Telescopic Window Cleaner With Manual Pumped Liquid Dispensing
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Solution Overview
Problem
Existing window cleaning implements face challenges with liquid dispensing, including wastage, weight, and mobility issues due to external drums or electric pumps, which hinder efficient and portable cleaning.
Innovation Solution
A manually activated pump system integrated with a detachable reservoir and flexible hose allows for calibrated and efficient liquid dispensing directly onto the surface, eliminating the need for external drums or electric pumps, ensuring portability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If an external drum or electric pump is used to supply liquid, then the liquid can be distributed continuously, but the weight and mobility of the operator are hindered
Solution Approach 1:
The invention extracts the liquid supply system from external components (drums and electric pumps) and integrates it into a compact manual pump mechanism attached to the pole. This removes the burden of heavy external equipment while maintaining liquid supply capability through a lightweight, portable reservoir and manual pumping action.
Solution Approach 2:
The manual pump system allows the operator to self-supply liquid without requiring external power sources or heavy drums. The operator manually operates the pump to transfer liquid from the reservoir to the distribution nozzle, eliminating dependence on external equipment and maintaining freedom of movement.
2Quantity of substance
If a manual sprayer with flexible hose and weight is used, then the entire liquid content can be withdrawn regardless of positioning, but the liquid cannot be dispensed in a calibrated quantity
Solution Approach 1:
The manual pump operates through periodic manual actions (pumping strokes), allowing the operator to control liquid dispensing in measured increments. Each pump stroke delivers a controlled amount of liquid, enabling calibrated dispensing while the operator can repeat the action to withdraw the entire liquid content as needed.
3Length of moving object
If a telescopic pole with swivel head and tube is used, then the implement can reach considerable heights, but the tube supplies an element of obstruction hindering the operator
Solution Approach 1:
The liquid supply system is segmented into separate functional components: a compact reservoir, a manual pump mechanism, and a small-bore hose to the nozzle. This segmentation eliminates the need for a large obstructive tube running along the pole, as the liquid is pumped only to the point of application rather than through a continuous tube system.
4Productivity
If a pump with lever and piston is used, then the liquid can be transferred quickly and in a calibrated manner, but the device complexity increases
Solution Approach 1:
The invention extracts only the essential components needed for manual pumping (lever, piston, and basic valve mechanism) from more complex pump designs. This simplified manual pump mechanism achieves calibrated liquid transfer at adequate speed without requiring complex mechanical systems, electrical components, or multiple moving parts.
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 solution enables efficient, calibrated liquid distribution without wastage, enhancing operator mobility and autonomy, while maintaining a compact and reliable design suitable for extended use.
Implementation Method 1
a manually actuated pump of the self-priming type is attached to the rear end sector
Implementation Method 2
a manually actuated pump of the self-priming type is attached to the rear end sector and draws the washing liquid from the container
Implementation Method 3
a partly flexible hose with the free end paired to a weight
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A window cleaning implement (10) comprises a tubular body divided into two rear (12) and front (14) sectors inserted telescopically one inside the other and connected by a threaded ring nut (16);the front sector supports a cleaning head (24) fitted with hooking devices for a cloth in microfibre or other suitable material. Said implement comprises, in addition, a removable reservoir (20) for the washing liquid which is drawn from it by means of a manual pump incorporated in said implement, channelled along a flexible hose (32) and dispensed through at least one nozzle (30) placed next to said cleaning head (24).