Tamper-resistant brake actuator
US5193432A · kind A · utility
24Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1992 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Apr 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7062
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air-operated combination diaphragm spring brake has a tamper-resistant clamp provided between a head (46) and a spring side of a flange case (18) which together form a spring chamber (16) housing a power spring (72). The head (46) has an annular rim (70), and the flange case has an annular flange (74) with a diaphragm (48) sandwiched therebetween in an interface (76). An annular retaining member (78) has a lip (86) which tightly captures a step (80) on the annular rim as the annular retaining member (78) is drawn over the interface (76) to form the tamper-resistant clamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.