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:
Mar. 08, 1988
Filed:
Jan. 20, 1987
Richard A Benson, Bedford, MA (US);
Daniel E Smith, Weston, MA (US);
Bellofram Corp., Burlington, MA (US);
Abstract
In a current-to-pressure (I/P) transducer which controls output pressures by rapidly and precisely venting pressures of fluid derived from a supply, the movable valve member employed in the venting comprises a mechanically-balanced low-mass armature suspended for restrained pivotal movements by a taut band and incorporating readily-saturated magnetic material disposed in gap-bridging relation to core elements of a stationary electromagnet; the counterbalancing and taut-band suspension of but a small mass renders the armature highly resistant to adverse effects of vibration, and selectable positioning of the venting-valve seat or port to cooperate with one or the other end of the pivoted armature allows for direct or inverse responses to currents fed to the electromagnet.