Class / Patent application number | Description | Number of patent applications / Date published |
440071000 | Propeller guard | 8 |
20110009018 | BOAT PROPELLER SHIELD - A propeller shield that is designed to pivot over and away from a distal face of a propeller on a motorized boat. Generally, when the boat is at rest or moving in reverse through water, the propeller shield pivots down over the propeller's distal face and prevents accidental bodily contact with the propeller. As the boat moves forward in the water, the propeller shield pivots up and away from the propeller to allow the boat to move forward without the propeller shield causing an undesirable amount of drag or otherwise adversely affecting the boat's performance. Typically, the propeller shield has a shield member, which is sized and shaped to cover the propeller's distal face, and a connection mechanism, which attaches the shield member to the boat. In some cases, the shield member optionally comprises one or more fluid vents and hydroplane surfaces. | 01-13-2011 |
20120083175 | Underwater protective system to inhibit marine growth - A protective system for underwater installation on the propeller inhibits marine growth from fouling the propeller. The system includes a flexible material sized and shaped so as to be capable of enclosing the propeller. A member such as a clamp or clip maintains the flexible material in a state enclosing the propeller. The system further includes a link (such as a piece of line) having one end attached to the member and/or the flexible material and a free second end. The link extends to a location proximate to the boat at or above the waterline of the boat wherein the link can be retrieved by a user. A tug on the link releases the flexible material from the propeller permitting the retrieval of the link, the member and the flexible material as a unit from the propeller without the aid of a diver. | 04-05-2012 |
20120309243 | Propulsion protection device - The Propulsion Protection Device includes rigid inclined deflection surfaces in the configuration of three or four rails/bars affixed, permanently and/or removable, both to the transom and to the bottom of a hull of a watercraft. The unit is aligned parallel with the longitudinal axis of the watercraft. At the forward most attachment point, approximately mid-point between the stern and bow, the rails/bars are flush and smooth with the hull/bottom. At the rear/transom, the rails/bars extend below the propeller, beyond the arc of the propeller, and rigid engine parts. There is a calculated inclination along the length of the rail/bars, thereby creating a deflection effect. | 12-06-2012 |
20130090027 | SKEG PROTECTOR APPARATUS AND METHOD OF MAKING - An apparatus and method of manufacturing a skeg protector to cover a motorboat skeg to prevent damage to the skeg and to the propellers. The SkegProtector™ apparatus is made of a composite of non-stainless steel woven material of high material strength and durability, such as carbon fiber, Kevlar®, fiberglass, titanium, and polyethylene fiber. It is affixed over the skeg using marine grade underwater adhesive, and without installing bolts or other mechanical means to secure it. Methods of manufacture comprise the use of curing using a heated platen press on aluminum molds encasing multiple layers (7) of woven material and a mandrel. | 04-11-2013 |
20130189884 | Propeller Protection Apparatus - The present invention provides propeller protection apparatus surrounding a turnable propeller assembly operating beneath a bottom hull of a watercraft. The propeller protection apparatus includes one or more deflecting members; one or more support members; one or more removable axles; and two or more removable wheels. | 07-25-2013 |
20140065903 | Guard and Method for Protecting Wildlife - A guard for protecting wildlife is mounted on an outboard motor having a propeller and keel below an anti-ventilation plate. The guard has a spaced pair of bars each with an upper section, a lower section and between them a midsection. The upper sections of the bard can be attached to opposite sides of the anti-ventilation plate in order to position the lower sections below the propeller and keel. The lower sections have a smooth, projection-free streamline for avoiding snagging on sea weed. | 03-06-2014 |
20140335749 | PROTECTOR FOR PROPELLER - Aspects of the present invention are directed to a propeller protector that can accommodate propeller of different sizes and is designed to be easily installed or removed from a propeller. The propeller protector includes a novel retaining device for securing the protector onto the blades of the propeller without using straps or similar devices. The novel retaining device has a high level of adaptability to accommodate blades of different sizes and shapes. | 11-13-2014 |
440072000 | Cage or screen | 1 |
20130157531 | Protective Housing For A Propeller Of A Submarine Vehicle, Connection System With A Connecting Cable And The Use of Such Protective Housing For Incorporating A Connecting Cable - The invention relates to a protective housing for a propeller of a submarine vehicle. The invention also relates to a connection system for a propeller-driven submarine vehicle with a submarine cable and such a protective housing. The invention further relates to the use of a protective housing for a propeller of a submarine vehicle for receiving a strain relief connection for a connecting cable. The invention enables low-cost communication between a propeller-driven submarine vehicle and a support platform by means of a connecting cable which is hydrodynamically streamlined and ensures strain-relief for the connecting cable. The connecting cable is fixed to the periphery of the protective housing, outside the working space of the propeller located on a propeller axis, and a strain-relief cable-holding fixture is arranged for a connecting cable on the submarine vehicle. | 06-20-2013 |