Terry Runk Phones & Addresses
-
1033 Gilbert Ct, Stillwater, MN 55082 (651) 351-2186 (651) 430-1480 (651) 439-2206
-
Kissimmee, FL
Business Records
Name / Title
Company / Classification
Phones & Addresses
Owner
Runk- N -Sons Inc
Ret Sporting Goods/Bicycles
Ret Sporting Goods/Bicycles
Stillwater, MN 55082
Publications
Us Patents
Knuckle Joint Spearhead Core Drilling Apparatus
View pageUS Patent:
42817250, Aug 4, 1981
Filed:
Sep 20, 1979
Appl. No.:
6/077350
Inventors:
Terry M. Runk - Stillwater MN
Assignee:
Longyear Company - Minneapolis MN
International Classification:
E21B 2502
US Classification:
175246
Abstract:
Core drilling apparatus that includes a wire line core barrel inner tube assembly movable through a drill stem to be seated in a latched core taking position adjacent the drill stem core bit and an overshot assembly coupled to the inner tube assembly for lowering and/or withdrawing the inner tube assembly in the drill stem. The inner tube assembly includes an overshot coupling assembly having a base member extended into the latch release tube for limited movement relative thereto, a spearpoint assembly connected to the base member for pivotal movement through an angle of about 180. degree. about a transverse pivot axis, and a detent plunger resiliently mounted by the subassembly to extend into a base recess when the central axes of the base and coupling members are nearly aligned to releasably retain said members in relative positions that their axes are aligned, and to abut against a base tapered surface when the subassembly central axis is at a substantial angle relative the base central axis.