Resonant stylus support
US4884334A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1986 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Feb 5, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53174
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Flexure means are provided for holding a tip member of an ultrasonically reciprocating element against lateral movement while freely permitting its longitudinal movement. The reciprocating element is held fixed at a nodal point distant from the tip member. The flexure means having a natural frequency substantially the same as the reciprocating element so as to resonate in concert therewith. In one embodiment, a flexible disc fixed around its periphery is centrally pierced to receive and engage the reciprocating element. In another embodiment, a plurality of elongated resonant supports are mounted at spaced radial positions on a fixture provided with a central opening through which the reciprocating element extends so that free ends of the resonant supports are directed at and engage the reciprocating element. In this embodiment, at least two of the resonant supports are adjustable toward and away from the longitudinal axis of the reciprocating element so as to properly position it. Also, at least one other of the resonant supports is biased into engagement with the reciprocating element thereby holidng the reciprocating element against the ends of the other resonant supports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.