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B23B 31/38

With overload clutches

Official title: with overload clutches {(B23B31/086 takes precedence)}

B23B31/38 (With overload clutches) appears on 14 US grants and 3 published applications in this corpus.

Search patents in B23B

Granted patents: 14
Published applications: 3
Assignees: 15
Inventors: 20
Latest grant: 17 Mar 2026

Filings by year

B23B 31/38: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	1	0
1977	1	0
1978	1	0
1979	0	0
1980	0	0
1981	2	0
1982	1	0
1983	0	0
1984	0	0
1985	0	0
1986	1	0
1987	2	0
1988	1	0
1989	1	0
1990	0	0
1991	0	0
1992	0	0
1993	0	0
1994	0	0
1995	0	0
1996	0	0
1997	0	0
1998	0	0
1999	0	0
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	0	0
2008	0	0
2009	0	0
2010	0	1
2011	0	0
2012	0	0
2013	1	1
2014	0	0
2015	1	0
2016	0	0
2017	0	0
2018	0	0
2019	0	0
2020	0	0
2021	0	0
2022	0	0
2023	0	0
2024	0	1
2025	0	0
2026	1	0

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Workpiece holder and machining apparatus17 Mar 2026US 12,576,450 B2Nissin Fulfil Co., Ltd.
Tool holder11 Aug 2015US 9,101,986 B2Hon Hai Precision Industry Co., Ltd.
Transmission system6 Aug 2013US 8,500,586 B2G.R.G. Patents Ltd.
Quick change adapter with a torque limiter for a tapping chuck29 Aug 1989US 4,861,201 ASociete Francaise D'Etudes et de Realisation D'Outillage
Change head for a tool change apparatus23 Feb 1988US 4,726,111 AKomet Stahlhalter und Werkzeugfabrick Robert Breuning GmbH

Most cited

By later US patents