A pressure vessel has a cylindrical side wall and a closed end joined to the side wall at a knuckle. The fatigue resistance of the pressure vessel is improved by autofrettage which moves a region of peak stress from the internal surface of the vessel to a region within the knuckle. Preferred are pressurized gas vessels of 6000 or 7000 series aluminum alloys.

The present invention provides implantable devices and associated methods forinterconnecting human vessels in a side-to-side or an end-to-side arrangement rapidly, safely and in a minimally invasive manner. The devices comprises at least a first segment, a second component, and a flow opening between the at least one segment and the second component when operatively used. The first segment is flexible and has physical and mechanical properties which allow it to be easily inserted into a vessel, ...

A manway assembly (10) designed for mounting within an opening (19) in a vessel wall (20) is provided which includes a manway ring (12) having a passageway (24) therethrough, with an inner cover (14) and a cover lock (18). The cover (14) is supported by a swing mount (16) including a tubular member (42), an arm (44) telescopically received within member (42), and a suspension connector (48). The lock (18) is made up of studs (38) secured to cover (14) and extending through passageway (22), with ...

To effectively cool a water muffler. Exhaust gas from an engine is discharged through an exhaust pipe having a water jacket into a water muffler together with water passed through the water jacket. A water outlet port of the exhaust pipe is directed toward an upper portion of the inner wall surface of the water muffler on which exhaust gas discharged from the exhaust pipe. An exhaust exit is directly directed toward the inner surface of the case of the water muffler and the water outlet port is ...

An impeller drive shaft in a vessel is supported on a vessel body at a midsection thereof by a bearing member. A driven side coupler to be coupled with a drive side coupler on the side of an engine output shaft is mounted on a front end of the impeller driving shaft, a collar having a diameter larger than the maximum diameter D of the shaft is detachably mounted on the rear of the mounting portion for the driven side coupler on the impeller driving shaft, and the driven side coupler is fixed wit...

There is disclosed a foil system for hydrofoil vessels, where the foil system lifts and carries the total weight of the craft at speed, and comprising a number of adjustable control fins/-surfaces (3-5), supporting legs (7-9) between the foil system and the hull of the vessel, and means to adjust the control fins/-surfaces. The foil system is characterized in that it is formed by one single approximately horizontal foil body comprising two generally mirror symmetric foil arms (1, 2) which extend...

A rack is provided for holding at least one vessel so that the vessel can be agitated by a drive means. The rack comprises means for resiliently clamping the vessel, the clamping means permitting the vessel to move with the clamping means defining the null point of the movement. Preferably, the clamping means is for resiliently clamping the vessel at a position remote from the bottom thereof and the rack further comprises laterally movable agitating means for engaging the vessel near the bottom ...

A vessel occluder for providing permanent occlusion of a vessel in a person utilizes a flexible closure member attached to at least one metallic radially expandable, generally tubular shaped stent, the flexible closure member having a generally tubular shaped cross-sectional configuration.

A device for microanastomosis of blood vessels has a housing (1) provided with a gripper (3) for grasping and crimping staples (4, 5), housing (1) enclosing a mechanism for crimping staples (4, 5) by actuating the gripper (3). This mechanism has a control member (16) which is accessible from outside the housing (1), a staple magazine (33) and a mechanism for transferring a staple (4, 5) from the magazine to a position between the jaws of the gripper (3) which is likewise controlled by a member (...

Disclosed are methods useful for treating vascular lesions wherein a non-particulate agent such as a metal coil is introduced into a vascular site (e.g., an aneurysm cavity) in conjunction with an embolizing composition comprising a biocompatible polymer and a biocompatible solvent. The biocompatible solvent is miscible or soluble in blood and also solubilizes the polymer during delivery. The biocompatible polymer is selected to be soluble in the biocompatible solvent but insoluble in blood. Upo...