Title:
PNEUMATIC HAMMER
Document Type and Number:
WIPO Patent Application WO/1991/010542
Kind Code:
A1
Abstract:
The hammer comprises bases (1, 2) between which is located a force casing (3) capable of axial movement. The casing (3) interacts with the bases (1, 2) through tie elements (4) with dampers (5). The bases (1, 2) are connected with the striker (7) by means of flexible diaphragms (8, 9). The striker (7) is provided with a central opening in which is mounted a valve (12).
Inventors:
LUGACHEV VITALY GRIGORIEVICH (SU)
SHARAVIN SERGEI VASILIEVICH (SU)
TISHKOV ANATOLY YAKOVLEVICH (SU)
KOSTYLEV ALEXANDR DMITRIEVICH (SU)
CHEPURNOI NIKOLAI PROKHOROVICH (SU)
SHARAVIN SERGEI VASILIEVICH (SU)
TISHKOV ANATOLY YAKOVLEVICH (SU)
KOSTYLEV ALEXANDR DMITRIEVICH (SU)
CHEPURNOI NIKOLAI PROKHOROVICH (SU)
Application Number:
PCT/SU1990/000016
Publication Date:
July 25, 1991
Filing Date:
January 18, 1990
Export Citation:
Assignee:
INST GORNOGO DELA SIBIRSKOGO O (SU)
PK KONTORA TRESTA VOSTOKBU (SU)
PK KONTORA TRESTA VOSTOKBU (SU)
International Classes:
B25D9/14; B25D17/24; (IPC1-7): B25D9/00; B25D17/11; B25D17/24
Foreign References:
| US1547774A | 1925-07-28 | |||
| US1902530A | 1933-03-21 | |||
| SU129593A1 | 1959-11-30 | |||
| SU919860A1 | 1982-04-15 | |||
| SU290114A1 | ||||
| DE2549551B2 | 1978-09-07 |
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