US3857146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a quartz bar resonator
Assignee: SSIH Management Services SA
•
Filing: 1973-04-10
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Granted: 1974-12-31
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Expires: 1993-04-10
Abstract
Abstract A suspension of a quartz bar including forming at least a pair of spaced forked electrodes interconnected by a blank in a single metallic sheet, folding the electrodes with respect to the blank, supporting at least a part of each of the electrodes from a base plate, removing the blank, and suspending a quartz bar upon said electrodes. Spacer legs adapted to be used to properly position the electrodes on the base may also be formed in the sheet and subsequently removed.
Inventors
- 👤 J Engdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:17
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/0504; H03H9/0528; G; G04; G04F; G04F5/00; G04F5/04; G04F5/06; G04F5/063; H03H9/09; H03H9/10; H03H9/1007; H03H9/1014; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
A method of fabrication of a quartz bar resonator comprising the steps of forming at least a pair of spaced, forked electrodes interconnected by a blank in a single metallic sheet, folding said electrodes with respect to said blank, fixedly supporting at least a part of each of said electrodes from a base plate, removing said blank leaving said electrodes separately extending from said base plate, mounting a quartz bar at one end on one of said spaced electrodes and at the other end on another of said spaced electrodes, and connecting said quartz bar to said electrodes.
Claim 2
Independent Claim
98 words
A method of fabrication of a quartz bar resonator comprising the steps of forming at least a pair of spaced, forked electrodes interconnected by a blank in a single metallic sheet, folding said electrodes with respect to said blank, fixedly supporting at least a part of each of said electrodes from a base plate, removing said blank leaving said electrodes separately extending from said base plate, mounting a quartz bar at one end on one of said spaced electrodes and at the other end on another of said spaced electrodes, and connecting said quartz bar to said electrodes.
Claim 3
Dependent Claim
96 words
A method according to claim 1, wherein said pair of electrodes is formed at each end of said metallic sheet and said sheet is folded in a U-shaped configuration, whereby the forked electrode pairs are held together in fixed spaced relationship by the median blank of the folded sheet, and said median blank is removed after the fixed spaced relationship is maintained by supporting said electrodes from said base plate, and then the quartz bar is introduced between said forked electrodes so as to be supported in the region of its nodal points and connected thereto.
Claim 4
Dependent Claim
14 words
A method according to claim 1, wherein said electrodes are foRmed by mechanical cutting.
Claim 5
Dependent Claim
14 words
A method according to claim 1, wherein said electrodes are formed by chemical treatment.
Claim 6
Dependent Claim
31 words
A method according to claim 1, wherein said base plate is metallic, and wherein said electrode pairs are embedded in glass beads which are formed in openings of said base plate.
Claim 7
Dependent Claim
44 words
A method according to claim 5, wherein lateral legs are formed on the ends of said metallic sheet for resting on the base plate so as to determine the position of the electrodes and of the connected quartz bar relative to said base plate.
Claim 8
Dependent Claim
29 words
A method according to claim 1, wherein said base plate is made of insulating material, and wherein said forked electrodes are supported by soft soldering in said base plate.
Claim 9
Dependent Claim
25 words
A method according to claim 7, wherein said insulating material is either glass or ceramic and includes metallized areas to which said electrodes are soldered.
Claim 10
Dependent Claim
23 words
A method according to claim 1 further comprising positioning a cover over said quartz bar and connecting the same to said base plate.
References Cited (Backward Citations)
US2155035A
Cited
US2434903A
Cited
US2457145A
Cited
US2409838A
Cited
US3535569A
Cited
US3678309A
Cited
US3643305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |