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US 12,467,226 B2Granted
Adapter board having a tool bit attachment portion
AssigneeCaterpillar Inc.
InventorsDavid Bruno Parzynski, Jr., Thomas Marshall Congdon
Life of this patent
Estimating the term…
Abstract
A tapered bushing includes a conical inner surface defining a conical axis, and a radial direction. The tapered bushing further includes an outer surface of revolution, and defines a minimum radial wall thickness that ranges from 3.0 mm to 15.0 mm measured from the conical inner surface to the outer surface of revolution. Also, the conical inner surface defines a draft angle that ranges from 2.0 degrees to 30.0 degrees.
Claims14
A blade assembly comprising:
- an adapter board including
- an upper moldboard interfacing portion include a rear surface, a front surface, and a series of thru-apertures extending from the front surface to the rear surface;
- and
- a lower tool bit attachment portion, terminating in a lower adapter board free end with a bottom surface, and including a top surface disposed adjacent the rear surface of the upper moldboard interfacing portion, also defining a series of thru-holes extending from the top surface to the bottom surface, each thru-hole of the series of thru-holes being in communication with each of the series of thru-apertures;
- wherein the adapter board defines a lateral direction, a vertical direction that is perpendicular to the lateral direction, and a horizontal direction that is perpendicular to the vertical direction, and the lateral direction, each of the series thru-holes defines a thru-hole diameter, the lower tool bit attachment portion defines a lower horizontal thickness, and a ratio of the lower horizontal thickness to the thru-hole diameter ranges from 1.25 to 1.75.
2 more elements
An adapter board comprising:
- an upper moldboard interfacing portion include a rear surface, a front surface, and a series of thru-apertures extending from the front surface to the rear surface;
- and
- a lower tool bit attachment portion, terminating in a lower adapter board free end with a bottom surface, and including a top surface disposed adjacent the rear surface of the upper moldboard interfacing portion, also defining a series of thru-holes extending from the top surface to the bottom surface, each thru-hole of the series of thru-holes being in communication with each of the series of thru-apertures;
- wherein the adapter board defines a lateral direction, a vertical direction that is perpendicular to the lateral direction, and a horizontal direction that is perpendicular to the vertical direction, and the lateral direction, each of the series of thru-holes defines a thru-hole diameter, the lower tool bit attachment portion defines a lower horizontal thickness, and each thru-hole of the series of thru-holes is disposed horizontally partially underneath the upper moldboard interfacing portion.
1 more element
Dependencies are inferred from the claim text.