 Temperature indicator |
| The temperature indicator shown in FIGS. 1 and 2 comprises a circular piece of transparent foil 10.... |
|
| Toilet training system |
| It is an object of the present invention to provide a new and useful potty training system ... |
|
| Urine shield for toilets |
| OF AN EMBODIMENT OF THE INVENTION Referring to the drawings FIGS. 1 through 5, a conventional ... |
|
| Label or wrapper with premium |
| The present invention relates to the addition of value to a consumer package, or portion thereof T... |
|
| Power supply apparatus for slide door in motor vehicle |
| This invention has been accomplished under the above circumstance. An object of this invention is ... |
|
| Multiple beam playground apparatus |
| In general, the apparatus of the invention comprises at least three interconnected pivotally ... |
|
| Elastic action game device |
| OF THE PREFERRED EMBODIMENT FIG. 1 illustrates the elastic band 10 of the invention. The band is ... |
|
| Educational balance beam |
| In accordance with this invention, there is provided an educational balance beam system which is ... |
|
| Multiple pathway play apparatus for climbing and crawling |
| OF THE INVENTION In accordance with the present invention, a play apparatus for climbing and ... |
|
| Gymnastic balance beam with articulated beam portions |
| The invention involves a gymnastic apparatus, e.g., a balance beam, of the type having an elongate ... |
|
|
Device apt to permit skiing on snowless ground
| Details |
Inventors: Volpato, Alberto;
Assignee:
Primary Examiner: Love; John J.
Assistant Examiner: Lamby; Richard
Attorney, Agent or Firm: Browdy and Neimark
A device apt to permit skiing practice on snowless ground is described. The device in question makes possible a complete efficient training, being suitable to simulate all possible operating conditions of a ski. According to a remarkable feature of the device of the invention, it allows to run across curves having any bending radius if it is "driven" by the user acting on the device in the same manner as on a normal ski. The device comprises two sets of sliding wheels, the wheels of each set being connected by a cross element. Said cross elements are pivoted independently from each other to an essentially central shaped plate forming the means to which the user's foot is secured. Between the plate and cross elements elastic means are interposed whose elongation degree and the resulting angle .alpha. formed at rest between said plate and cross element are limited by an adjustable stop means. |
|
DETAILED DESCRIPTION I claim: 1.
Roller suitable to permit skiing practice on snowless ground comprising a front set and a rear set of sliding wheels, first and second connecting element of the wheels of said front and rear sets, respectively, the wheels being rotatably mounted on said respective first and second connecting elements, a central foot supporting element to which said first and second connecting elements are pivotably connected, first and second elastic means interposed, respectively, between said first and second connecting elements and the central foot supporting element, wherein said first and second connecting elements of the front and rear sets comprise, respectively, first and second essentially elongated rectilinear members on which said wheels of said front and rear set, respectively, are longitudinally mounted, a rearward end of said first connecting element facing a forward end of said second connecting element, the facing ends of said rectilinear members being pivotably connected to appendixes disposed rearward and forward, respectively, of said first and second elastic means, said appendixes extending downwardly from essentially the middle of the central foot supporting element, said front set of sliding wheels including at least one end sliding wheel disposed forward of said first elastic means, said rear set of sliding wheels including at least one end sliding wheel disposed rearward of said second elastic means.
2.
Roller according to claim 1, further comprising at least one center sliding wheel of each front and rear set of wheels disposed between the respective pivotable connections of said first and second connecting elements to said respective appendixes of the central foot supporting element and said respective first and second elastic means.
3.
Roller according to claim 1, wherein the central foot supporting element is a substantially inverted U-shaped plate having a length smaller than the length of the connecting elements.
4.
Roller according to claim 1, wherein between the pivoting point of said first and second connecting elements to said central foot supporting element and the area wherein said respective first and second elastic means are placed, no sliding wheel is provided, at least one sliding wheel being rotatably mounted on said appendixes
|
| Related patents |
|
|
Roller ski
Therefore, it is a primary objective of the present invention to provide a roller ski that simulates the balance and motion characteristics of conventional downhill snow ...
|
|
|
Soft boot binding for snow boards
OF THE PREFERRED EMBODIMENT Referring now to the drawings and initially to FIG. 1, there is shown for illustrative purposes a ski 10 with a skier standing thereon in ...
|
|
|
Grass ski roller boards
The purpose of the present invention is to resolve the problem areas so far encountered with grass ski boards by providing a grass ski roller board imparting the same ...
|
|
|
Instructional kit having storage/work tray and indicia bearing blocks
Having thus described my invention, what is claimed is: 1. An instructional kit comprised of: a) a rectangular box-like enclosure comprised of a tray member and a lid ...
|
|
|
Hazardous material leak training simulator
A general object of the present invention is to provide an apparatus for simulating hazardous material leaks for training emergency response personnel. Another object is ...
|
|
|
Method and apparatus for radar measurement of ball in play
It is an object of the invention to provide a radar tracking device for precise measurement of the position of an object with an accuracy of less than a tenth of an inch....
|
|
|
Training device for soccer
Briefly, the present invention comprises a training device for teaching a soccer player the correct location to bunt a soccer ball. The invention comprises multiple ...
|
|
|
Physical rehabilitation platform
The general aim of the present invention is to provide a new and improved physical rehabilitation platform which may be used by physical therapists and the like to help ...
|
|
|
Training device for archery
What is claimed is: 1. An archery training device for teaching an archer proper muscular control and body positioning, the training device comprising: a string arm ...
|
|
|
Digital thermometer and method of manufacture
Non-breakable digital thermometers are provided by a substantially continuous method of manufacture. A continuous sheet of an inert transparent base film is moved past a ...
|
|
|
Exercise Devices2 
