r other crawling pests from entering the food area of an animal feeding bowlUS5097641 *Nov 14, 1989Mar 24, 1992Hand Herbert HMethod and apparatus for preventing termites, crawling insects or other crawling pests from entering residential structures, commercial structures and industrial structuresUS5272623 *Nov 7, 1990Dec 21, 1993The United States Of America As Represented By The Secretary Of The N