Computer controlled method of operating a swimming pool filtration system

• US 5,804,080 A
• Filed: 10/09/1996
• Issued: 09/08/1998
• Est. Priority Date: 10/21/1994
• Status: Expired due to Term

• Current Assignee: Bodo Klingenberger
• Original Assignee: Bodo Klingenberger
• Inventors: Klingenberger, Bodo
• Primary Examiner(s): POPOVICS, ROBERT J
• Application Number:
  US08/727,938
• Time in Patent Office: 699 Days
• Field of Search: 210/739, 210/741, 210/744, 210/169, 210/416.2, 210/86, 210/98, 210/103, 210/104, 210/105, 210/143, 210/248, 364/502, 4/490, 4/492, 4/508, 4/509, 4/510
• US Class Current: 210/739
• CPC Class Codes: B01D 24/00 Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof B01D27/02 takes precedence
• CPC Class Codes: B01D 24/105 downward filtration without specifications about the filter material supporting means
• CPC Class Codes: B01D 24/40 for feeding
• CPC Class Codes: B01D 24/48 integrally combined with devices for controlling the filtration
• CPC Class Codes: B01D 24/4869 by level measuring
• CPC Class Codes: E04H 4/1209 Treatment of water for swimming pools filters B01D

Abstract

A method of operating a filter system of a swimming pool in proportion to the degree of contamination of the water in said pool by processing a signal representative of the number of persons within the pool and other values characteristic of the pool and the filter system to derive a signal for controlling the output of said filter system.

Claims

1. A method of operating an arrangement of a filter including a pipe system and a feed pump of a swimming pool in proportion to the degree of contamination of water in said pool, comprising the steps of:

storing in a computer memory values representative of naturally occurring losses of said water (evaporation) per unit of time, of fresh water added, of water loss due to spillage, of said pipe system, and of the output of said feed pump and the flow resistance of said filter arrangement;

deriving a value a value indicative of the number of persons within said swimming pool;

processing said stored values and said indicative value to obtain a signal representative of said degree of water pollution; and

feeding said pollution signal to means for controlling the output of said filter arrangement.

2. The method of claim 1, wherein said swimming pool is provided with an overflow tank adapted to receive water from said swimming pool to a predetermined level and wherein said indicative value is determined by measuring said level of water in said overflow tank.

3. The method of claim 2, wherein said feed pump is driven by a variable speed electric motor and wherein said output of said filter arrangement is controlled by controlling the speed of said motor.

4. The method of claim 3, wherein said means for controlling the output of said filter arrangement comprises a frequency converter connected to said electric motor and wherein said pollution signal is fed to said frequency converter for controlling the speed of said electric motor.