Hand-Held Teat Cleaning Applicator With Static Mixer
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Solution Overview
Problem
Current teat cleaning systems for milk-producing animals are inefficient due to manual labor requirements, inadequate cleaning of shorter teats, discomfort caused by high-speed brushes, inconsistent disinfectant delivery, and premature wear of components, especially in varying water qualities and different teat lengths.
Innovation Solution
A system with a hand-held applicator using an aqueous chlorine dioxide disinfectant solution at 100-200 ppm, delivered with a static mixer for consistent concentration, and brushes rotating at 400-700 rpm, specifically designed for American dairy cow teat lengths, with nylon bristles and a design that accommodates different teat lengths and prevents debris from entering gear components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual dipping method is used to clean teats, then cleaning effectiveness is improved, but labor intensity and time consumption increase significantly
Solution Approach 1:
The patent replaces manual mechanical dipping with an automated brush-based mechanical cleaning system. The applicator uses rotating brushes that mechanically scrub the teat surface while dispensing cleaning solution, eliminating the need for manual immersion and towel drying. This automation maintains cleaning effectiveness while dramatically improving productivity for large-scale dairy operations.
Solution Approach 2:
The applicator is designed to be self-contained with an integrated solution reservoir and dispensing mechanism. The system automatically delivers the cleaning solution to the brushes and applies it during the brushing operation, eliminating the need for separate dipping and drying steps. The operator simply guides the applicator along the teat, and the system performs the complete cleaning function autonomously.
2Productivity
If high-speed rotating brushes (1000 rpm) are used to clean teats, then cleaning speed is improved, but animal discomfort increases
Solution Approach 1:
The patent changes the rotational speed parameter from the conventional 1000 rpm to a reduced range of 400-700 rpm. This parameter adjustment maintains adequate cleaning effectiveness while significantly reducing the harmful effect of animal discomfort. The slower rotation allows the brushes to gently scrub the teat surface without causing irritation that could affect milk production.
3Reliability
If polypropylene bristle brushes are used at high speed, then cleaning capability is improved, but component wear increases due to debris and lubricant amalgamation
Solution Approach 1:
The patent specifies using nylon bristles instead of polypropylene, representing a material substitution that improves durability. Nylon is more resistant to the degrading effects of debris-laden lubricant amalgamation. Additionally, the reduced rotational speed of 400-700 rpm decreases the mechanical stress and wear on gears, bushings, and other moving components, extending their service life while maintaining cleaning capability.
4Device complexity
If teat cleaning brushes are positioned far from the teat tip, then system simplicity is maintained, but cleaning effectiveness for shorter teats is reduced
Solution Approach 1:
The patent introduces an adjustable brush positioning mechanism that allows the operator to dynamically adjust the distance between the brushes and the teat tip. This dynamic adjustment capability enables effective cleaning of shorter teats (1.8-1.9 inches) while maintaining the ability to handle longer teats, all within a relatively simple applicator design that does not require complex mechanical systems.
5Reliability
If aqueous chlorine dioxide solution at 75 ppm is used, then disinfection is provided, but inconsistent concentration results in variable cleaning effectiveness
Solution Approach 1:
The patent incorporates a feedback mechanism through the use of a static mixer that ensures consistent blending and delivery of the chlorine dioxide solution. The system monitors and maintains the solution concentration at the target level of 100-200 ppm, providing feedback control to compensate for variations in water quality or solution preparation, thereby ensuring consistent disinfection effectiveness across all cleaning operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides effective teat cleaning with reduced discomfort, longer residual disinfectant contact time, and extended component lifespan, improving milk production quality and reducing mastitis risks.
Implementation Method 1
an aqueous chlorine dioxide disinfectant solution... for cleaning the teats
Implementation Method 2
delivered with a static mixer for consistent concentration
Implementation Method 3
brushes rotating at 400-700 rpm, specifically designed for American dairy cow teat lengths
Data Source
AI summary
An embodiment of the invention is directed to a system for cleaning teats of multiple milk-producing animals, wherein the animals are housed in a parlor area and the teats are cleaned or disinfected before a milking operation is started. The system comprises a disinfectant solution source provided at the parlor area; and, a hand-held applicator having a housing volume within which one or more scrubbing elements are positioned for engaging a teat of the milk-producing animal having been inserted in the volume for cleaning. The scrubbing elements include a brush that has an array of bristles including a first set of bristles having a first radial length and a second set of bristles that have a second radial length that is longer than the first radial length.