Inventor
Siegfried Sigott
Inventor
Zeltweg, AT
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Dprimary
E21DShafts45%
E21CMining or quarrying14%
Y10TTechnical subjects covered by former us classification9%
B01DSeparation5%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors5%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels5%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges5%
F16KValves5%
G01DMeasuring not specially adapted for a specific variable5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
4,776,445'Device for transferring the cup heap of debris onto a drift conveying means'19884,404,893'Hydraulic mine prop'19834,263,005'Device for provisionally consolidating a gallery and suitable consolidating frame'19814,236,627'Cutting machine'19804,152,126'Equipment for removing dust particles from an air stream'19794,111,488'Method for cutting minerals and cutting machine'19784,111,227'Pressure relief valve for hydraulic mine supporting elements'19784,075,856'Device for consecutively supporting a drift'19784,057,260'Device for connecting the bits with the cutting head of a drift advancing machine or the like'19774,020,640'Shield structure'19773,972,429'Dividing cutting machine'19763,958,832'Drum mining head with cutter pattern'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1983Patents assigned to VOEST AG (10)· patent assignee history
1976–1983Based in Zeltweg, AT· patent location history
1977Patents assigned to VOEST ALPINE MONTAN AG (1)· patent assignee history
1988Patents assigned to VOEST ALPINE AG (1)· patent assignee history
1988Based in Ferlach, AT· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VOEST AG | 10 | 1976–1983 |
| VOEST ALPINE AG | 1 | 1988 |
| VOEST ALPINE MONTAN AG | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Zeltweg, AT | 11 | 1976–1983 |
| Ferlach, AT | 1 | 1988 |