GB501691A - Piezo-electric apparatus for repeating electric impulses - Google Patents
Piezo-electric apparatus for repeating electric impulsesInfo
- Publication number
- GB501691A GB501691A GB4405/38A GB440538A GB501691A GB 501691 A GB501691 A GB 501691A GB 4405/38 A GB4405/38 A GB 4405/38A GB 440538 A GB440538 A GB 440538A GB 501691 A GB501691 A GB 501691A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emf
- piezo
- plates
- electric
- resistance
- 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 abstract 5
- 239000002305 electric material Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229920001800 Shellac Polymers 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 244000145845 chattering Species 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 239000004020 conductor Substances 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
- 230000035945 sensitivity Effects 0.000 abstract 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 abstract 1
- 229940113147 shellac Drugs 0.000 abstract 1
- 235000013874 shellac Nutrition 0.000 abstract 1
- 239000004208 shellac Substances 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/112—Treads of metal or with an upper layer of metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H57/00—Electrostrictive relays; Piezoelectric relays
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Thermally Actuated Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US131160A US2166763A (en) | 1937-03-16 | 1937-03-16 | Piezoelectric apparatus and circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB501691A true GB501691A (en) | 1939-03-03 |
Family
ID=22448167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4405/38A Expired GB501691A (en) | 1937-03-16 | 1938-02-11 | Piezo-electric apparatus for repeating electric impulses |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2166763A (enrdf_load_stackoverflow) |
| BE (1) | BE426805A (enrdf_load_stackoverflow) |
| CH (1) | CH208062A (enrdf_load_stackoverflow) |
| FR (1) | FR835337A (enrdf_load_stackoverflow) |
| GB (1) | GB501691A (enrdf_load_stackoverflow) |
| NL (1) | NL51407C (enrdf_load_stackoverflow) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2479173A (en) * | 1944-07-26 | 1949-08-16 | Gen Electric | Circuit and starter for electric discharge devices |
| US2714642A (en) * | 1952-07-10 | 1955-08-02 | Bell Telephone Labor Inc | High speed relay of electromechanical transducer material |
| US2916578A (en) * | 1955-04-01 | 1959-12-08 | Electric Machinery Mfg Co | Electrostrictive capacitive relay having tension mounted actuator |
| US2967956A (en) * | 1955-04-19 | 1961-01-10 | Gulton Ind Inc | Transducer |
| US3613589A (en) * | 1955-12-23 | 1971-10-19 | Us Army | Bomb fuzing system |
| US3004176A (en) * | 1959-03-30 | 1961-10-10 | Bell Telephone Labor Inc | Electromechanical transducers |
| US3109153A (en) * | 1960-11-18 | 1963-10-29 | Gen Dynamics Corp | Adjustable piezoelectric wave filter having two resonance peaks |
| DE2063799A1 (de) * | 1970-12-24 | 1972-07-06 | Siemens Ag | Elektrisches Zeitglied zum verzögerten Betätigen eines Schalters |
| US3777093A (en) * | 1972-05-25 | 1973-12-04 | R Sterns | Electromechanical relay |
| JPS5161237U (enrdf_load_stackoverflow) * | 1974-11-07 | 1976-05-14 | ||
| JPS6230773Y2 (enrdf_load_stackoverflow) * | 1980-12-19 | 1987-08-07 | ||
| JPS59181585A (ja) * | 1983-03-31 | 1984-10-16 | Toshiba Corp | 変位発生装置 |
| JPS6046636U (ja) * | 1983-09-05 | 1985-04-02 | オムロン株式会社 | 多極リレ− |
| US4538087A (en) * | 1984-06-11 | 1985-08-27 | General Electric Company | Alternating current driven piezoelectric latching relay and method of operation |
| US4553061A (en) * | 1984-06-11 | 1985-11-12 | General Electric Company | Piezoelectric bimorph driven direct current latching relay |
| USRE33577E (en) * | 1984-12-21 | 1991-04-23 | General Electric Company | Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture |
| US4620124A (en) * | 1984-12-21 | 1986-10-28 | General Electric Company | Synchronously operable electrical current switching apparatus having increased contact separation in the open position and increased contact closing force in the closed position |
| US4595855A (en) * | 1984-12-21 | 1986-06-17 | General Electric Company | Synchronously operable electrical current switching apparatus |
| US4626698A (en) * | 1984-12-21 | 1986-12-02 | General Electric Company | Zero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devices |
| US4620123A (en) * | 1984-12-21 | 1986-10-28 | General Electric Company | Synchronously operable electrical current switching apparatus having multiple circuit switching capability and/or reduced contact resistance |
| USRE33691E (en) * | 1984-12-21 | 1991-09-17 | General Electric Company | Piezoelectric ceramic switching devices and systems and method of making the same |
| US4670682A (en) * | 1984-12-21 | 1987-06-02 | General Electric Company | Piezoelectric ceramic switching devices and systems and method of making the same |
| US4669160A (en) * | 1984-12-21 | 1987-06-02 | General Electric Company | Method for prepolarizing and centering a piezoelectric ceramic switching device |
| US4678957A (en) * | 1986-06-24 | 1987-07-07 | General Electric Company | Piezoelectric ceramic switching devices and systems and methods of making the same |
| US4714847A (en) * | 1984-12-21 | 1987-12-22 | General Electric Company | Advanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufacture |
| USRE33618E (en) * | 1984-12-21 | 1991-06-25 | General Electric Company | Method for initially polarizing and centering a piezoelectric ceramic switching device |
| USRE33587E (en) * | 1984-12-21 | 1991-05-14 | General Electric Company | Method for (prepolarizing and centering) operating a piezoceramic power switching device |
| US4689517A (en) * | 1984-12-21 | 1987-08-25 | General Electric Company | Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture |
| USRE33568E (en) * | 1984-12-21 | 1991-04-09 | General Electric Company | Piezoelectric ceramic switching devices and systems and methods of making the same |
| US4658154A (en) * | 1985-12-20 | 1987-04-14 | General Electric Company | Piezoelectric relay switching circuit |
| US4697118A (en) * | 1986-08-15 | 1987-09-29 | General Electric Company | Piezoelectric switch |
| US4967568A (en) * | 1988-03-25 | 1990-11-06 | General Electric Company | Control system, method of operating an atmospheric cooling apparatus and atmospheric cooling apparatus |
| US5628411A (en) * | 1994-12-01 | 1997-05-13 | Sortex Limited | Valve devices for use in sorting apparatus ejectors |
| US6497660B1 (en) * | 2000-10-18 | 2002-12-24 | Koninklijke Philips Electronics N.V. | Ultrasound imaging device |
| US11435461B2 (en) | 2019-07-19 | 2022-09-06 | GE Precision Healthcare LLC | Method and system to prevent depoling of ultrasound transducer |
| US11464494B2 (en) | 2019-07-19 | 2022-10-11 | GE Precision Healthcare LLC | Method and system to revert a depoling effect exhibited by an ultrasound transducer |
-
0
- NL NL51407D patent/NL51407C/xx active
- BE BE426805D patent/BE426805A/xx unknown
-
1937
- 1937-03-16 US US131160A patent/US2166763A/en not_active Expired - Lifetime
-
1938
- 1938-02-11 GB GB4405/38A patent/GB501691A/en not_active Expired
- 1938-03-15 CH CH208062D patent/CH208062A/de unknown
- 1938-03-16 FR FR835337D patent/FR835337A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE426805A (enrdf_load_stackoverflow) | |
| CH208062A (de) | 1939-12-31 |
| NL51407C (enrdf_load_stackoverflow) | |
| FR835337A (fr) | 1938-12-19 |
| US2166763A (en) | 1939-07-18 |
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