Abstract: A device for the catalytic purification of automotive exhaust gas includes at least one inner casing housing an assembly of corrugated, or corrugated and flat, thin metal sheets carrying a catalyst thereon, and disposed between a gas inlet and a gas outlet which are adapted for connection to an exhaust pipe extending from an engine. An outer casing surrounds the inner casing in a speced apart relation therefrom, and is joined to it in a gastight way. The inner and outer casings define therebetween a closed space filled with a heat storing material which can collect and store the heat of exhaust gas.

Abstract: A connector for connecting a pipe of small diameter in which chamber in communication with a flow bore of a cylindrical connection is are perforated axially on the side of the top end of a connector main body recessed windows are disposed to the circumferential wall of the chamber and the circumferential wall at the rear end thereof is formed as an engaging wall, the rear end of the chamber is engaged by the engaging wall and a separate receptacle member having a pair of finger walls protruded being opposed to each other in the inserting direction thereof, in which connection is made by engaging the finger wall to an annular bulged wall disposed near the connection end of a pipe incorporated to the inside of the connector main body in a state of connecting the pipe, wherein the receptacle main body 8 comprises an annular circumferential wall 7 to be attached on the outer circumferential surface at the rear part of the connector main body 1 and a pair of finger walls 5 each of a square block form being dispose

Abstract: Herein disclosed is a connector for connecting a slender pipe engageably, which connector comprises: a generally cylindrical connector body having a communication hole, a radially reduced chamber leading to the communication hole, a radially enlarged chamber stepped from and leading to the reduced chamber, a notched aperture formed in the circumferential wall of the enlarged chamber, and a retaining wall formed at the rear end of the body; a seal ring member fitted in the reduced chamber; and a retainer adapted to engage with the retaining wall and having a pawl wall made engageable with an annular bulging wall, which is formed in the vicinity of the connected end of the pipe when the pipe is inserted for connection into the connector body. The retainer has a block-shaped pawl wall formed with an engagement face at its front and a diverging face in the vicinity of the rear portion of its inner face. At least one of the back face of the pawl wall and the retaining wall has a retaining portion.

Abstract: A twin motor fan unit is provided with two fan members mounted to parallel rotational shafts of a motor. The motor fan unit includes a rectifying plate to partition the fan members. The rectifying plate prevents turbulence at the rear faces of the respective fans that would otherwise be caused by mutual interference of the air stream leaving the fan. As a result, the motor fan unit enables an increased quantity of air to flow through the motor fan unit and also achieves a reduction in operating noise.

Abstract: The piping connector according to the present invention is comprised of a conducting pipe having an annular expanded wall in the proximity of an end part of the pipe, a main body of a joint provided with a structure formed at one end thereof for accepting the conducting pipe thereinto and provided with a circulating hole formed in the axial direction on the other end part thereof in communication with the conducting pipe mentioned above, a sealing means to be fit into the inside area of the main body of the joint, and a retaining means installed inside the main body of the joint, wherein the retaining means mentioned above is comprised of an arm part formed of an elastic body in a shape resembling that of the letter C, and a socket unit comprised of a plurality of suspending parts projecting from the arm part in the direction of the inside diameter and inserted into notched windows formed in the main body of the joint and disposed so as to be put into their direct contact with the annular expanded wall of the

Abstract: Herein disclosed is a piping/wiring clamping device which has a simple structure but can fix a piping/wiring element stably while allowing a tentative fixing. The clamping device comprises: a clamping wall formed by curing a band generally at its center for clamping at least one piping/wiring element fixedly; a pair of mounting walls which are formed to extend continuously from the two ends of the clamping wall and at least one of which is arcuated; engaging means formed at the extending end portions of the mounting walls for engaging with each other at their ends when the two extending end portions are pressed toward each other; and mounting holes individually formed in the mounting walls and adapted to overlap each other when the mounting walls are held in contact with each other.

Abstract: A joint for coupling small-diameter pipes, comprises a body including a cylindrical joint wall having a bore, and a cylindrical wall defining a stepped enlarged chamber in communication with the bore and receiving seals and a bushing behind the seals, the cylindrical wall having a rear end extending outwardly to provide a flange, and the bushing having an open end, a collar having a rear end extending inwardly to provide a locking wall and a front end extending inwardly to provide a engagement wall engaged with the flange, and a plurality of resilient retainer each having one end engaged with the open end of the bushing and the other end bent to a V-shape to provide a pawl. When coupling is effected, a bent portion of the retainer is brought into engagement with the locking wall, and the pawl is brought into engagement with an annular projection wall formed on one end of a pipe inserted into the enlarged chamber.

Abstract: A connector device for connecting a small diameter pipe is disclosed. The device has a joint body internally formed with a communication bore, first and second pipes intruded into end parts of the joint body, a socket member having elastic pawl walls each impinging on an annular swelling, and sealing members internally provided. The second pipe is movable a given distance in the axial core direction.

Abstract: Herein disclosed is a connector for connecting slender piping members. The connector comprises a connector body and a separate socket body. The connector body is formed axially therethrough with a smaller-diameter chamber leading to a communication hole in a connecting cylindrical wall at the leading end and a stepped larger-diameter chamber at the back of the smaller-diameter chamber. The larger-diameter chamber has its cylindrical rear circumference formed into an inwardly inclined retaining wall. The connector body has seal ring members fitted in the smaller-diameter chamber and a bushing member fitted at the back of the seal ring members. The socket body has generally L-shaped elastic pawl walls projecting integrally from the retaining wall in the larger-diameter chamber and opposed in the inserting direction to an annular wall at the rear end. The socket body has its slope retained in the vicinity of the root of the L-shaped bent portion.

Abstract: Herein disclosed is a connector for connecting slender piping members. The connector comprises: a connector body and a separate socket body. The connector body is formed axially therethrough with a stepped smaller-diameter chamber, which is expanded to lead to a communication hole formed in a connecting cylindrical wall at the leading end, and a stepped larger-diameter chamber which is positioned at the back of the smaller-diameter chamber. The connector body is further formed with a pair of engagement holes or slots opposed to the circumferential wall of the larger-diameter chamber to form a retaining wall at the circumference of the rear end. The connector body has seal ring members at the side of the smaller-diameter chamber and a bushing member at the back of the seal ring members.

Abstract: There is disclosed a compact connector for stably connecting a metallic or resinous pipe or tube having a relatively small diameter less than about 20 mm, the pipe having an outwardly swelling annular wall. The connector comprises a connector body, seal members, a bush member, and a socket body fabricated independent of the connector body. The connector body has a small chamber in which the seal members and the bush member are inserted. The socket body has an annular cylindrical wall, arms extending circumferentially, and a pair of rectangular claw walls. The claw walls have tapering surfaces provided with openings at their rear ends. When the socket body is inserted in the connector body, the front surfaces of the claw walls are brought into resilient contact with the swelling annular wall of the pipe. The rear surfaces of the claw walls engage the rear end surface of the connector body.

Abstract: There is disclosed a compact connector for stably connecting a metallic or resinous pipe or tube having a relatively small diameter of about less than 20 mm, the pipe having an outwardly swelling annular wall. The connector comprises a connector body, seal members, and a socket body fabricated independent of the connector body. The connector body has a small chamber in which the seal members are fitted. The socket body has a pair of protruding resilient claw walls, an annular wall pushing the seal members, and arms extending radially outwardly and rearwardly. When the pipe is connected, the front surfaces of claw walls are brought into resilient contact with the swelling annular wall of the pipe. The rear surfaces of the claw walls engage the rear end surface of the connector body.

Abstract: A connector for slender piping members is disclosed. A spacer, seal rings and a bushing are inserted into the end of one piping member to be connected. The leading end portion of the one piping member is fitted in the outer circumference of the bushing. The end portion of the other piping member to be connected is pushed into the axial core of the bushing. An annular flange portion formed on the outer circumference of the other piping member is held in abutting engagement with an annular wall of a socket body, which in turn is abutted against the front face of the bushing. The circumferential wall portion of the one piping member is clamped by stepped oblique walls inside the connector body. The socket body has a plurality of elastic pawl walls projecting obliquely in the connecting direction. An annular wall formed integrally with the pawl walls is engaged by a retaining wall of the connector body.

Abstract: A joint comprises a body including a cylindrical front wall having an inner bore, a small diameter chamber extending from the bore and having a diameter larger than that of the cylindrical wall, a large diameter chamber extending rearwardly from the small diameter chamber, and a rear, engagement wall, seal rings disposed in the small diameter chamber through a spacer, and a discrete socket having a rear end engaged with the engagement wall of the body and a front end projecting to provide a plurality of claws. The claws are resiliently engageable with an annular projection of a pipe when the pipe is inserted into the joint. The small diameter chamber has an annular step on its inner periphery. The spacer includes an annular projection for engagement with the step of the small diameter chamber. A bushing is disposed behind the seal rings.

Abstract: A connector used in connecting a resin tube and a metallic pipe of comparatively small diameter comprises a connector body and a socket member. The connector body has a through hole and an accepting chamber axially formed therein. A rear wall portion of the accepting chamber defines a lock wall. The socket member adapted to be seated in the accepting chamber has an axial cutoff formed in a peripheral wall thereof to assume a substantial C-shape in section. The peripheral wall of the socket member, whose one end is adapted to abut on an expanded portion of the pipe, has a pair of pawl portions integral therewith extending obliquely outward on the side of the other end. The distal end of each of the paired pawl portions is adapted to resiliently engage with the lock wall.

Abstract: A small-diameter pipe connector comprises a connector body and a socket body. The connector body has a front cylindrical portion and a rear lock portion and is formed therein with an axial through hole, a small-diameter chamber, and a large-diameter chamber. The socket body has a plurality of resilient pawls. A seal ring is fitted in the small-diameter chamber. A bush is disposed in the rear of the seal ring. A spring is provided such that an expanded portion of a pipe inserted in the small-diameter and large-diameter chambers is pushed against the resilient pawls. Therefore, the pipe connected in the connector does not shift axially and the seal ring wears little even under vibration conditions.

Abstract: A connector used in connecting a resin tube and a metallic pipe of comparatively small diameter comprises a connector body and a plurality of elastic pawl members. The connector body is formed with a large-diameter chamber. The peripheral wall of the chamber has a plurality of lock holes distributed in the circumferential direction thereof. Each elastic pawl member is assembled such that its rear end portion is passed through a corresponding one of the lock holes, bent and secured in place, and its front end portion resiliently retains and secures an expanded portion of the pipe inserted in the chamber.

Abstract: A structure for coupling resin tubes by the use of a bracket, comprises tubes made of resin, a pipe or insert made of metal and inserted into one end of the tubes, and a bracket made of resin and surrounding the insert and the tubes where the insert is inserted upon injection molding of the bracket. The tubes are coupled with a clearance left therebetween. The metal insert extends radially and outwardly to provide annular projections where it is inserted into the one ends of the resin tubes. Also, the metal insert has opposite end extending beyond axial ends of the bracket.

Abstract: There is disclosed a connector for connecting a small diameter pipe. The connector includes: a connector body provided with an enlarge diameter chamber provided with a stepped portion; a pipe having an annular collar wall and engaging with the stepped portion; a sealing member fitted to the annular collar wall; and a sleeve member having a collar wall. An end peripheral portion of a cylindrical wall defining the enlarged diameter chamber into which the pipe connecting end is incorporated is welded to the sleeve member collar wall.There is also disclosed a connecting method comprising the steps of: fitting the sealing and sleeve members to the pipe collar wall; incorporating the connecting end of the pipe fitted with the sealing and sleeve members into the enlarged diameter chamber; and welding the sleeve member collar wall to the cylindrical wall in a state where the pipe collar wall engages with the stepped portion.

Abstract: A securing structure is used in securing a plurality of pipes of comparatively small diameter together. With each pipe having an expanded portion in a straight section thereof, a bracket body is injection-molded from resin such that the expanded portion and its vicinity of each pipe are embedded in the bracket body.