Anti-noise impact element
US4609054A · kind A · utility
4Cited by
11References
8Claims
0Family size
Inventors
Key dates
| Filing date | Sep 7, 1979 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | Sep 7, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D17/24
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An impact element having the effect of elongating the pulse of force in impact tools and devices for chipping, hammering and similar operations, consisting of an element (8) which, for generating the striking motion, is axially moveable as a whole and comprises a driving mass (16) intended to be actuated by a propelling force, and a striking mass (17) located in front thereof relative to the direction of striking, which masses possess a limited freedom of axial movement with respect to each other in that they are coupled together by a stiff spring arrangement, e.g. cup washers (15), extremely hard plastics or gas cushions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.