Invention Grant
- Patent Title: Pick, in particular a round shaft pick
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Application No.: US16288529Application Date: 2019-02-28
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Publication No.: US10662770B2Publication Date: 2020-05-26
- Inventor: Karl Kammerer , Heiko Friederichs
- Applicant: Betek GmbH & Co. KG
- Applicant Address: DE Aichhalden
- Assignee: Betek GmbH & Co. KG
- Current Assignee: Betek GmbH & Co. KG
- Current Assignee Address: DE Aichhalden
- Agency: Burr & Brown, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@645877bc
- Main IPC: E21C35/19
- IPC: E21C35/19 ; E21C35/197

Abstract:
The present invention relates to a pick, in particular, a round shaft pick, having a pick head and a pick shaft, having a support element which has a centering lug on the underside thereof, wherein the centering lug has a centering surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the present invention is disposed in the transition region from the centering surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear.
Public/Granted literature
- US20190195069A1 PICK, IN PARTICULAR A ROUND SHAFT PICK Public/Granted day:2019-06-27
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