Trolley wheel
AssigneeVGK, Inc.
InventorsVerlan Van Dyke, Keith Korver, Perry Klein
Life of this patent
Estimating the term…
Abstract
An improved trolley for use on a track. The improved trolley is of a sandwich construction having a wear resistant interior and a pair of metal end plates. The wear resistant material is preferably plastic or other material designed to avoid damaging a track along which the trolley rides. The end plates are preferably stainless steel and of a diameter greater than the diameter of the center wheel to prevent the trolley from becoming dislodged from a track. By providing a sandwich of long wearing and non brittle materials, the longevity of the trolley is increased and corrosion concerns associated with prior art devices is substantially alleviated.
Claims11
An improved wheel assembly comprising:
- (a) a center wheel having a first hole and a first diameter, wherein said center wheel is constructed of an abrasion resistant material;
- (b) a first end plate having a second hole and a second diameter, wherein said first end plate is constructed of a material less brittle than said abrasion resistant material;
- (c) a second end plate having a third hole and a third diameter;
- (d) wherein said second end plate is constructed of a less brittle material than said abrasion resistant material;
- (e) wherein said second diameter and said third diameter are greater than said first diameter;
- (f) wherein said first hole and said second hole are substantially aligned;
- (g) an axle extending through said first hole, said second hole, and said third hole;
- and
- (h) means securing said first end plate and second end plate to said center wheel.
An improved trolley for use on a track, said trolley comprising:
- (a) a disk having a first face, a second face, a hole and a diameter;
- (b) wherein said disk is constructed of an abrasion resistant material;
- (c) a first boss having a hole and a diameter;
- (d) a second boss having a hole and a diameter;
- (e) wherein said first boss is secured to said first face of said disk in a manner which substantially aligns said hole of said disk with said hole of said first boss;
- (f) wherein said second boss is secured to said second face of said disk in a manner which substantially aligns said hole of said disk with said hole of said second boss;
- (g) a first end plate having a hole and a diameter;
- (h) wherein said diameter of said first plate is greater than said diameter of said disk;
- (i) wherein said first boss is secured in said hole of first end plate;
- (j) a second end plate having a hole and a diameter;
- (k) wherein said diameter of said second end plate is greater than said diameter of said disk;
- (l) wherein said second boss is secured in said hole of said second end plate;
- (m) wherein said first end plate and second end plate are constructed of a material less brittle than said abrasion resistant material;
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- (n) an axle positioned through said hole of said first end plate, said hole of said disk, said hole of first boss, said hole of said second boss, and said hole of said second end plate.
Dependencies are inferred from the claim text.