Abstract: An isolated lubrication system for a drill bit is disclosed. The system comprises a body having a cutting arm with a journal and a rotary cutter mounted on the journal. The system also comprises a reservoir in a body to contain a fluid lubricant that isolated from communication outside the body. The system also comprises multiple conduits in communication with the reservoir and with respect to each other. The multiple conduits facilitate lubrication between the journal and the rotary cutter, including the bearings, by means of a gravitational force and/or a centrifugal force acting of the fluid lubricant. Further, the system comprises a sealing system. The sealing system includes a sealing cap provided to the reservoir, a seal provided between the journal and the rotary cutter, and a stepped passageway provided in a clearance between the rotary cutter and a cutting arm of the body.

Abstract: A ring seal system is disclosed. The ring seal system may include a first ring assembly that includes a first sealing surface. The ring seal system may include a second ring assembly that includes a second sealing surface. The ring seal system may include a plate, between the first ring assembly and the second ring assembly, that includes a first contact surface and a second contact surface. The ring seal system may include a coating on the first contact surface and the second contact surface. The first contact surface may be mechanically connected to the first sealing surface to form a first seal with the first sealing surface. The second contact surface may be mechanically connected to the second sealing surface form a second seal with the second sealing surface.

Abstract: An isolated lubrication system for a drill bit is disclosed. The system comprises a body having a cutting arm with a journal and a rotary cutter mounted on the journal. The system also comprises a reservoir in a body to contain a fluid lubricant that isolated from communication outside the body. The system also comprises multiple conduits in communication with the reservoir and with respect to each other. The multiple conduits facilitate lubrication between the journal and the rotary cutter, including the bearings, by means of a gravitational force and/or a centrifugal force acting of the fluid lubricant. Further, the system comprises a sealing system. The sealing system includes a sealing cap provided to the reservoir, a seal provided between the journal and the rotary cutter, and a stepped passageway provided in a clearance between the rotary cutter and a cutting arm of the body.

Abstract: A multi-material track pad for a continuous track assembly is disclosed. The track pad may include a body with a ground-engaging surface, wherein the body is formed of a metal material with a first hardness; a roller-engaging surface, wherein the roller-engaging surface is formed of a ceramic material with a second hardness that is greater than the first hardness; and a sprocket-engaging surface formed of the ceramic material.

Abstract: A ring seal system is disclosed. The ring seal system may include a first ring assembly that includes a first sealing surface. The ring seal system may include a second ring assembly that includes a second sealing surface. The ring seal system may include a plate, between the first ring assembly and the second ring assembly, that includes a first contact surface and a second contact surface. The ring seal system may include a coating on the first contact surface and the second contact surface. The first contact surface may be mechanically connected to the first sealing surface to form a first seal with the first sealing surface. The second contact surface may be mechanically connected to the second sealing surface form a second seal with the second sealing surface.

Abstract: A multi-material track pad for a continuous track assembly is disclosed. The track pad may include a body with a ground-engaging surface, wherein the body is formed of a metal material with a first hardness; a roller-engaging surface, wherein the roller-engaging surface is formed of a ceramic material with a second hardness that is greater than the first hardness; and a sprocket-engaging surface formed of the ceramic material.

Abstract: An explosion isolation device for collecting dust discharged from a hopper into a dust collection drum that eliminates an airlock requirement to isolate the negative pressured dust collector from receiving air via a bottom aperture in the lower portion of the hopper, thereby preventing an explosion in the dust collector that exceeds the pressure rating of the device and dust collection drum. The explosion isolation device includes a spool member detachably secured to a drum cover having an aperture configured and dimensioned substantially similar to an aperture through the spool member. The drum cover is detachably secured to the dust collection drum via a drum cover clamp, which is secured to the spool member or alternatively to the drum cover such that the clamp is suspended beneath the drum cover when the dust collection drum is full and replaced by an empty drum.

Abstract: An explosion isolation device for collecting dust discharged from a hopper into a dust collection drum that eliminates an airlock requirement to isolate the negative pressured dust collector from receiving air via a bottom aperture in the lower portion of the hopper, thereby preventing an explosion in the dust collector that exceeds the pressure rating of the device and dust collection drum. The explosion isolation device includes a spool member detachably secured to a drum cover having an aperture configured and dimensioned substantially similar to an aperture through the spool member. The drum cover is detachably secured to the dust collection drum via a drum cover clamp, which is secured to the spool member or alternatively to the drum cover such that the clamp is suspended beneath the drum cover when the dust collection drum is full and replaced by an empty drum.

Abstract: An undercarriage assembly for a mobile machine includes a continuous track having a plurality of mated track links that can translate with respect to the machine. Each track link may include a shoe portion and a body portion. The body portion includes a plurality of projecting pin lugs each having a pin bore to receive a bin and link adjacent track links together. The pin lugs can include a pair of sprocket lugs for making rolling contact with a sprocket, a pair of roller lugs for making rolling contact with a plurality of rollers, and a side lug having a protruding shoulder to assist in aligning the plurality of rollers.

Abstract: A track joint assembly pivotally links together track links of a continuous track. To form the track joint assembly, the first track link may include a male lug projecting from an edge of the track link that can be received between first and second side lugs projecting from the second track link. A floating bushing may be disposed inside a lug bore of the male lug and is in lubricated contact with the male lug. To retain the lubricant, first and second seals are disposed at either side of the floating bushing. A pin is inserted through both the floating bushing and lug apertures disposed through the first and second side lugs respectively. The pin may be in dry contact with the floating bushing and is either in a clearance fit or transition fit so that it can rotated with respect to the floating bushing.

Abstract: An undercarriage assembly for a mobile machine includes a continuous track having a plurality of mated track links that can translate with respect to the machine. Each track link may include a shoe portion and a body portion. The body portion includes a plurality of projecting pin lugs each having a pin bore to receive a bin and link adjacent track links together. The pin lugs can include a pair of sprocket lugs for making rolling contact with a sprocket, a pair of roller lugs for making rolling contact with a plurality of rollers, and a side lug having a protruding shoulder to assist in aligning the plurality of rollers.

Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.

Abstract: A method for connecting a track shoe to a link is disclosed. The method may include joining the track shoe and the link using friction welding. A method for constructing a track assembly is also disclosed. The method may include utilizing friction welding to attach a plurality of links to a plurality of track shoes. A track assembly is also disclosed. The track assembly may include a link and a track shoe attached to the link via friction welding.

Abstract: A track pad is disclosed for use in a track system of a tracked machine. The track system includes a plurality of track guiding rollers having annular engagement surfaces. The track pad includes a pad body having a wear surface, and a rail surface opposite the wear surface adapted for complementary positioning with at least one track guiding roller. The rail surface includes a profile that is convex or concave. The profile is adapted to complement the at least one track guiding roller, which presents a profile that is the other of convex or concave.

Abstract: A track pad is disclosed for use in a track system of a tracked machine. The track system includes a plurality of track guiding rollers having annular engagement surfaces. The track pad includes a pad body having a wear surface, and a rail surface opposite the wear surface adapted for complementary positioning with at least one track guiding roller. The rail surface includes a profile that is convex or concave. The profile is adapted to complement the at least one track guiding roller, which presents a profile that is the other of convex or concave.

Abstract: The present invention provides methods of refolding mammalian glycosyltransferases that have been produced in bacterial cells, and methods to use such refolded glycosyltransferases, including glycosyltransferase mutants that have enhanced ability to be refolded. The invention also provides methods of refolding more than one glycosyltransferase in a single vessel, methods to use such refolded glycosyltransferases, and reaction mixtures comprising the refolded glycosyltransferases.

Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.

Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.

Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.

Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.