Electromagnetic shielding seal for rotary/reciprocating shaft
US5134244A · kind A · utility
81Cited by
12References
29Claims
0Family size
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Inventor
Key dates
| Filing date | Apr 27, 1989 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Apr 27, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic shield for a rotary/reciprocating shaft includes a garter-type resilient coil spring blocking the propagation of electromagnetic waves therepast with the coil spring including a plurality of individual coils for causing a blockage of electromagnetic waves therepast independent of the compression of the coil spring within a range of deflection of the individual coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.