Sealing structure on a mechanism for advancing a rotating cylindrical member
AssigneeSpartan Tool Div. of Pettibone Corp.
InventorRoy W. Salecker
Life of this patent
Estimating the term…
Abstract
A mechanism for advancing a rotating cylindrical member, which mechanism includes a frame having an opening with a first axis to accept a cylindrical member extending therethrough in a first line, an advancing roller for engagement with a cylindrical member extending through the frame opening, first structure for mounting the advancing roller for movement relative to the frame with the first structure including a mounting block on the frame having a passage and a carrier for the advancing roller that is movable guidingly in the mounting block passage in a path in first and second opposite directions, and sealing structure cooperating between the carrier and the mounting block for blocking migration of foreign matter into the mounting block passage.
Claims20
A mechanism for advancing a rotating cylindrical member, said advancing mechanism comprising:
- a frame having an opening to accept a cylindrical member extending therethrough in a first line, said opening having a first axis;
- an advancing roller for engagement with a cylindrical member extending through the frame opening;
- first means for mounting the advancing roller for movement relative to the frame,
- said first means including a mounting block on the frame having a passage and a carrier for the advancing roller that is movable guidingly in the mounting block passage selectively in first and second opposite directions;
- and
- sealing means cooperating between the carrier and the mounting block for blocking migration of foreign matter into the mounting block passage.
An advancing roller subassembly for a mechanism for advancing a rotating cylindrical member, said advancing roller subassembly comprising:
- a carrier having a central axis and an outer surface to act against a complementary surface to thereby guide movement of the carrier in a predetermined path relative to a complementary surface;
- a roller;
- means for mounting the roller to the carrier for rotational movement of the roller relative to the carrier about an axis that is transverse to the central axis;
- and
- sealing means on the outer surface of the carrier and adapted to act between the outer surface of the carrier and a complementary surface to block migration of foreign matter between the outer surface of the carrier and a complementary surface.
Dependencies are inferred from the claim text.