Inflatable Boat Lift Assembly for Portable Hull Protection
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Solution Overview
Problem
Existing boat docks and lifts often require complete removal of the boat from the water, are bulky, and can damage the hull or engine due to submersion, necessitating a portable and hull-protecting solution.
Innovation Solution
An inflatable lift assembly comprising port-side and starboard-side inflatable floats connected by cables, with anchor tabs and ties for securing to the boat, allowing the boat to be lifted and supported above water using compressed air to expand the float widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional boat docks and lifts are used to completely remove the boat from water, then the boat is supported above water, but the apparatus becomes large, heavy, and immobile
Solution Approach 1:
The patent uses inflatable floats filled with air or other gases to provide buoyancy and support the boat. The floats can be inflated to the required volume to support the boat weight, then deflated for easy storage and transport, eliminating the need for heavy permanent structures.
Solution Approach 2:
The inflatable floats can be dynamically inflated and deflated as needed. When inflated, they provide the necessary support capacity; when deflated, they become compact for storage. This dynamic capability allows the same structure to serve both heavy-duty support and portable storage requirements.
2Reliability
If traditional docks and lifts completely remove the boat from water, then the boat is supported above water, but the apparatus is bulky and difficult to move
Solution Approach 1:
The inflatable floats can be deflated to a compact size for easy transport between different water bodies, then inflated at the destination to provide full support capacity. This pneumatic capability enables the apparatus to be both portable and functionally adequate.
Solution Approach 2:
The dynamic inflation/deflation capability allows the apparatus to adapt between two states: a compact, portable state for transport and storage, and a fully inflated, high-capacity state for boat support. This resolves the contradiction between portability and functional adequacy.
3Ease of operation
If the boat hull or outboard engine is kept submerged under water, then the boat remains in water, but aquatic growth and marine life may damage the hull or engine
Solution Approach 1:
The inflatable floats provide upward buoyant force to counteract the boat's weight, lifting the hull and engine out of the water. This counterbalancing action removes the boat from the harmful aquatic environment while maintaining operational accessibility.
Solution Approach 2:
The inflatable floats act as an intermediary support mechanism between the boat and the water. Instead of the boat directly contacting the water (which causes damage), the floats mediate by providing support above water while allowing controlled water access for operations.
4Reliability
If the inflatable float width is maximized to support the boat, then the boat support capacity increases, but the storage space requirement increases
Solution Approach 1:
The inflatable floats dynamically change volume between a large inflated state for boat support and a small deflated state for storage. This dynamic volume adjustment resolves the contradiction between requiring large support capacity during use and small storage volume during non-use.
Solution Approach 2:
The pneumatic inflation system allows the floats to expand to the necessary volume for supporting the boat weight, then deflate to a compact size for storage. The same structure provides both large functional volume and small storage volume through controlled air pressure changes.
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 assembly provides a portable, hull-protecting lift that supports boats above water, preventing damage and enabling easy movement between bodies of water, while being compact for storage.
Implementation Method 1
The inflatable lift assembly includes an elongated port-side body configured to expand a port-side width of the elongated port-side body when the interior of the port-side inflatable float is filled with compressed air
Implementation Method 2
an inflatable lift assembly for supporting a boat or other watercraft above a body of water
Data Source
AI summary
An inflatable lift assembly for raising and supporting a boat over a body of water, without completely removing the boat from the body of water, includes a port-side inflatable floats connected to a starboard-side inflatable float by a plurality of cables. The inflatable floats each include an outer end opposite an inner end, a valve attached to the floats proximate the outer end and in fluid communication with an interior of each float, and an anchor tab where the plurality of cables couples the two floats together. The inflatable floats may be inflated by pumping compressed air into the interiors through the valves while the floats are placed under the boat, causing the floats to gently lift the boat slightly above the water. Embodiments may be sized according to the particular size of the boat being supported.