Abstract: A beverage can opener having a body that includes a tab engaging pawl, and an opposing punch opening assist pawl that is offset from the tab engaging pawl. The tab engaging pawl is inserted into the beverage can opening tab from the drinking hole side of the can, and functions to increase the leverage and thereby the opening action of the can opening tab.

Abstract: A ring pull can opener utilizes two different coefficients of friction separated by a transition point on the can engaging surface of the can opener to provide increased leverage and assist in the opening action of the can. An ergonomic bulbous handle not only makes it easier to hold the opener, but also provides a greater freedom of motion of the user's wrist, thereby enabling greater leverage to be applied to the ring pull top during the opening actions.

Abstract: A package opener having a rotating cutting wheel and adapted to cut and open packages having dye cut edges/flanges, or more specifically clamshell packages. An opposing groove is positioned to receive the blade of the cutting wheel. The package opener includes an edge receiving portion that is configured to receive the flange of the package and allow the opener to be moved along the same. The moving action results in an engagement of the package between the cutting wheel and the opposing groove, and the cutting of the same without any exertion or discomfort to the user.

Abstract: A non-contact wiper and washer assembly for surveillance camera domes having a semicircular perforated tube in close proximity to the dome surface. The tube is pivotable by a motorized mechanism so that either washer solution or compressed air may be dispensed over the entire surface of the dome thereby washing it and cleaning it from any water droplets.

Abstract: An air supported enclosure for the protection of a vehicle from the harmful effects of the outdoor environment comprising a flexible sheeting totally surrounding but not touching the vehicle. Access into the enclosure is gained by a slide fastener which extends around three sides of the enclosure. The enclosure is ventilated to minimize temperature differentials between its interior and its exterior therefore also minimizing the formation of condensation in its interior.

Abstract: An attenuation spot filter adapted to extend the light intensity range of usefulness of cameras, particularly television cameras, by attenuating the input light intensity in accordance with reduced iris aperture, comprising an optical element having at its center a thin film coating the density of which decreases in a radially outward direction whereby light attenuation is a minimum at maximum iris aperture and is maximum at minimum iris aperture.The attenuation spot filter is manufactured by a thin film carbon deposit of controlled thickness and diameter onto an optical flat which is, after deposition, coated. The flat is held horizontally for vertical axial rotation about a controlled flame, with the distance between the flame and the flat being cam-controlled and with the flame jet being secured for vertical axial movement with a cam follower. The coating is float-applied for uniformity and the coating material is an alkyd resin and lacquer thinner mixture.

Abstract: An attenuation spot filter adapted to extend the light intensity range of usefulness of cameras, particularly television cameras, by attenuating the input light intensity in accordance with reduced iris aperture, comprising an optical element having at its center a thin film coating the density of which decreases in a radially outward direction whereby light attenuation is a minimum at maximum iris aperture and is maximum at minimum iris aperture.The attenuation spot filter is manufactured by a thin film carbon deposit of controlled thickness and diameter onto an optical flat which is, after deposition, coated. The flat is held horizontally for vertical axial rotation about a controlled flame, with the distance between the flame and the flat being cam-controlled and with the flame jet being secured for vertical axial movement with a cam follower. The coating is float-applied for uniformity and the coating material is an alkyd resin and lacquer thinner mixture.