US3817199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landing craft for conveying dry cargo over ice
Assignee: Air Logistics Corp
•
Filing: 1972-03-02
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Granted: 1974-06-18
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Expires: 1992-03-02
Abstract
Abstract There is provided a vessel consisting of one or more submerged propulsion hulls connected to a cargo carrying platform suspended over ice by a plurality of interconnecting columns. At least the frontal columns contain ice chipping systems for cutting a path through ice between the submerged hull or hulls and the platform. The columns are preferably pivotably mounted to both the hull or hulls and the platform to permit adjustment of the angle of the column during the ice cutting function and to permit the platform to be lowered onto the surface of the ice when the cargo meets its destination. In the preferred construction, the platform carries a pallet upon which cargo is stored during transit. The pallet is slidably mounted on the platform and can be removed at the destination. Once the cargo is removed, it may be returned to the platform for a return trip.
Inventors
- 👤 J Schirtzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:28
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/42; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/107; B63B27/00; B63B27/14; B63B27/143; B63B35/00; B63B35/08; B63B35/12; B63B1/12; B63B2001/128; B63B2027/141
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
211 words
A semi-submerged vessel for the transport of cargo over ice which comprises: a. a submerged hull consisting at least: i. means for propelling the vessel; ii. means for steering the vessel; iii. means for adjusting the position of the hull relative to the undersurface of ice; b. a surfaced platform providing along the port and starboard sides thereof raised sections, said sections containing; i. housing for the crew of the vessel; ii. means to control the movement of the vessel; iii. means for generating energy required for the vessel, and a zone between said raised port and starboard sections for housing cargo; c. a plurality of columns pivotably secured to and positioned along both the port and starboard sides of said platform, and pivotably connected to said submerged hull, said columns adapted to rotate in a boW to stern direction to adjust the angle of the columns during transit and permit the platform to be lowered to the ice or ground level at destination and cooperate with said hull to maintain said platform above the surface of ice during transit, at least the frontal columns containing bow oriented powered ice chipping means for cutting a path through the ice and means to transmit energy from said platform to said submerged hull.
Claim 2
Dependent Claim
211 words
A semi-submerged vessel for the transport of cargo over ice which comprises: a. a submerged hull consisting at least: i. means for propelling the vessel; ii. means for steering the vessel; iii. means for adjusting the position of the hull relative to the undersurface of ice; b. a surfaced platform providing along the port and starboard sides thereof raised sections, said sections containing; i. housing for the crew of the vessel; ii. means to control the movement of the vessel; iii. means for generating energy required for the vessel, and a zone between said raised port and starboard sections for housing cargo; c. a plurality of columns pivotably secured to and positioned along both the port and starboard sides of said platform, and pivotably connected to said submerged hull, said columns adapted to rotate in a boW to stern direction to adjust the angle of the columns during transit and permit the platform to be lowered to the ice or ground level at destination and cooperate with said hull to maintain said platform above the surface of ice during transit, at least the frontal columns containing bow oriented powered ice chipping means for cutting a path through the ice and means to transmit energy from said platform to said submerged hull.
Claim 3
Dependent Claim
30 words
A semi-submerged vessel as claimed in claim 1 in which the submerged hull consists of a pair of spaced interconnected hulls, each hull independently provided with propulsion and steering means.
Claim 4
Dependent Claim
33 words
A semi-submerged vessel as claimed in claim 2 in which the hulls are also interconnected by adjustable vanes for use in adjusting the position of the hull relative to undersurface of the ice.
Claim 5
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 1 in which each interconnecting column contains ice chipping means.
Claim 6
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 2 in which each interconnecting column contains ice chipping means.
Claim 7
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 1 in which each interconnecting column contains ice chipping means.
Claim 8
Dependent Claim
32 words
A semi-submerged vessel as claimed in claim 1 in combination with a cargo carrying pallet adapted to fit into the zone between the raised port and starboard section of the surfaced platform.
Claim 9
Dependent Claim
30 words
A semi-submerged vessel as claimed in claim 7 in which the zone between the raised port and starboard positions are equipped with means to receive said pallet in slidable relationship.
Claim 10
Dependent Claim
18 words
A semi-submerged vessel as claimed in claim 8 in which the means to receive said pallet is retractable.
Claim 11
Dependent Claim
36 words
A semi-submerged vessel as claimed in claim 7 in which the pallet is provided with self contained means for movement onto and from the zone between the raised port and starboard sections of the surfaced platform.
Claim 12
Dependent Claim
32 words
A semi-submerged vessel as claimed in claim 2 in combination with a cargo carrying pallet adapted to fit into the zone between the raised port and starboard section of the surfaced platform.
Claim 13
Dependent Claim
30 words
A semi-submerged vessel as claimed in claim 11 in which the zone between the raised port and starboard positions are equipped with means to receive said pallet in slidable relationship.
Claim 14
Dependent Claim
18 words
A semi-submerged vessel as claimed in claim 12 in which the means to receive said pallet is retractable.
Claim 15
Dependent Claim
36 words
A semi-submerged vessel as claimed in claim 7 in which the pallet is provided with self contained means for movement onto and from the zone between the raised port and starboard sections of the surfaced platform.
Claim 16
Dependent Claim
28 words
A semi-submerged vessel as claimed in claim 1 in which the submerged hull includes means to monitor the passage of the hull under the surface of the ice.
Claim 17
Dependent Claim
28 words
A semi-submerged vessel as claimed in claim 2 in which the submerged hull includes means to monitor the passage of the hull under the surface of the ice.
Claim 18
Dependent Claim
99 words
A semi-submerged vessel as claimed in claim 1 in which the means to adjust the position of the vessel relative to the undersurface of the ice a horizontally disposed thrustports, extending from one side of a pair of projecting hull sections to the opposed side thereof, said horizontally disposed thrustport intersecting a vertically disposed thrustport extending the width of said extended hull sections, each containing means to induce a flow of water inwardly and outwardly therethrough and a longitudinal thrustport extending from bow of each hull extension and communicating with the intersection of said horizontally and vertically disposed thrustport.
Claim 19
Dependent Claim
27 words
A semi-submerged vessel as claimed in claim 1 in which the submerged hull at least contains compartments for carrying the fuel and water supply for the vessel.
Claim 20
Dependent Claim
19 words
A semi-submerged vessel as claimed in claim 18 in which the submerged hull also contains fluid cargo transport compartments.
Claim 21
Dependent Claim
30 words
A semi-submerged vessel as claimed in claim 2 in which said pair of spaced interconnected hulls at least coNtain compartments for carrying the fuel and water supply for the vessel.
Claim 22
Dependent Claim
22 words
A semi-submerged vessel as claimed in claim 20 in which said pair of spaced interconnected hulls also contain fluid cargo transport compartments.
Claim 23
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 18 in which said compartments are formed of flexible diaphragms.
Claim 24
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 19 in which said compartments are formed of flexible diaphragms.
Claim 25
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 20 in which said compartments are formed of flexible diaphragms.
Claim 26
Dependent Claim
17 words
A semi-submerged vessel as claimed in claim 21 in which said compartments are formed of flexible diaphragms.
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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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |