IN IN2759DEL2013A
LEG OPERATED ACTUATION APPARATUS TO PRESSURIZE A BACKPACK TYPE LIQUID SPRAY PUMP The present invention is a specially designed leg operated actuation apparatus to pressurize a backpack type liquid spray pump for agriculture and horticulture use in which the actuation system for creating pressure in the chamber makes use of mechanical advantage of human movement. The invention makes use of a combination of mechanical linkages which amplify the movement of both thighs and legs of the operator, into a linear reciprocating motion used for pumping action but with a minimum stress on the body parts of the operator. The present invention uses the movement of the calf and thy keeping the knee as the fulcrum i.e. pivot point to move the pump through link mechanism and produce the required pressure through the hydraulic pump in the tank. The pressure generated on the liquid is thus dependent only on walking distance of the operator regardless of his weight, and strength.
A document turning up in a search is not the same as a document that anticipates your claims. Our registered Patent Agents read the claims, not just the abstract, and tell you where you still have room.
Protect Your InventionBibliographic data via the European Patent Office's Open Patent Services (DOCDB) . Republished here for research and prior-art review. This page is not legal advice, and its presence in our index says nothing about the validity or enforceability of the document. For the Indian legal position (status, oppositions, renewals), see InPASS.