Duration Spray Pump with Escapement Mechanism
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Solution Overview
Problem
Conventional mechanically operated aerosol dispensers are bulky, costly, and require multiple steps for operation, making them inconvenient and expensive, while chemically driven systems face environmental and safety concerns, lacking a compact and cost-effective alternative for duration spray mechanisms.
Innovation Solution
A mechanically operated spray dispenser with a one-turn actuated duration spray pump system that eliminates the need for charging chambers, using a rotatable actuating collar connected through an escapement mechanism with a drive screw and energy storage means like springs or pneumatic pressure to achieve a duration spray without multiple strokes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional mechanically operated aerosol dispensers use storage chambers and multiple steps for operation, then product can be dispensed over a certain duration, but the device becomes bulky, complex, and difficult to operate
Solution Approach 1:
The patent removes the storage chamber component from conventional mechanically operated dispensers. Instead of storing product in a separate chamber and transferring it, the system draws product directly from the main container through a valve mechanism activated by a single turn of the actuating collar, eliminating the intermediate storage and transfer steps that caused complexity
Solution Approach 2:
The actuating collar is designed to perform the product transfer action in advance during a single rotational movement. This preliminary action of drawing the metered amount of product into the dispensing chamber during the actuation stroke eliminates the need for separate charging and dispensing steps, reducing operational complexity while maintaining duration spray capability
2Duration of action of moving object
If conventional mechanically operated aerosol dispensers incorporate storage chambers and multiple操作步骤, then product can be dispensed over a certain duration, but the number of parts and material increases making them expensive to manufacture
Solution Approach 1:
By extracting and eliminating the storage chamber component, the patent reduces the total number of parts that need to be manufactured and assembled. The direct draw system uses fewer materials and simplifies the manufacturing process, reducing production costs while maintaining the duration spray function through the valve control mechanism
Solution Approach 2:
The patent combines the product storage, transfer, and dispensing functions into a more integrated system. The actuating collar mechanism performs both the metering and transfer functions in a single motion, eliminating the need for separate storage chamber and transfer mechanism components, thereby reducing part count and manufacturing complexity
3Duration of action of moving object
If conventional mechanically operated aerosol dispensers require multiple steps in operation, then product can be dispensed over a certain duration, but they become difficult to operate especially by persons suffering from disability such as arthritis
Solution Approach 1:
The system performs the product metering and chamber filling action during the single actuation stroke of the actuating collar. This preliminary action eliminates the need for separate charging steps that would require multiple operations, making the device operable with a single motion that is accessible to persons with limited hand strength or dexterity
Solution Approach 2:
The actuating collar mechanism segments the operation into a single rotational motion that accomplishes both metering and transfer. This segmented approach to the actuation mechanism allows the entire product transfer sequence to be completed in one continuous motion, reducing the number of discrete steps the user must perform
4Ease of operation
If chemically driven aerosol dispensers are used, then convenient operation is achieved, but adverse impact upon the environment and safety hazards increase
Solution Approach 1:
The patent replaces the chemical propellant system with a mechanically operated pump and valve system. The mechanical actuating collar drives a piston or diaphragm to pressurize and dispense the product, eliminating the need for chemical propellants and their associated environmental and safety hazards while maintaining convenient single-action operation
Solution Approach 2:
The system uses mechanical pneumatic pressure generated by the actuating collar mechanism to dispense the product. Instead of relying on chemical propellants to generate pressure, the mechanical system creates the necessary pressure through the actuation stroke, providing a safe and environmentally friendly alternative that maintains operational convenience
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 a convenient, compact, and cost-effective duration spray mechanism comparable to chemically energized dispensers, reducing operational complexity and manufacturing costs, suitable for various energy sources and products, with improved usability and commercial appeal.
Implementation Method 1
a rotatable actuating collar connected through an escapement mechanism with a drive screw that has an externally threaded shaft engaged with internal threads in a piston
Implementation Method 2
a rotatable actuating collar connected through an escapement mechanism with a drive screw
Implementation Method 3
energy storage means like springs or pneumatic pressure
Implementation Method 4
energy storage means like springs or pneumatic pressure
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
A power assembly (10) for dispensing product from a container (C) includes a pump mechanism (20) and an energy storage mechanism (40). The pump mechanism (20) includes a rotatable actuating collar (21) connected through an escapement mechanism (22) with a drive screw (23) with an externally threaded shaft (24) engaged with internal threads (25) in a piston (26). Rotation of the collar (21) reciprocates the piston (26) to store energy in the energy storage mechanism (40) and to draw product into a pump chamber (33) from which the product is dispensed. An actuator (50) is connected with a stem valve (34) to open it when the actuator (50) is depressed, enabling the energy storage mechanism (40) to push the piston (26) back to its at-rest position to force product from the pump chamber (33) and ready it for another dispensing cycle. Disengagement of the escapement mechanism (22) when the actuator (50) is depressed prevents rotation of the actuating collar (21). Different energy storage mechanisms can be interchangeably attached to the pump mechanism.