Inventor

Alfred Schraut

Inventor

Waigolshausen, DE

Overview

1986–2005

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F16Dprimary

F16DCouplings for transmitting rotation54%

F16FSprings46%

PatentTitleYear

6,918,479'Diaphragm spring for a friction clutch'2005 6,877,596'Diaphragm spring for a friction clutch'2005 6,564,920'Driver disk for a clutch plate'2003 6,165,074'Torsional vibration damper'2000 6,095,308'Clutch plate for motor vehicle clutches'2000 5,419,422'Driver plate for a clutch plate of a motor vehicle friction clutch'1995 4,941,558'Clutch disc'1990 4,810,231'Torsional vibration damper having springs with progressive characteristics'1989 4,782,718'Fly-wheel unit for an internal-combustion engine'1988 4,751,990'Multi-disc clutch unit, particularly for heavy-duty motor vehicles'1988 4,727,971'Pressure plate unit for a friction clutch'1988 4,651,857'Clutch disk unit for a motor vehicle clutch'1987 4,591,040'Clutch disc for a motor vehicle friction clutch'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1995Patents assigned to FICHTEL & SACHS AG (8)· patent assignee history

1986–2005Based in Waigolshausen, DE· patent location history

2000–2003Patents assigned to MANNESMANN SACHS AG (3)· patent assignee history

2005Patents assigned to ZF SACHS AG (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FICHTEL & SACHS AG	8	1986–1995
MANNESMANN SACHS AG	3	2000–2003
ZF SACHS AG	2	2005

Locations

Location	Patents	Span
Waigolshausen, DE	13	1986–2005