Air filter timer
OwnerJohn Dermodyinventor
Life of this patent
Estimating the term…
Abstract
A novel air filter and timer for alerting persons responsible for changing or cleaning the air filter that it is time for servicing. An audible alarm is provided on the timer to emit a prolonged or intermittent audible alarm to indicate the need for servicing. The alarm can be incorporated into the filter or made separately and affixable to an air filter. The alarm sounds after a set time period to alert the user to change the filter.
Claims20
An air filter alarm system comprising:
- an air filter body having a filtering media and a filter media housing;
- a timer affixed to said air filter body for counting between a start position and an alarm position;
- said timer having an alarm activated when the timer reaches said alarm position.
An air filter alarm system for an air conditioning system comprising:
- an air filter body having a filtering media and a filter media housing;
- a timer affixed to said air filter body and having an alarm and a timing circuit;
- said alarm having an off position and an on position;
- said timer timing circuit for timing a preselected time period;
- said timer moving said alarm from said off position to said on position after the elapse of said preselected time period;
- said alarm emitting an alert signal when said alarm is in said on position.
An air filter alarm for use on an air conditioning system having an air filter body having a filtering media and a filter media housing, said air filter alarm comprising:
- a timer mountable to the air filter body and having an alarm and a timing circuit;
- said alarm having an off position and an on position;
- said timer timing circuit for timing a preselected time period;
- said timer moving said alarm from said off position to said on position after the elapse of said preselected time period on said timing circuit;
- said alarm emitting an alert signal when said alarm is in said on position.
Dependencies are inferred from the claim text.