The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 1978
Filed:
May. 03, 1976
Charles D Bradley, Jr, Kalamazoo, MI (US);
Pneumo Corporation, Boston, MA (US);
Abstract
A poppet type relief valve includes a poppet and associated seat with the poppet being mounted in an actuator which is connected to the poppet by a lost-motion connection. The poppet is spring loaded with respect to the actuator, and the actuator is also spring loaded toward the seat. When pressure is applied between the poppet and the actuator, the actuator is forced back against its spring until the lost motion is taken up. Further increases in pressure cause the actuator to pull the poppet away from its seat permitting flow through the valve in one direction. Pressure applied on the opposite side of the poppet causes the poppet to move away from the seat without necessarily moving the actuator simply by overcoming the force of the spring between the poppet and the actuator. Thus, pressure on one side of the poppet will cause it to open at a predetermined pressure, and pressure on the opposite side will also cause it to open at another predetermined pressure.