US3890771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquatic harvester with improved flotation system
Assignee: KUTTOTHARA ABRAHAM C DR
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Filing: 1973-01-19
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Granted: 1975-06-24
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Expires: 1993-01-19
Abstract
Abstract An improved aquatic harvester is disclosed having an aquatic craft comprising a plurality of pontoons secured below a flat deck member, a pick-up assembly mounted on the forward end of the craft to collect aquatic material both at and below the surface of the water and an above-the-water propulsion and steering system having an air propulsion unit. The improvement resides in the design of the pontoon members from at least one closed, integrally formed buoyant capsule constructed of a plastic material.
Inventors
- 👤 Thomas G Kelpin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:43
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/24; A; A01; A01D; A01D44/00; B63B35/00; B63H; B63H7/00; B63H7/02; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
An aquatic harvester comprising an aquatic craft having a plurality of pontoon members secured longitudinally beneath a deck member said deck member being adapted to receive a payload of harvested aquatic material, a pick-up assembly mounted on said craft for aquatic material both at and below the surface of the water and as the sole means of propulsion an steering, a single above-thewater propulsion and steering system having an air propulsion unit, mounting means for said air propulsion unit capable of rotating 360* about a vertical axis, wherein said unit comprises an engine, an aerodynamic propeller and means connecting the crankshaft of said engine to the propeller, each of said pontoon members comprising at least one closed, integrally formed buoyant capsule constructed of a synthetic resinous material.
Claim 2
Dependent Claim
127 words
An aquatic harvester comprising an aquatic craft having a plurality of pontoon members secured longitudinally beneath a deck member said deck member being adapted to receive a payload of harvested aquatic material, a pick-up assembly mounted on said craft for aquatic material both at and below the surface of the water and as the sole means of propulsion an steering, a single above-thewater propulsion and steering system having an air propulsion unit, mounting means for said air propulsion unit capable of rotating 360* about a vertical axis, wherein said unit comprises an engine, an aerodynamic propeller and means connecting the crankshaft of said engine to the propeller, each of said pontoon members comprising at least one closed, integrally formed buoyant capsule constructed of a synthetic resinous material.
Claim 3
Dependent Claim
22 words
The aquatic harvester according and claim 1, wherein each of said pontoon members comprises a plurality of said thermoplastic synthetic resinous capsules.
Claim 4
Dependent Claim
23 words
The aquatic harvester according to claim 2, wherein said thermoplastic synthetic resinous capsules comprise an integral molded exterior shell surrounding an internal cavity.
Claim 5
Dependent Claim
20 words
The aquatic harvester according to claim 3, wherein said internal cavity is at least partially filled with a foamed material.
Claim 6
Dependent Claim
33 words
The aquatic harvester according to claim 4, wherein said exterior shell is constructed of polyethylene and said foamed material is a synthetic resinous material selected from the group consisting of polystyrene and polyurethane.
Claim 7
Dependent Claim
25 words
The aquatic harvester according to claim 1, wherein each of said pontoon members comprises a single capsule having a plurality of individually sealed internal compartments.
Claim 8
Dependent Claim
22 words
The aquatic harvester according to claim 6, wherein each of said internal compartments is at least partially filled with a foamed material.
Claim 9
Dependent Claim
30 words
An aquatic harvester according to claim 1, further comprising a bed conveyor means overlying the deck member, said conveyor means being selectively operable to convey in fore and aft directions.
Claim 10
Dependent Claim
62 words
An aquatic harvester according to claim 1, further comprising mounting means pivotally connecting the pick-up assembly to the aquatic craft so that said assembly projects forward of said craft and is rotatable about a horizontal axis, and actuating means for rotating said assembly to vary the elevation of the forward end of said assembly and to hold the assembly at selected elevations.
Claim 11
Dependent Claim
55 words
An aquatic harvester according to claim 1, further comprising a pick-up assembly conveyor means which is operable to convey in both the fore and aft directions, whereby said pick-up assembly serves as an unloading means when the aft end of said pick-up assembly conveyor is rotated to a position contiguous with the bed conveyor means.
Claim 12
Dependent Claim
40 words
An aquatic harvester according to claim 8, further comprising a horizontal cutter means located adjacent the forward edge of the pick-up assembly and mechanical operating means for said cutter means, said operating means being driven by the pick-up conveyor means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |