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:
Oct. 16, 2001
Filed:
Mar. 08, 2000
Albert W. Gebhard, Denver, CO (US);
Robert M. Parker, Aurora, CO (US);
Other;
Abstract
A filter use device is adapted for use with various types of containers, such as, liquid containers for water coolers in which the device includes a cap to be threaded onto an open end of the container, a filter cartridge in the cap which retains a conventional filter and a resilient pawl which is engageable with a disk having an indicator aligned with a slot in the cap and engageable with ratchet teeth to incrementally advance the indicator each time that the cap is threaded onto the end of the container; and when the indicator reaches the end of the slot is shifted to prevent any further advancement of the disk or passage of water through the filter or device and thereby signify the end of the life of the filter and the need for replacement of the filter.