A pressure relief device is provided. The pressure relief device includes a sealing member and a low-pressure support member that is adapted to provide support to the sealing member when the sealing member is subject to a certain pressure differential. The low pressure support member includes an annular flange and at least one supporting projection. A cutting element is adapted to puncture the sealing member when the sealing member is subject to a predetermined pressure differential. The pressur...

Apparatus and methods for fitting mechanical parts to minimize prevent free play are described. An apparatus having a piston is designed so as to restrain the piston before actuation, and so as to allow the piston to gain momentum before striking an object. The described apparatus are applicable to devices involving shearable elements. An embodiment of the invention relates to a pyrotechnically activated valve incorporating such features to minimize free play in conjunction with such features so...

A toothbrush distal end for attachment to a handle of a mechanical toothbrush; the distal end comprising: a head; a neck having a proximal end and a distal end; a drive shaft having a driving bevelled gear fixed to distal end thereof; a brush consisting of a bristle array on a brush back plate, and a movement; the head being fixedly attached to the distal end of the neck; the neck being fixedly couplable to the handle and the drive shaft being couplable to a driving means; the neck being hollow ...

A retortable container and an easy-opening closure for hermetic sealing of an open end thereof. The closure includes a metal end ring adapted to be double seamed to an open end of the retortable container, an intermediate area extending radially inward and defining an opening to an interior of the container, and a folded area folded into the interior of the container. The folded area extends radially outward from the opening and substantially parallel to at least an adjacent portion of the inter...

A burst disk assembly is configured for use in a pressurized gas system for venting pressurized gas from the system in the event that the gas exceeds a predetermined pressure. A plug has a tapered cylindrical shape with a minimum cross-section that is less than a body plug region open cross-section of the assembly, and a maximum cross-section that is greater than the body plug region open cross-section. The plug defines, at an end adjacent the minimum cross-section, a disk face. A frangible disk...

A convertible furniture assembly having a bed frame pivotally coupled to a frame assembly. The bed frame is pivotally moveable between an upright position and a lowered position. A counterbalance member is coupled to the bed frame and adapted for counterbalancing the bed frame during movement, thereby minimizing the size of a corresponding torsion system. The present invention further includes a hinge assembly capable of providing a spacing distance between the bed frame and a lower platform.

The invention relates to a fluid conduit piece (8) for passing therethrough a spontaneously exothermic working fluid such as a synthetic polymer, a cellulose derivative and a solution on the basis of cellulose, water and amino oxide, said fluid conduit piece comprising a working fluid zone (9) through which said working fluid flows. The aim of the invention is to prevent the fluid conduit piece and other fluidic devices from being damaged in the event of a spontaneous exothermic reaction in the ...

Raw data relating to a variety of parameters is analyzed to determine whether or not the current value or condition of the parameter is significant according to schedules of criteria which are subject to change. Criteria selection is adaptive, being dependent upon modes or conditions indicated by the parameter values being handled by the apparatus. Additionally, certain criteria may have floating limits, so that the base from which deviation is measured for the purpose of determining significanc...

A digital data storage system for an in-situ measuring device having a siified logic to perform all of the functions required to record fourteen bit data words on six tape channels, with parallel-in and parallel-out processing between the measuring device sensors and the tape recorder. The storage system accepts and records sampled data and event data from the measuring device and records the time of occurrence of this data. An internal clock and associated logic determine the initiation and ter...

A current-switching-type flip-flop circuit device including first and second sections each comprising a first current-switching-type logic circuit comprising a first transistor forming an AND input gate and a second transistor carrying out a current switching operation jointly therewith, a second current-switching-type logic circuit provided with a third transistor forming an OR input gate to perform a flip-flop action, and a means for jointly connecting the collectors of the aforementioned seco...