Abstract: A method and apparatus for adsorption and detection of adsorbents or analytes. The method and apparatus can be employed in the field for rapid adsorption of analytes and is particularly useful for detection of mycotoxins. A sample to be analyzed is prepared in solution and placed in a test tube. A tube-like adsorption column having a seal and a valve member is forcefully fed into the test tube to force solutions through the valve member into the columun and through a filter and adsorbent to trap interferences. The semi-purified solution may then be analyzed for the presence of analytes. The column with the purified solution may be further employed with a second smaller adsorption column similarly equipped with a seal and valve member fitting within the first column. In similar fashion the second column may be forced into the first column to expel the solution therein into the second column and through one or more selective adsorbents for different analytes such as one or more mycotoxins.

Abstract: A tubular membrane-tight flow valve features a waisted support body for the membrane which seals against an annular sealing surface at the waist of the support body. This special shape of the support body is effective in avoiding closing hammer. In the preferred embodiment the membrane is made fractionally longer than the waisted support body and this results in extremely quiet operation of the valve.

Abstract: A method and apparatus for adsorption and detection of adsorbents or analytes. The method and apparatus can be employed in the field for rapid adsorption of analytes and is particularly useful for detection of mycotoxins. A sample to be analyzed is prepared in solution and placed in a test tube. A tube-like adsorption column having a seal and a valve member is forcefully fed into the test tube to force solutions through the valve member into the column and through a filter and adsorbent to trap interference. The semi-purified solution may then be analyzed for the presence of analytes. The column with the purified solution may be further employed with a second smaller adsorption column similarly equipped with a seal and valve member fitting within the first column. In similar fashion the second column may be forced into the first column to expel the solution therein into the second column and through one or more selective adsorbents for different analytes such as one or more mycotixins.

Abstract: A helmet for protecting a head according to this invention has a hard shell generally symmetrical to a longitudinal plane and having a rear edge normally juxtaposed with the nape of the neck of the wearer and a pair of front temple regions flanking the plane and normally juxtaposed with the temples of the wearer, a rear center strap having two ends and lying generally on the plane and a pair of similar side straps generally symmetrically flanking the plane and each having a rear end fixed to the other end of the center strap and a front end secured to the helmet at the respective temple region. The one end of the center strap is adjustably secured to the shell at the rear edge therefor generally on the plane. Respective fittings are slidable on the side straps between the ends thereof and a chin strap extends between the fittings and normally passes under the chin of the wearer.

Abstract: A child's seat for a motor vehicle comprises a back portion and a harness including two shoulder straps each of which projects through a respective opening in the back portion. Each opening is formed by the interaction of an elongate slot formed in the back portion and extending over the range of desired positions for the opening, with a horizontal slot in a carriage mounted on the rear side of the back portion for vertical sliding movement relative thereto. Manually operable control means is arranged to vary the position of the carriage relative to the back portion.

Abstract: A toddler seat has a base adapted to sit on the seat part in rearward engagement with the back part, having an upwardly directed seat surface on which a toddler can sit, and provided below the surface with a pair of opposite sides laterally flanking the surface and extending vertically and in the travel direction. Respective guides on the sides extend obliquely upward and forward thereon. Respective arms have lower ends at the guides upper ends above and flanking the seat surface, the belt normally passing around the upper ends of the arms. Respective complementary and interengaging formations at the lower ends and guides allow the arms to slide along the guides without pivoting so that the relative angular positions of the upper and lower arm ends do not change as the arms slide along the guides.

Abstract: Apparatus and method for obtaining a uniform ground sample of grain, seeds and other foodstuff of a lot to be tested for make-up composition including presence of mycotoxins. A planetary grinder is employed having for example three peripheral discharge outlets, two of which are of uniform size and the third of which has a restricted outlet to discharge a test sample, such as 6% of the entire lot being ground. The test sample has been found to have a closely similar composition to the entire lot and can be subjected to analysis of one type or another with confidence of its representative composition.

Abstract: The child-passenger safety restraint for a seat of a vehicle comprises a safety seat positioned on the vehicle seat and a restraining body securable by a safety belt of the vehicle seat, the restraining body being held on the safety seat with its relative height and horizontal position adjustable according to the size of the child seated. The restraining body and the safety seat are attached to each other by a coupling mechanism that includes at least one member adjustable in itself and/or relative to the safety seat and/or relative to the restraining body and securable in a particular position, with whose help the optimum position of the restraining body for safe restraint is adjustable and securable relative to the safety seat and the child.

Abstract: A protective helmet, e.g. a motorcycle helmet has a chinpiece below its visor which defines an air passage with a member behind this chinpiece, permitting air to flow from an opening in this chinpiece uniformly over the interior of a visor to prevent fogging thereof by moisture.

Abstract: Safety apparatus for restraining a seated occupant in a vehicle may comprise a tunnel-shaped body to restrain the lower torso of a large child or an adult, the body providing a base on which a movable chest-restraining panel is pivotally mounted. In the case of a small child, the lower torso restraining means includes an additional seat providing a base, for example, with a separate fixed panel and/or side portions, on which the chest restraining panel is pivotally mounted. The straps at each side of the occupant's body anchor the lower torso restraining means to the vehicle while enabling limited inertial movement relative to the vehicle seat. If the vehicle decelerates suddenly, the occupant's inertia moves the lower torso restraining means away from the seat until the straps are tensioned and act on lever means to pivot the chest restraining panel into its operative position. Either the lever means, or other locking means, may act as a stop to prevent return movement of the chest restraining panel.

Abstract: A safety harness to restrain the operator of an earthmoving vehicle. The harness includes a pelvis belt connected to respective shoulder belts, each end of the pelvis belt and the shoulder belts are connected to belt retractors lockable by means responsive to both belt speed and the inclination of a vehicle. The vehicle inclination response of each retractor is similar, so that they act simultaneously, and a device is provided for adjusting the vehicle inclination response independently of the belt speed response to give the operator freedom of movement with safety restraint. The device may be coupled by cables to respective levers for locking the retractors, disabling the vehicle inclination response or for making the vehicle inclination response effective or by a double-acting solenoid having an armature for achieving the same effect.