Abstract: An insect screen comprising fibers in a warp and fill construction defining openings having a warp dimension and a fill dimension, at least one of the warp and fill dimensions being less than about 0.05 inches and the other of the warp and fill dimensions being larger than about 0.03 inches, the fibers having a diameter of equal to or less than about 0.007 inches. The present invention is an improved insect screen designed to serve the primary purpose of keeping out insects and pests while maximizing visual clarity, light transmission, and airflow.

Abstract: The invention comprises a filter cartridge including a cylindrical filter medium potted into a top cap, and having an internally potted bottom closure molded in place inside the filter medium.

Abstract: A pleated filter cartridge for removing particles or dust from a gas stream is described. The cartridge is made of a perforated support tube, a pleated filter medium around said tube, and end caps into which the ends of the filter medium, and the tube are sealed, wherein the pleated filter medium has less than seven pleats per inch.

Abstract: A vehicle passenger safety device, a laminate for the air bag portion of the device which filters out combustion product particles such as sodium azide, sodium oxide, and sodium hydroxide from the inflating gas escaping into the vehicle, and a process for making the laminate.