Brakes – Vehicle – Railway
Reexamination Certificate
2000-12-26
2001-09-18
Oberleitner, Robert J. (Department: 3613)
Brakes
Vehicle
Railway
C188S00400B
Reexamination Certificate
active
06290029
ABSTRACT:
BACKGROUND—FIELD OF INVENTION
This invention relates in general to wheel chocks, in particular for retainment of multi-size wheels of different type of vehicles having wheels which need to be held in a fixed position during the act of being transported on a trailer-bed, truck-bed, railroad car-bed or any other type of transporter or being held in a fixed position on any substructure surface such as a garage floor, parking lot surface or any similar surface.
BACKGROUND DESCRIPTION OF PRIOR ART
Prior art wheel chocks are designed to prevent a wheel of a vehicle from moving, once chocked, in a forward direction or in a backward direction. Prior art wheel chocks are not designed in a compact adjustment mode with the ability to adjust in the sidewise direction and in the forward-backward direction all in one complete unit as my invention is designed with this multiphase feature. Prior art is not capable of having the multi-size wheel adjustment and does not have the ability to adjust for different wheel base widths. My invention has all these above mentioned features. The difficulties with the prior art wheel chocks, have been when parties have tried to use the individual wheel chocks to retain the vehicle wheel in a fixed position it only can chock a vehicle wheel by relying on the friction of the supporting surface to hold the wheel chock from sliding when the pressure by the wheel is applied against the prior art wheel chock. My invention does not rely on the friction of the supporting surface but my compact adjustable wheel chock has wheel chocks that are fixed on a base plate which is fixed to the substructure surface thereby not allowing the movement of the retained vehicle wheel. Prior art wheel chocks can move when a quick pull, twist or push movement of the vehicle that is being transported, for example, in the bed of a pick-up truck. There has been many pick-up beds and trailer beds damaged by the vehicle being transported coming loose causing it to move forward smashing the rear window or to move backward bending the tail gate. Prior art wheel chocks usefulness is greatly limited in that they are designed for chocking the wheels of a vehicle that is not being transported but fixed to a surface relying on friction only. My invention has the ability to not only chock a wheel on a stationary surface such as a garage floor, parking lot or any similar surface but also chock vehicle wheels that are being transported in the bed of a pick-up truck, bed of a trailer, railroad car and any other similar mode of transportation of vehicles. My invention has a rigid base plate which the wheel chock is attached as well as the rigid base plate is also attached to the transporter surface making it impossible to move because of a quick pull, twist or push movement of the transporter. The utility of my invention has a serviceable and useful desired design which is to not allow the vehicle being transported to come loose causing damage to the transporter vehicle.
Another type wheel chock that has been employed is the type that has only a right front and a left front chock with an adjustable bar between them allowing adjustment to accommodate different width wheel bases but lacks the ability to fix the wheel chock to the transporter surface. This prior art has only the front or rear but not both wheel chock allowing the vehicle being chocked to move in the opposite direction from the wheel chock because of only chocking one surface of the vehicle wheel. My invention has both the front as well as the rear of the vehicle wheel chocked thereby not allowing the vehicle wheel to move in either direction.
Another type wheel chock has a front and rear chock with a handle to move the wheel chock into or out of position of the vehicle wheel being chocked. This prior art lacks the ability to attach to the supporting surface allowing the wheel chock to move if there is a quick pull, twist or push movement of the vehicle chocked wheel. Therefore, this prior art wheel chock is not like my invention lacking the ability to hold the wheel or wheels in a fixed position when a quick pull, twist or push movement is applied to the vehicle wheel being chocked.
Another type wheel chock has an ornamental design for a wheel chock. It lacks the ability to hold the vehicle wheel being chocked in both a forward or backward direction. Therefore, this prior art design is not like my invention which has the ability to hold a vehicle wheel in a fixed position not allowing the chocked wheel to move in either a forward or backward direction. Also, my invention holds the chocked wheel from moving in upward direction because of the strap that goes over the diameter of the chocked wheel. This strap is fixed by a mechanical means to both wheel chocks.
Another type wheel chock has an ornamental design for a wheel chock. It lacks the ability to hold the wheel being chocked in both the forward and backward direction. Therefore, this wheel chock is not like my invention which has the ability to hold a wheel in both the forward or backward direction.
Another type wheel chock storage device is for storing a wheel chock on an automobile bumper. Therefore, this invention is not a wheel chock for chocking wheels but is for storage only. Therefore, this invention is not like my invention which is designed to chock a wheel.
Another type wheel chock apparatus which has the ability to be collapsible but lacks the ability to hold a wheel being chocked in both directions and lacks the ability to be attached to the supporting surface. Therefore, this wheel chock is not like my invention which has the ability to hold a wheel in a fixed position keeping it from moving in a forward or a backward direction. Also, my invention is capable of being attached to the supporting surface.
Another type wheel chock has the ability to secure a vehicle wheel for temporarily encumbering the normal rotation of a chock wheel. This invention lacks the ability to hold the wheel being chocked in both forward or backward direction. Therefore, this invention is not like my invention which has the ability to hold the wheel being chocked in a fixed position thereby not allowing the chocked wheel to move in either the forward or backward direction.
Another type wheel chock has an ornamental design for a wheel chock. It lacks the ability to hold the wheel being chocked in both the forward and backward direction. Therefore, this wheel chock is not like my invention which has the ability to hold a wheel in both the forward or backward direction.
Another type wheel chock which has an exterior shell of polyethylene comprising a base, a back surface, two side surfaces and a ramp surface as the hypotenuse between the base and back surfaces. It has a core of rigid foam of a secondary material. This invention lacks the ability to hold the chocked wheel from moving in either a forward or a backward direction. Therefore, this invention is not like my invention which has the ability to prevent the chocked wheel from moving in either the forward or backward direction.
Another type wheel chock device consisting of two components, one plate member having a flange at the end and a second plate having overlapping flange engaging sides, which can be assembled to form an inverted V-shaped wheel chocking device for use when changing a vehicles tire, during vehicle maintenance or when parking a vehicle on a hill. Therefore, this invention is not able to be permanently attached to the supporting surface and can stop the chocked wheel from moving in one direction only. My invention stops the chocked wheel from moving in both the forward or backward directions. Also, my invention has the ability to be attached to the supporting surface.
Another type wheel chock comprising a pair of wedge shaped chocks having a flat bottom which is designed to hold to the wheel being chocked but lacks the ability to permanently be attached to the supporting surface. Therefore, this invention lacks the feature of my invention which has the ability to be permanently attached to the supporting surface.
Another ty
Gubler Tyler Wilson
Mitchell Kirkman Z.
Kramer Devon
Oberleitner Robert J.
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