Snubber apparatus
US4054186A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1975 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Apr 10, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L3/202
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A snubber apparatus which is constructed to present a high resistance to acceleration of the end fittings with respect to each other such as might occur due to seismic motion. The snubber apparatus preferably comprises a device which converts linear to rotary motion such as a ball screw and ball nut assembly which drives an inertia mass through a brake set and which when rotating causes braking to occur to increase the resistance force on the ball screw and ball nut assembly thus translating rotational resistance to linear resistance. The snubber apparatus is useful in restraining power plant piping, etc., in locations where earthquakes would be expected to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.