptable temperature with a manually operated injection system without shrinkage of the composition after placement in a dental root canal.

Abstract: A method and a cloning vector are described for the controlled accumulation of cloned heterologous gene products in Bacillus subtilis. The cloning vector is capable of being replicated in B. subtilis and includes the heterologous gene located and oriented such as to be under the control of an operator, promoter, and ribosome binding site sequence. The gene codes for a protein which is under the control of a transport mechanism by which the protein is secreted by the B. subtilis. The gene product is recovered from the growth medium for the B. subtilis. The cloning vector is also capable of similar use in other bacteria such as E. coli.

Abstract: A nonshrinkable, thermoplastic and injectable endodontic filling composition. The composition is a mixture of transpolyisoprene, either naturally produced as balata or gutta percha, or synthesized from isoprene, and a liquid castor ester platicizer. Alternatively, the mixture comprises transpolyisoprene, a liquid castor ester platicizer and castor oil or dimethyl silicon fluid lubricant. The mixture is preferably a combination of the transpolyisoprene, the liquid castor ester plasticizer and the liquid castor oil or dimethyl silicon fluid lubricant or both. The composition is compounded to form a highly thermoplastic material which is injectable at a clinically acceptable temperature with a manually operated injection system without shrinkage of the composition after placement in a dental root canal.