Abstract: An apparatus for use in securing a snow chain onto the wheel of a vehicle, including a bar, a pair of cables, each cable having an end secured to one end of the bar opposite another cable having one end secured to an opposite end of said bar, a chain hook attached to a free end of each cable, and a sliding hook slideably positionable on each said cable, an elastic band having one end secured to a location on said bar intermediate between ends of said bar and an anchor hook secured to another end of said elastic band enabling a user to lay said snow chain in front of said wheel, drive said vehicle onto the snow chain, drape said snow chain around and over a top of said wheel, attach each of said chain hooks to an end of a respective one of the side chains of the snow chain, hook each one of the sliding hooks onto the side chain, hook said anchor hook on the elastic band to the opposite end of the snow chain providing that the ends of the snow chain are drawn together and said snow chain is drawn around the whe

Abstract: Methods and devices for determining the breakthrough times and steady state permeation rates of a chemical sample through a material and calibration methods that utilize the principal of relative carbon response factors using flame ionization responses of a reference gas.

Abstract: A support cushion for children's furniture defines a seat cushion area and a back cushion area and has a seating surface that extends over those areas and is contoured to provide positional support and comfort for a child seated on the cushion. The cushion preferably is a one-piece closed cell foam moulding which is flexible to permit variation in the relative angular orientation between the seat cushion and the back cushion area. The seat includes a raised transverse barrier that is spaced forwardly of the rear of the seat for controlling rotation of the pelvis of a child. The cushion further includes a pair of side support pads that extend forwardly from respectively opposite sides of the back to locate against the trunk of a child and cushion against side-to-side movement.

Abstract: A seating system, for example a paediatric seating system for wheelchairs, provides appropriate support for a person using the chair by providing adjustable components to support specific anatomical areas of the back, pelvis and upper leg and, more specifically, three components that stabilize the pelvis of that person. These components comprise an elevation change in the seat, a pad at the back that provides resistance to the posterior superior iliac spine (PSIS) and a pair of anterior pelvic pads that stabilize below the anterior superior iliac spine (ASIS).