Apparatus and methods for accurate measuring and mixing of hair color products that may comprise a machine into which a stylist may insert their color tubes and precisely measure the necessary quantity of color into integrated a color mixing bowl.

Disclosed embodiments provide a liquid product dispensing system. Cans are transported onto a weigh plate. The weigh plate is coupled to a dispensing system such that, when the can is filled with product to a predetermined weight, the dispensing system stops the flow of product into the can. A transport system then moves the filled cans from the weigh plate and moves another set of empty cans onto the weigh plate, and the process continues, enabling high-speed production of canned beverages.

Disclosed embodiments provide a liquid product dispensing system. Cans are transported onto a weigh plate. The weigh plate is coupled to a dispensing system such that, when the can is filled with product to a predetermined weight, the dispensing system stops the flow of product into the can. A transport system then moves the filled cans from the weigh plate and moves another set of empty cans onto the weigh plate, and the process continues, enabling high-speed production of canned beverages.

A filter arrangement with a top element and a bottom element and a filter element therebetween captures oversized particles on the upper surface of the filter element and tangentially rinses these particles using an elution fluid to provide a concentration of particles in a relatively low volume of fluid for further analysis. A configuration using a slider valve may also be utilized. Additionally, an arrangement of supply and receiving containers may be used to minimize the number of containers required. A mass flow meter may be incorporated to measure the flow of elution fluid. Finally, a wash stage of the filtering process may be used to introduce stain onto the particles for further analysis, such as that associated with Gram staining and these stained particles may be further analyzed.

A filter arrangement with a top element and a bottom element and a filter element therebetween captures oversized particles on the upper surface of the filter element and tangentially rinses these particles using an elution fluid to provide a concentration of particles in a relatively low volume of fluid for further analysis. A configuration using a slider valve may also be utilized. Additionally, an arrangement of supply and receiving containers may be used to minimize the number of containers required. A mass flow meter may be incorporated to measure the flow of elution fluid. Finally, a wash stage of the filtering process may be used to introduce stain onto the particles for further analysis, such as that associated with Gram staining and these stained particles may be further analyzed.

A method can include obtaining a first weight measurement of a receptacle and obtaining a second weight measurement of the receptacle. The method can further include calculating a first difference between the first weight measurement and the second weight measurement, resulting in a reference dispensation value. The method can further include obtaining dispensation data, the dispensation data including a measured dispensation value. The measured dispensation value can correspond to a quantity of a substance dispensed from the receptacle, the quantity of the substance passing through a dispensation monitor coupled to the receptacle. The method can further include calculating a second difference between the reference dispensation value and the measured dispensation value. The method can further include determining that the second difference exceeds a threshold and adjusting the dispensation monitor in response to determining that the second difference exceeds the threshold.

A method can include obtaining a first weight measurement of a receptacle and obtaining a second weight measurement of the receptacle. The method can further include calculating a first difference between the first weight measurement and the second weight measurement, resulting in a reference dispensation value. The method can further include obtaining dispensation data, the dispensation data including a measured dispensation value. The measured dispensation value can correspond to a quantity of a substance dispensed from the receptacle, the quantity of the substance passing through a dispensation monitor coupled to the receptacle. The method can further include calculating a second difference between the reference dispensation value and the measured dispensation value. The method can further include determining that the second difference exceeds a threshold and adjusting the dispensation monitor in response to determining that the second difference exceeds the threshold.

A method for dosing a product in liquid form in containers includes transferring doses of product by a dosing unit from a feed tank, controlling through a bubble sensor the doses to the containers to detect the presence and volume of gas bubbles in each dose, delivering the doses inside the containers, measuring with a weight sensor a weight of the doses in the containers, and arranging a processing and control unit to receive and process a weight signal of the weight sensor and a bubbles signal from the bubble sensor. The processing and control unit is connected to the dosing unit to modify the pre-established quantity of product supplied for each dose as a function of the weight depending on whether the bubble sensor detects a volume of gas bubbles in the doses that is lower than a predefined reference value.

A method for dosing a product in liquid form in containers includes transferring doses of product by a dosing unit from a feed tank, controlling through a bubble sensor the doses to the containers to detect the presence and volume of gas bubbles in each dose, delivering the doses inside the containers, measuring with a weight sensor a weight of the doses in the containers, and arranging a processing and control unit to receive and process a weight signal of the weight sensor and a bubbles signal from the bubble sensor. The processing and control unit is connected to the dosing unit to modify the pre-established quantity of product supplied for each dose as a function of the weight depending on whether the bubble sensor detects a volume of gas bubbles in the doses that is lower than a predefined reference value.

Disclosed is an apparatus for emptying bottles containing frozen blood product. The apparatus comprises an automatic unit for checking the weight of emptied bottles. The automatic unit comprises a load detection system for measuring the weight of emptied bottles, an air pressure measuring unit for measuring the pressure in the room in which the emptying apparatus is located, and a measurement compensation unit for correcting the load value on the basis of the room pressure measurement. The weight-checking unit generates a not empty signal if the value of the corrected load is greater than or equal to a predetermined value.