EP 3650633 A1 20200513 - BIT HOLDER WITH SHORTENED NOSE PORTION
Title (en)
BIT HOLDER WITH SHORTENED NOSE PORTION
Title (de)
BOHRSPITZENHALTER MIT VERKÜRZTEM NASENABSCHNITT
Title (fr)
SUPPORT DE TRÉPAN AYANT UNE PORTION DE POINTE RACCOURCIE
Publication
Application
Priority
US 201816181591 A 20181106
Abstract (en)
A bit holder that includes a front portion and a shank axially depending from the front portion. The front portion having an axial length that is less than the axial length of the shank. A combination bit holder and base block that includes the bit holder with the front portion having an axial length that is less than the axial length of the shank. The base block including a mounting portion and a device receiving portion, the device receiving portion including a length that is the same or less than a length of the mounting portion. The base block having a device receiving portion that includes a length shorter than a length of the mounting portion adapted to provide increased access to the rear of the bit assembly allowing the base blocks to be mounted closer to each other for micro-milling operations. Shortened bit holder shanks are reconfigured from prior art to provide increased holding power between the bit holder shank and base block bore.
IPC 8 full level
E21C 35/18 (2006.01); E21C 35/19 (2006.01); E21C 35/197 (2006.01)
CPC (source: CN EP)
E21B 10/00 (2013.01 - CN); E21B 10/55 (2013.01 - CN); E21B 12/00 (2013.01 - CN); E21B 17/03 (2013.01 - CN); E21B 19/10 (2013.01 - CN); E21C 35/19 (2013.01 - EP)
Citation (applicant)
- US 6371567 B1 20020416 - SOLLAMI PHILLIP A [US]
- US 6585326 B2 20030701 - SOLLAMI PHILLIP A [US]
- US 6739327 B2 20040525 - SOLLAMI PHILLIP A [US]
Citation (search report)
- [XI] US 2015028656 A1 20150129 - SOLLAMI PHILLIP [US]
- [A] EP 3214261 A1 20170906 - SOLLAMI CO [US]
- [A] US 2017089198 A1 20170330 - SOLLAMI PHILLIP [US]
- [A] US 2015240634 A1 20150827 - SOLLAMI PHILLIP [US]
- [A] US 2002074850 A1 20020620 - MONTGOMERY ROBERT H [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3650633 A1 20200513; CA 3041373 A1 20200506; CN 111140178 A 20200512; JP 2020076308 A 20200521
DOCDB simple family (application)
EP 19176209 A 20190523; CA 3041373 A 20190426; CN 201911077828 A 20191106; JP 2019194469 A 20191025