Abstract: A stop-leak composition for an internal combustion cooling system, hot water heating systems and the like consisting essentially of ginger rhizome flour, ground nut shells, boric acid, sodium lignin sulfonate and magnesium stearate.

Abstract: A vaginal suction apparatus for use particularly during menstrual flow. The device is in the form of a hollow elongated member, having a rounded end portion, defining an inner collection chamber provided proximate the rounded end portion with a screened aperture positionable in the vagina for engagement with the cervix of the uterus. The chamber is closed at its rear end by a wall having a passageway placing the chamber in communication with a suction source, such that by application of suction to the chamber and to the vaginal canal the contents of the uterus are suctioned through the screened aperture into the chamber. Preferably, the rear end wall is removable for emptying the contents of the chamber and for cleaning the chamber.By use of the device of the invention a method is provided for regulating and shortening menstrual flow.

Abstract: A method for precoating a plug adapted to close off core openings in an internal combustion engine with a plastic which forms a fluid tight seal between the peripheral surface of the plug and the core opening upon insertion of the plug therein. The plug is preferably coated with a solution of vinylidene chloride-vinyl chloride copolymer in cyclohexanone which is cured by heating for twenty minutes at 160.degree. F (71.degree. C). The thickness of the plastic coating may be doubled by heating the coated plug for ten minutes at 250.degree. F (121.degree. C).