US4752079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhanced traction wheel assembly
Assignee: SURFCO
•
Filing: 1985-07-31
•
Granted: 1988-06-21
•
Expires: 2005-07-31
Abstract
Abstract A wheel capable of changing traction surface and track by varying the usual axis of rotation. The amount of this contacting surface can be varied and the path can be varied from usual linear to curvilinear contact. Full X, Y, and Z operation is characterized by largely symmetrically curved sinoisoidal-like motion.
Inventors
- 👤 Don A. Fahrner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:09
CPC Classifications
B; B60; B60B; B60B9/00; B60B9/26; B60B19/00; B60C; B60C27/00; B60C27/02; B60C27/04; B60T; B60T8/00; B60T8/32; B60T8/3205; B60B2900/00; B60B2900/10; B60B2900/121; B60B2900/1212; B60G; B60G2204/00; B60G2204/40; B60G2204/416; B60G2206/00; B60G2206/01; B60G2206/50; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/86; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
106 words
A traction enhancing wheel and support assembly comprising: a wheel, a wheel support, a coupling means between said wheel and said wheel support for allowing movement of said wheel relative to said support in the transverse horizontal and vertical planes, a first actuator connected between said wheel and said wheel support for controlling movement of said wheel is said transverse horizontal plane, a second actuator connected between said wheel and said wheel support for controlling movement of said wheel in said transverse vertical plane, and control means adapted to move each of said actuators to allow said wheel to move along a predetermined path of travel.
Claim 2
Dependent Claim
106 words
A traction enhancing wheel and support assembly comprising: a wheel, a wheel support, a coupling means between said wheel and said wheel support for allowing movement of said wheel relative to said support in the transverse horizontal and vertical planes, a first actuator connected between said wheel and said wheel support for controlling movement of said wheel is said transverse horizontal plane, a second actuator connected between said wheel and said wheel support for controlling movement of said wheel in said transverse vertical plane, and control means adapted to move each of said actuators to allow said wheel to move along a predetermined path of travel.
Claim 3
Dependent Claim
27 words
A wheel as in claim 1 wherein said control means further comprising interfunctioning circuits to process brake, throttle, steering and accelerometer parameters to radius said contacting surface.
Claim 4
Dependent Claim
23 words
A wheel as in claim 2 in which at least one of the predetermined parameter values can be selectively varied by the operator.
Claim 5
Dependent Claim
40 words
A wheel as in claim 1 having the rotating mass of the wheel connected by actuating means to the non-rotating part of the wheel assembly from which the actuation is transmitted from a source of power to the rotating mass.
Claim 6
Dependent Claim
27 words
A wheel as in claim 1 in which the non-rotating part of the assembly which carries the rotating part is a part of an unsprung suspension system.
Claim 7
Dependent Claim
56 words
A wheel as in claim 5 in which the non-rotating part of the assembly which supports and actuates the rotating part is a part of a vehicle suspension system of which the wheel assembly is unsprung and which further comprises an input member operatively connected to a source of power and coupled to an output member.
Claim 8
Dependent Claim
27 words
A wheel as in claim 1 in which the input member driving the coupling is ripidly journalled and is in a fixed angular relationship to the carrier.
Claim 9
Dependent Claim
34 words
A wheel as in claim 7 in which the non-rotating part of the assembly which supports and actuates the rotating part is supportably attached to the vehicle of which the wheel is a part.
Claim 10
Dependent Claim
61 words
A wheel as in claim 1 in which there is at least one actuator for each of X and Y actuations, said actuators being separately and jointly actuable operatively connecting rotating and non-rotating parts of wheels for linear, linear and curvilinear, linear and curvilinear and sinoisoidal, and linear and curvilinear and sinoisoisdal with side movement in substantially forward and reverse directions.
Claim 11
Dependent Claim
28 words
A wheel as in claim 1 that is journalled for sideways actuation and movement of the effective point of usual wheel rotation in spaced relation to the vehicle.
Claim 12
Dependent Claim
28 words
A wheel as in claim 1 having both journalling for sideways actuation and a curved bearing surface which coperatively allow controlled amounts of X, Y and Z movement.
Claim 13
Dependent Claim
29 words
A wheel as in claim 1 in which a second coupling is operatively connected between a source of power and said coupling on which the contacting surface is actuated.
Claim 14
Dependent Claim
17 words
A wheel as in claim 12 in which said second coupling is of the constant velocity type.
Claim 15
Dependent Claim
12 words
A wheel as in claim 1 further comprising a resilient contacting surface.
Claim 16
Dependent Claim
83 words
A wheel as in claim 14 further comprising said surface being coupled for rotation and being: integral on said wheel and, having a shaped body with a variable contacting surface conjoined on the resilient shaped body with contacting side surfaces, and coupled for rotation and having an input member connected for rotation driven by a source of power and which is coupled to an output member so that the wheel is radiusable for movement produced by combinations of X, Y and Z actuation.
Claim 17
Dependent Claim
41 words
A wheel as in claim 15 in which the shaped body with resilient contacting side surfaces can flex and vary contacting area according to relative support of walls which is a function of amount of radiusing of wheel and internal pressure.
Claim 18
Dependent Claim
23 words
A wheel as in claim 1 in the coupling has a curved bearing surface on which the plane of rotation can be varied.
Claim 19
Dependent Claim
16 words
A wheel as in claim 17 in which the coupling is of the Constant Velocity type.
Claim 20
Dependent Claim
14 words
A wheel as in claim 18 in which the coupling is operative with lubricant.
Claim 21
Dependent Claim
37 words
A wheel as in claim 1 wherein the actuating means radiusing the rotating mass of the wheel from the non-rotating part of the assembly allows the multi-directional freedom of motion equivalent to that of a ball joint.
Claim 22
Dependent Claim
32 words
A wheel as in claim 1 having actuators linked to the wheel which actuate the wheel and by being linked provide at least some of the strength usually provided by control arms.
Claim 23
Dependent Claim
31 words
A wheel as in claim 1 in which the wheel is one of a set in which the wheels are radiusable for differential action according to arcs of respective turning circles.
Claim 24
Dependent Claim
19 words
A wheel as in claim 1 in which actuating means consist of a system having electric and hydraulic elements.
Claim 25
Dependent Claim
13 words
A wheel as in claim 1 in which actuating means are electrically powered.
Claim 26
Dependent Claim
12 words
A wheel as in claim 1 in which actuating means are hydraulic.
Claim 27
Dependent Claim
14 words
A wheel as in claim 25 in which hydraulic actuating means include an accumulator.
Claim 28
Dependent Claim
31 words
A wheel as in claim 1 comprising means in the hub adapted to receive a traction enhancer and having means on the contacting and side surfaces to receivably secure traction elements.
Claim 29
Dependent Claim
63 words
A wheel as in claim 27 in which the traction enhancer has traction elements which: rotate on the same axis as the wheel, extend over part of the contacting surface, are preferably flexible to conform to the contacting and side surfaces, are largely non-flexible against the force of traction, and are preferably pivoted to move with the flexing of the resilient contacting surface.
Claim 30
Dependent Claim
65 words
Wheels as in claim 28 which further comprises depressions to hold and contain in the augmented contact part of the surface a part of the cross over elements of a traction aid with cross over traction elements which are fitted over the outer contacting side surface and also which can, the length of cross over elements permitting, be fitted over the inner contacting side surface.
Claim 31
Dependent Claim
26 words
A wheel as in claim 29 in which traction elements are shaped complementary to vanes of wheels so that vanes and traction elements cooperatively increase traction.
Claim 32
Dependent Claim
15 words
A wheel as in claim 1 having vanes for traction in fluids and semi-solid material.
Claim 33
Dependent Claim
34 words
A wheel as in claim 31 in which vanes have curved surfaces and are spaced relative to the hub and to each other and which allow cooperative fitting of traction elements for enhanced traction.
Claim 34
Dependent Claim
41 words
A wheel as in claim 32 in which vanes extend radially outwards from the hub and in which at least some of the raised traction segments on the contacting and side surfaces are correspondingly contiguous with vanes for effective force application.
Claim 35
Dependent Claim
21 words
A wheel as in claim 31 in which vanes are structurally integral with the hub and outer part of the wheel.
Claim 36
Dependent Claim
22 words
A wheel as in claim 31 in which vanes are of a material similiar in durability to that of the contacting surface.
Claim 37
Dependent Claim
61 words
A plurality of wheels as in claim 1 in system connection capable of changing traction and track by varying the usual axis and axes of rotation to produce the following motions: linear, linear and curvilinear, linear and curvilinear with wheels in a set laterally variable inwards, linear and curvilinear and sinoisoidal, linear and curvilinear and sinoisoidal and sinoisoidal with side movement
Claim 38
Dependent Claim
18 words
Wheels as in claim 36 in which the contacting surface is asymmetrical so that effective radius is variable.
Claim 39
Dependent Claim
11 words
Wheels as in claim 36 having a generally symmetrical contacting surface.
Claim 40
Dependent Claim
21 words
Wheels as in claim 36 further comprising resilient tires on wheels coupled operatively to a source of of power for rotation.
Claim 41
Dependent Claim
30 words
Wheels as in claim 39 in which resilient tires have a shaped form having a pair of contacting side surfaces on the shaped body conjoined with a variable contacting surface.
Claim 42
Dependent Claim
43 words
Wheels as in claim 36 in which the wheels have means connecting wheels of sets and a plurality of sets to a steering means so that the wheels can be steered while wheels are being actuated for any of the types of motion.
Claim 43
Dependent Claim
38 words
A wheel system as in claim 36 in which the plurality of wheels is an even number of wheels with the wheels on each side of the vehicle being radiusable proportionate to the turning arcs of the wheels.
Claim 44
Dependent Claim
8 words
Wheels as in claim 42 which are steerable.
Claim 45
Dependent Claim
43 words
Wheels as in claim 42 having wheels joined for drive in a set and having the actuating means radius the wheels for differential action rather than having the friction of the traction surface reactive in a differential and then transmitted to the wheels.
Claim 46
Dependent Claim
30 words
Wheels as in claim 36 in which the input member of the coupling is operatively connected to a central brake and being of the non-driven types is free to rotate.
Claim 47
Dependent Claim
24 words
Wheels as in claim 36 having input numbers transmitting braking action from a brake operative on vehicle drive elements which drive said input numbers.
Claim 48
Dependent Claim
42 words
A wheel as in claim 36 in which some of the contacting surface is intrusive in non-firm surfaces and which has traction segments on the contacting surface at least some of which are annularly angled to increase effectiveness of applied side force.
Claim 49
Dependent Claim
23 words
A wheel as in claim 36 with a contacting surface configured with bands of different composition and coefficients of friction and grip pattern.
Claim 50
Dependent Claim
34 words
A wheel as in claim 48 in which at least one of the bands has abrasive elements such as studs set in that part of the contacting surface used for more than minumum traction.
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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) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |