No/low skid device

Information

  • Patent Grant
  • 11260967
  • Patent Number
    11,260,967
  • Date Filed
    Monday, December 3, 2018
    6 years ago
  • Date Issued
    Tuesday, March 1, 2022
    2 years ago
  • Inventors
    • Davis; James Robert (Riverside, CA, US)
  • Examiners
    • Davis; Richard G
Abstract
An aircraft hubcap/wheel cover which uses ambient airflow (120 mph-175 mph) to rotate wheels on the landing gear of an aircraft accomplished by using slightly protruding slats, blades, scoops or other air capturing shapes, (once the landing gear has been lowered). These air capturing shapes are integrated as part of the hubcap/wheel cover during manufacture and are directly determined by ground speed applicable to that aircraft with the ultimate purpose being tire longevity. The wheel cover hubcap is a single piece design and has no moving parts.
Description
BACKGROUND OF THE DISCLOSURE
Field of the Invention

This invention relates specifically to larger commercial aircraft and the tire wear thereof. The reduction of pre-mature tire wear is the nucleus of this invention.


Description of the Related Art

Wheels of most aircraft are subjected instantaneous contact with the tarmac (runway) when landing. During this time, large billows of blue smoke from the skidding of tires is easily evident and prolific.


SUMMARY OF THE INVENTION

The specific problem of extreme tire wear during landing is addressed and can be rectified by instituting tire rotation at or near the ground speed of the aircraft involved. The result of this would be no/low skid, and/or an increase in tire longevity, and a goal of doubling the life of the tire, without avoiding safe tire parameters. The subsequent savings will be high.


The invention reduces tire skid/flat spots on aircraft when landing. By using ambient airflow when aircraft attempts to land, it initiates tire spin at or close to ground speed to reduce skidding.


Other features and aspects will be apparent from the following detailed description, the drawings, and the claims





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 shows embodiments of wheel spinning structures of the invention.



FIG. 2 shows an embodiment of a hub cap of the invention on an aircraft wheel.





Throughout the drawings and the detailed description, the same reference numerals refer to the same elements. The drawings may not be to scale, and the relative size, proportions, and depiction of elements in the drawings may be exaggerated for clarity, illustration, and convenience.


DETAILED DESCRIPTION

The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, products, and/or systems, described herein. However, various changes, modifications, and equivalents of the methods, products, and/or systems described herein will be apparent to an ordinary skilled artisan.


The invention addresses this with the use of a hub-cap using various air capturing shapes. These protrude from the wheel assembly and can include scoops, cups or slats, depending on RPM required and speed of aircraft when landing.


When the aircraft is about to land, wind speeds can reach 120-175 mph under the fuselage. At this point, the energy is captured by the captive design of the hub-cap and rotation of the wheel assembly starts in the direction desired. This use of energy in this fashion can be viewed when looking at a wind powered generator or an old fashioned wind-mill.


The hub-cap includes it being a circular shape and diameter corresponding to the diameter of the wheel and may be installed without any modification to the wheel.


An aircraft hubcap structure for attachment to an airplane wheel and tire assembly may have a circular configuration, and extend outwardly from said wheel with said wheel defining a plurality of bolt holes spaced from one another at or adjacent to said hubcap structure.


An embodiment of the invention includes:


1. A single pre-formed or cast hub cap;


2. protrusions/depressions to deflect airflow;


3. cast on to hub cap;


4. install hub cap on wheel.


Relationship Between the Components


Step 1 plastic, aluminum, steel, or fiber glass can be used as the material for the hub cap. Step 2 speed of aircraft during landing will determine the size and number of protrusion/depressions that are required to reduce the rate of spin needed to match as close as possible ground speed. This will eliminate and or reduce tire skid/wear. Witch would extend tire life reducing tire cost. Step 3 once the protrusions/depressions are determined, a single piece is created with no moving parts. Step 4 install hub caps on wheel.


By utilizing directed airflow, wheel spin is initiated to approximately landing speed at time of landing, eliminating or largely decreasing tire skid on runway.


Using machine dies and injection molding machines, there are no moving parts. First, it requires the inventive hub cap. Second, it requires airflow underneath the aircraft. Wind deflection shapes can be changed to many geometric possibilities to perform the same result. The invention is used by simple installation of the hub cap to wheel.



FIGS. 1A, 1B, and 1C show examples 1, 2, and 3, of various wheel spinning structures of the invention.



FIG. 2 shows hub cap 7 on an aircraft tire 4 and rim 5 along with wheel spinning structures 6.


While this disclosure includes specific examples, it will be apparent after an understanding of the disclosure of this application has been attained that various changes in form and details may be made in these examples without departing from the spirit and scope of the claims and their equivalents.

Claims
  • 1. A low skid device for a wheel for an aircraft comprising: a hub cap configured for attachment the aircraft wheel and tire assembly; andan air capturing structure comprising at least one of a scoop, a cup, and a slat wherein the air capturing structure extends from between about 30% to about 50% of the circumference of the hub cap; andthe air capturing structure comprises two ends, with an opening at one end, and a body comprising a curvilinear shape of gradually decreasing volume to a closed second end.
  • 2. The low skid device for a wheel for an aircraft of claim 1, wherein the number of air capturing structures on the hub cap is two.
  • 3. The low skid device for a wheel for an aircraft of claim 1, wherein the hub cap comprises plastic, aluminum, steel, or fiber glass.
CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 USC § 119(e) to U.S. Provisional Application No. 62/597,291 filed Dec. 11, 2017 the entire contents of which is herein incorporated by reference in its entirety.

US Referenced Citations (31)
Number Name Date Kind
1829500 Brown Oct 1931 A
2452633 Cautley Nov 1948 A
2464872 Koval Mar 1949 A
3529792 MacMahon Sep 1970 A
4040582 Krauss Aug 1977 A
4383665 Maclean May 1983 A
4385739 Soderberg May 1983 A
4491288 Sinclair Jan 1985 A
4615498 Ochiai Oct 1986 A
4732350 Lamont Mar 1988 A
5165624 Lewis, Jr Nov 1992 A
5213285 Stanko May 1993 A
5251848 Gannatal Oct 1993 A
5417387 Jennings May 1995 A
5746393 Gennaro May 1998 A
6032900 Smith Mar 2000 A
6086017 Al-Thani Jul 2000 A
6499691 Lyons Dec 2002 B1
6983911 Nordquist Jan 2006 B1
9174726 Ushiyama Nov 2015 B2
20040065771 Snyder Apr 2004 A1
20040123929 Han Jul 2004 A1
20130112809 Khal May 2013 A1
20130256452 Ushiyama Oct 2013 A1
20140048648 Karl Feb 2014 A1
20150021435 Abbasszadeh Jan 2015 A1
20160059955 Yoshida Mar 2016 A1
20160200424 Mabie Jul 2016 A1
20170129594 Essinger May 2017 A1
20170361925 Pao Dec 2017 A1
20180043999 Yoshida Feb 2018 A1
Foreign Referenced Citations (1)
Number Date Country
102013020547 Jun 2015 DE
Provisional Applications (1)
Number Date Country
62597291 Dec 2017 US