A hand operated, fluid dispensing pump includes a body that slidably interacts with a handle. The body includes a valve housing fluid coupled with an inlet passageway, an outlet passageway, and a dispensing barrel. A finger rest rigidly projects from the dispensing barrel. A loading chamber is recessed...http://www.google.de/patents/US5951517?utm_source=gb-gplus-sharePatent US5951517 - One-hand pulse pump