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 assemblies

Info

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
Application number
GB16726/44A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB16726/44A priority Critical patent/GB581307A/en
Priority to US620819A priority patent/US2492357A/en
Priority to FR931029D priority patent/FR931029A/en
Publication of GB581307A publication Critical patent/GB581307A/en
Expired legal-status Critical Current

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.
GB16726/44A 1944-09-01 1944-09-01 Improvements in or relating to the manufacture of piezo-electric crystal assemblies Expired GB581307A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US2492357A (en) 1949-12-27
FR931029A (en) 1948-02-11

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