Mineral bits and mounts
AssigneeCarriere Industrial Supply Limited
InventorOswald D. Zaayman
Life of this patent
Estimating the term…
Abstract
Mineral bits (10, 100) and associated mounts (30, 116, 200) for use during excavation and mining operations are disclosed. An exemplary bit (10) has a front region (12) and an opposite rear region (14) and comprises a head portion (16) and a mounting portion (18) secured to the head portion (16). The mounting portion (18) can be configured to be releasably retained by a mount (30). A rounded transition (22) disposed in the front region (12) of the bit between the head portion (16) and the mounting portion (18) provides a clearance (C) between the head portion (16) and the mount (16). Mineral bits (10, 100) disclosed can be inserted into and withdrawn from mounts (30, 116, 200) by linear and/or rotational movement.
Claims12
A mineral bit for use during excavation and mining operations, the bit having a front region and an opposite rear region, the bit comprising:
- a head portion;
- a mounting portion secured to the head portion and configured to be releasably retained by a mount;
- a rear rounded transition disposed in the rear region of the bit between the head portion and the mounting portion, wherein the rear rounded transition has a radius of at least 12.5 percent of a front-to-rear length of the mounting portion;
- a front rounded transition disposed in the front region of the bit between the head portion and the mounting portion and configured to provide a clearance between the head portion and the mount when the mounting portion is releasably retained by the mount;
- and
- a rear shoulder surface disposed on the head portion in the rear region of the bit and configured to interface with the mount when the mounting portion is releasably retained by the mount,
- wherein the mounting portion is configured for insertion into the mount by relative rotational movement between the bit and the mount.
An apparatus for use during excavation and mining operations, the apparatus comprising:
- a mount having a receptacle;
- and
- a mineral bit having a front region and an opposite rear region, the mineral bit comprising:
- a head portion;
- a mounting portion secured to the head portion, at least part of the mounting portion being configured to be releasably retained in the receptacle of the mount;
- a rear rounded transition disposed in the rear region of the bit between the head portion and the mounting portion, wherein the rear rounded transition has a radius of at least 12.5 percent of a front-to-rear length of the mounting portion;
- a front rounded transition disposed in the front region of the bit between the head portion and the mounting portion and configured to provide a clearance between the head portion of the bit and the mount when the mounting portion is releasably retained by the mount;
- and
- a rear shoulder surface disposed on the head portion in the rear region of the bit and configured to interface with the mount when the mounting portion is releasably retained by the mount
- wherein the mounting portion is configured for insertion into the mount by relative rotational movement between the bit and the mount.
The apparatus as defined in claim7, wherein the mount is configured to interface with the rear rounded transition.
Dependencies are inferred from the claim text.