US3848560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amphibious motorcycle
Assignee: BOSE S DU
•
Filing: 1973-08-20
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Granted: 1974-11-19
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Expires: 1993-08-20
Abstract
Abstract An amphibious motorcycle which has the usual conventional structure for operation on land and includes a pair of forward skis which are disposed on either side of the front wheel and are fixedly attached to the front fork with suitable brackets so that when the front wheel is turned, i.e., left or right, the skis turn therewith. Also, included are a pair of rearward skis which are disposed on either side of the rear wheel and are fixedly attached to the frame with suitable brackets. The forward and rearward skis keep the motorcycle waterborne so long as the motorcycle is suitably propelled. The machine is propelled in the water by paddles which are disposed between the spokes of the rear wheel and are fixedly attached thereto. The machine is operated on the water by first being accelerated on a hard surface, e.g., a floating runway or the shore, and then is driven into the water whereupon the skis keep the machine waterborne as the paddles sustain the propulsion.
Inventors
- 👤 Bose S Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:53
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0061; B60F3/0084
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
158 words
The combination with a motorized non-buoyant vehicle having a frame, a guidable fork pivotally attached to said frame for pivotal movement about a substantially vertical axis, a forward wheel rotatably attached to said fork, a rearward wheel journaled to said frame, and drive means attached to said frame for rotatably driving at least one of said forward and rearward wheels; forward strip-like ski means attached to said fork for supporting the forward portion of the vehicle upon the surface of a body of water as the vehicle is propelled, rearward strip-like ski means attached to said frame adjacent said rearward wheel for supporting the rearward portion of the vehicle upon the surface of the water as the vehicle is propelled, and propelling means coupled to said drive means for propelling the vehicle over the surface of the water, said forward and rearward ski means constituting the sole supporting means for said vehicle only while under power in water.
Claim 2
Dependent Claim
158 words
The combination with a motorized non-buoyant vehicle having a frame, a guidable fork pivotally attached to said frame for pivotal movement about a substantially vertical axis, a forward wheel rotatably attached to said fork, a rearward wheel journaled to said frame, and drive means attached to said frame for rotatably driving at least one of said forward and rearward wheels; forward strip-like ski means attached to said fork for supporting the forward portion of the vehicle upon the surface of a body of water as the vehicle is propelled, rearward strip-like ski means attached to said frame adjacent said rearward wheel for supporting the rearward portion of the vehicle upon the surface of the water as the vehicle is propelled, and propelling means coupled to said drive means for propelling the vehicle over the surface of the water, said forward and rearward ski means constituting the sole supporting means for said vehicle only while under power in water.
Claim 3
Dependent Claim
35 words
The combination of claim 1 in which is included guide means coupled to said fork for manually controlling the direction in which the vehicle travels as it is propelled over the surface of the water.
Claim 4
Dependent Claim
56 words
The combination of claim 2 in which said guide means includes disc means fixedly mounted in place along the vertical center line of said forward wheel whereby pivoting said fork about said substantially vertical axis being effective to control the direction in which the vehicle travels as it is propelled over the surface of the water.
Claim 5
Dependent Claim
42 words
The combination of claim 3 in which said guide means additionally includes forward skeg means fixedly attached to said forward ski means subjacent thereof for submerging a predetermined distance into the water to enhance the control effect achieved by said disc means.
Claim 6
Dependent Claim
29 words
The combination of claim 2 in which is included stabilization means attached to said rearward skid means for stabilizing the vehicle in the various directions in which it travels.
Claim 7
Dependent Claim
39 words
The combination of claim 5 in which said stabilization means includes rearward skeg means fixedly attached to said rearward ski means subjacent thereof for submerging a predetermined distance into the water for providing stability and maneuverability to the vehicle.
Claim 8
Dependent Claim
45 words
The combination of claim 1 in which said propelling means includes a plurality of paddle like members symmetrically arranged radially about said rearward wheel and fixedly attached thereto for rotation therewith, said rearward wheel being coupled to said drive means and being rotatably driven thereby.
Claim 9
Dependent Claim
208 words
The combination with a conventional motorized non-buoyant vehicle having a frame, a guidable fork pivotally attached to said frame for pivotal movement about a substantially vertical axis, a forward wheel rotatably attached to said fork, a rearward wheel journalled to said frame, and drive means attached to said frame for rotatably driving said rearward wheel; a pair of forward strip-like skis attached to said fork for supporting the forward portion of the vehicle upon the surface of a body of water as the vehicle is propelled, a pair of rearward strip-like skis attached to said frame adjacent said rearward wheel for supporting the rearward portion of the vehicle upon the surface of said body of water as the vehicle is propelled, a pair of forward skeg means fixedly attached respectively to said pair of forward skis subjacent thereof for providing directional guidance of the vehicle, a pair of rearward skeg means fixedly attached respectively to said pair of rearward skis subjacent thereof for providing stability and maneuverabiLity to the vehicle, and propelling means coupled to said drive means for propelling the vehicle over the surface of the water said forward and rearward ski means constituting the sole supporting means for said vehicle only while under power in water.
Claim 10
Dependent Claim
208 words
The combination with a conventional motorized non-buoyant vehicle having a frame, a guidable fork pivotally attached to said frame for pivotal movement about a substantially vertical axis, a forward wheel rotatably attached to said fork, a rearward wheel journalled to said frame, and drive means attached to said frame for rotatably driving said rearward wheel; a pair of forward strip-like skis attached to said fork for supporting the forward portion of the vehicle upon the surface of a body of water as the vehicle is propelled, a pair of rearward strip-like skis attached to said frame adjacent said rearward wheel for supporting the rearward portion of the vehicle upon the surface of said body of water as the vehicle is propelled, a pair of forward skeg means fixedly attached respectively to said pair of forward skis subjacent thereof for providing directional guidance of the vehicle, a pair of rearward skeg means fixedly attached respectively to said pair of rearward skis subjacent thereof for providing stability and maneuverabiLity to the vehicle, and propelling means coupled to said drive means for propelling the vehicle over the surface of the water said forward and rearward ski means constituting the sole supporting means for said vehicle only while under power in water.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |