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. 11, 2003
Filed:
Nov. 14, 2000
Peter Gladstone, Arlington, MA (US);
John Gundlach, Acton, MA (US);
Hans-Georg Liemke, San Francisco, CA (US);
Thomas C. Merle, Ashland, MA (US);
Other;
Abstract
A tire pressure indication device is provided that continuously monitors pressure of a tire and instantaneously generates a visual display having an easy to read indication as soon as the tire pressure falls below a safe threshold limit. This device includes a dome shaped upper end. A two color dome shaped indicator element is disposed therein having two colors or other visually distinguishable markings which are visible through viewing areas. The dome element is rotatable in response to sensed tire pressure to provide a visual indication of low pressure and another visually distinct indication of safe pressure. The lower end of the body includes a connector to be fitted or threaded onto the valve stem of a tire. Multiple seals are provided within the device to substantially eliminate air or gas from escaping to the atmosphere. Thereby, the device can remain on the tire valve and monitor pressure for long periods of time.