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Fluid pressure manometer

  • US 4,135,509 A
  • Filed: 04/26/1977
  • Issued: 01/23/1979
  • Est. Priority Date: 04/26/1977
  • Status: Expired due to Term
First Claim
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1. A packaged liquid manometer for measuring fluid pressure wherein the manometer package constitutes an integral structural portion of the manometer, comprising an elongate body member defining a first package portion, cover means connected to said body member to define a closed chamber therebetween, said cover means defining a second package portion, means defining a manometer lumen extending longitudinally within said chamber and having opposed upper and lower ends within said chamber, said upper end being open to said chamber for the flow of air between the chamber and the upper portion of said lumen, said body member being transparent in at least portions thereof adjacent said lumen so that when liquid is in said lumen its level can be seen through said body member, and scale means including indicia extending longitudinally adjacent said lumen for indicating pressure, at least a portion of said cover means being separable from a portion of said body member to permit access to said lower end of said lumen for connecting said lumen with a source of liquid and connecting said chamber with the atmosphere, whereby said lower end of said lumen is contained within said chamber and is inaccessible prior to use but accessible for connection to said source of liquid after said portion of said cover means is separated from said portion of said body member.

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