GB551954A - Improvements in or relating to the mounting of piezoelectric crystals - Google Patents
Improvements in or relating to the mounting of piezoelectric crystalsInfo
- Publication number
- GB551954A GB551954A GB12165/41A GB1216541A GB551954A GB 551954 A GB551954 A GB 551954A GB 12165/41 A GB12165/41 A GB 12165/41A GB 1216541 A GB1216541 A GB 1216541A GB 551954 A GB551954 A GB 551954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- filled
- relating
- mounting
- moisture
- 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
- 239000013078 crystal Substances 0.000 title abstract 3
- 239000004166 Lanolin Substances 0.000 abstract 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 abstract 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 abstract 1
- 235000013539 calcium stearate Nutrition 0.000 abstract 1
- 239000008116 calcium stearate Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 229940039717 lanolin Drugs 0.000 abstract 1
- 235000019388 lanolin Nutrition 0.000 abstract 1
- 235000019271 petrolatum Nutrition 0.000 abstract 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US376874A US2313129A (en) | 1941-01-31 | 1941-01-31 | Art of mounting piezoelectric crystals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB551954A true GB551954A (en) | 1943-03-17 |
Family
ID=23486852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12165/41A Expired GB551954A (en) | 1941-01-31 | 1941-09-19 | Improvements in or relating to the mounting of piezoelectric crystals |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2313129A (enrdf_load_stackoverflow) |
| BE (1) | BE474895A (enrdf_load_stackoverflow) |
| FR (1) | FR950240A (enrdf_load_stackoverflow) |
| GB (1) | GB551954A (enrdf_load_stackoverflow) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE483732A (enrdf_load_stackoverflow) * | 1944-05-03 | |||
| US2476414A (en) * | 1945-05-24 | 1949-07-19 | William H Hutter | Phonograph pickup having plastic torsion arm |
| US2510585A (en) * | 1945-08-21 | 1950-06-06 | Rca Corp | Dynamic galvanometer |
| US2510342A (en) * | 1946-04-03 | 1950-06-06 | Avco Mfg Corp | Pickup mounting |
| US2562741A (en) * | 1947-02-13 | 1951-07-31 | Dictaphone Corp | Method of making sealed electromechanical translating devices |
| US2539297A (en) * | 1947-02-27 | 1951-01-23 | Lazaro Luis Nicolas Gomez De | Electric musical instrument |
| US2519185A (en) * | 1947-03-21 | 1950-08-15 | Brush Dev Co | Phonograph pickup |
| US2518861A (en) * | 1947-03-21 | 1950-08-15 | Brush Dev Co | Phonograph pickup |
| US2564054A (en) * | 1947-10-10 | 1951-08-14 | Magnavox Co | Phonograph pickup and mechanical motion converting system therefor |
| US2594948A (en) * | 1947-10-30 | 1952-04-29 | Brush Dev Co | Electromechanical transducer unit |
| US2498210A (en) * | 1948-11-02 | 1950-02-21 | Avco Mfg Corp | Piezoelectric phonograph pickup device |
| NL77992C (enrdf_load_stackoverflow) * | 1950-03-02 | |||
| DE1026979B (de) * | 1952-03-13 | 1958-03-27 | Electroacustik Ges M B H | Vorrichtung zur Herstellung einer loesbaren Verbindung zwischen einem Tonabnehmer und einem Abtastorgan |
| DE1026980B (de) * | 1952-03-27 | 1958-03-27 | Electroacustik Ges M B H | Piezoelektrischer Tonabnehmer |
| DE1029173B (de) * | 1952-09-15 | 1958-04-30 | Daniel Tefi Apparatebau | Piezoelektrischer Tonabnehmer |
| DE1053802B (de) * | 1953-05-28 | 1959-03-26 | Tefi Appbau Dr Daniel K G | Verfahren zur Herstellung eines piezoelektrischen Tonabnehmers |
| US2879413A (en) * | 1956-08-21 | 1959-03-24 | Sonotone Corp | Phonograph pickups |
| US2839695A (en) * | 1957-01-31 | 1958-06-17 | Donald H Robey | Frequency controllable piezo-electric resonator |
| US3377439A (en) * | 1958-04-03 | 1968-04-09 | Erie Technological Prod Inc | Binaural piezoelectric pickup |
| GB1052623A (enrdf_load_stackoverflow) * | 1962-06-20 | |||
| US3465747A (en) * | 1964-11-17 | 1969-09-09 | Vernon L Rogallo | Ballistocardiograph |
| US3374663A (en) * | 1965-04-16 | 1968-03-26 | Electronic Systems Inc | Vibration detector |
| US3582692A (en) * | 1968-05-01 | 1971-06-01 | U S Research Corp | Resiliently supported sensing transducer |
| US4051396A (en) * | 1974-02-28 | 1977-09-27 | Channel Products, Inc. | Encapsulation to prevent fracture of piezoelectric high voltage mechanism |
| WO1984001499A1 (en) * | 1982-10-19 | 1984-04-26 | Ivac Corp | Electronic sphygmomanometer |
| US7622844B1 (en) * | 2003-12-30 | 2009-11-24 | Hipercon, Llc | Metal fiber brush interface conditioning |
-
0
- BE BE474895D patent/BE474895A/xx unknown
-
1941
- 1941-01-31 US US376874A patent/US2313129A/en not_active Expired - Lifetime
- 1941-09-19 GB GB12165/41A patent/GB551954A/en not_active Expired
-
1947
- 1947-07-28 FR FR950240D patent/FR950240A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2313129A (en) | 1943-03-09 |
| FR950240A (fr) | 1949-09-21 |
| BE474895A (enrdf_load_stackoverflow) |
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