Ships – Building – Observation boats
Patent
1995-12-15
1997-01-21
Swinehart, Edwin L.
Ships
Building
Observation boats
441135, B63B 3500
Patent
active
055951333
ABSTRACT:
An air-to-water surface operating underwater viewing craft which succeeds in providing man with both speed and the same extravagant vision for underwater viewing that he/she possesses above the water with respect to field of view and clarity. This is achieved through proper implementation of a number of factors which are all locked in a perpetual relationship one to the other. The desired results are obtained by employment of a viewing window which is laterally curved around the sides of a prone viewers' face and which extends foreward and backwards sufficiently to exceed mans' field of vision threshold in all directions. The viewers' head is supported by a headrest which provides a viewing reference point for the viewers' eyes. Around this arrangement is built a flotational device which features two stabilizing pontoons positioned on starboard and port sides providing correct craft posture and predetermined draw. A two axis joystick controls two retracting electric thrusters providing full maneuverability. A viewing window curved on only one axis featuring a unique structural stabilizer, and electric thrusters which retract into their respective pontoons work together to provide speed and viewing performance that makes this invention stand alone.
REFERENCES:
patent: 3085356 (1963-04-01), Wayfield
patent: 3137873 (1964-06-01), Garrolinil
patent: 4598659 (1986-07-01), Chinnery
patent: 4691658 (1987-09-01), New
patent: 4840592 (1989-06-01), Anderson
patent: 4895539 (1990-01-01), Bender
Crystal Boats publication, date Unknown.
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