Pressure indicator for hydraulic hammer
US10094754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2015 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jan 10, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/161
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure indicator for a hydraulic hammer is provided. The pressure indicator includes a sleeve member configured to couple to an opening defined in a wall housing of an accumulator of the hydraulic hammer. The pressure indicator further includes a plunger slidably disposed within the sleeve member and movable between a first position and a second position with respect to the sleeve member. The plunger includes a first end disposed outside the wall housing of the accumulator. The plunger further includes a flange coupled to a second end. The pressure indicator further includes an elastic member inserted over the plunger and disposed between the wall housing of the accumulator and the flange. A position of the first end of the plunger with reference to an outer end of the sleeve member provides a visual indication of the pressure of the gas within the accumulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.