GB581307A - Improvements in or relating to the manufacture of piezo-electric crystal assemblies - Google Patents
Improvements in or relating to the manufacture of piezo-electric crystal assembliesInfo
- Publication number
- GB581307A GB581307A GB16726/44A GB1672644A GB581307A GB 581307 A GB581307 A GB 581307A GB 16726/44 A GB16726/44 A GB 16726/44A GB 1672644 A GB1672644 A GB 1672644A GB 581307 A GB581307 A GB 581307A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piezo
- relating
- manufacture
- electric crystal
- crystal assemblies
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
- H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49993—Filling of opening
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
581,307. Constant - temperature containers. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and POWERS, S. J. Sept. 1, 1944, No. 16726. Drawings to Specification. [Class 64 (ii)] [Also in Group XL] An evacuated container for a piezo-electric crystal has two spaced walls with a heating coil between them so that the temperature of the crystal may be kept constant.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16726/44A GB581307A (en) | 1944-09-01 | 1944-09-01 | Improvements in or relating to the manufacture of piezo-electric crystal assemblies |
US620819A US2492357A (en) | 1944-09-01 | 1945-10-06 | Manufacture of quartz crystal assemblies |
FR931029D FR931029A (en) | 1944-09-01 | 1946-06-12 | Improvements in the assembly of piezoelectric quartz crystals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16726/44A GB581307A (en) | 1944-09-01 | 1944-09-01 | Improvements in or relating to the manufacture of piezo-electric crystal assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB581307A true GB581307A (en) | 1946-10-08 |
Family
ID=10082543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16726/44A Expired GB581307A (en) | 1944-09-01 | 1944-09-01 | Improvements in or relating to the manufacture of piezo-electric crystal assemblies |
Country Status (3)
Country | Link |
---|---|
US (1) | US2492357A (en) |
FR (1) | FR931029A (en) |
GB (1) | GB581307A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2656473A (en) * | 1950-05-24 | 1953-10-20 | Bell Telephone Labor Inc | Crystal unit for use at high temperatures |
US2833942A (en) * | 1953-02-05 | 1958-05-06 | Leonard E Ravich | Contaminant-proof electrical circuit components |
US3017525A (en) * | 1956-11-26 | 1962-01-16 | John M Wolfskill | Mounting support for piezoelectric crystal units |
US3132239A (en) * | 1962-04-25 | 1964-05-05 | United Aircraft Corp | Electron beam compression welding |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1836735A (en) * | 1924-07-16 | 1931-12-15 | American Optical Corp | Crystal oscillator |
US1820553A (en) * | 1927-09-16 | 1931-08-25 | Siemens Ag | Device for cutting off vacuum vessels from the exhaust tubes of vacuum pumps |
US2203545A (en) * | 1938-06-18 | 1940-06-04 | Gen Electric | Piezoelectric device |
US2260707A (en) * | 1939-06-20 | 1941-10-28 | Bell Telephone Labor Inc | Crystal controlled oscillator for ultra-high frequencies |
US2229436A (en) * | 1940-09-21 | 1941-01-21 | Gen Electric | Method of making metal-enclosed vacuum tubes |
-
1944
- 1944-09-01 GB GB16726/44A patent/GB581307A/en not_active Expired
-
1945
- 1945-10-06 US US620819A patent/US2492357A/en not_active Expired - Lifetime
-
1946
- 1946-06-12 FR FR931029D patent/FR931029A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2492357A (en) | 1949-12-27 |
FR931029A (en) | 1948-02-11 |
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