FR1250279A - Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting - Google Patents

Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting

Info

Publication number
FR1250279A
FR1250279A FR820546A FR820546A FR1250279A FR 1250279 A FR1250279 A FR 1250279A FR 820546 A FR820546 A FR 820546A FR 820546 A FR820546 A FR 820546A FR 1250279 A FR1250279 A FR 1250279A
Authority
FR
France
Prior art keywords
loudspeaker
vapor
filled
partially
completely
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
FR820546A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR820546A priority Critical patent/FR1250279A/en
Application granted granted Critical
Publication of FR1250279A publication Critical patent/FR1250279A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR820546A 1959-03-07 1960-03-07 Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting Expired FR1250279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR820546A FR1250279A (en) 1959-03-07 1960-03-07 Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL236886 1959-03-07
FR820546A FR1250279A (en) 1959-03-07 1960-03-07 Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting

Publications (1)

Publication Number Publication Date
FR1250279A true FR1250279A (en) 1961-01-06

Family

ID=19751613

Family Applications (1)

Application Number Title Priority Date Filing Date
FR820546A Expired FR1250279A (en) 1959-03-07 1960-03-07 Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting

Country Status (5)

Country Link
BE (1) BE588332A (en)
DE (1) DE1098038B (en)
FR (1) FR1250279A (en)
GB (1) GB915367A (en)
NL (2) NL111477C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040063A1 (en) * 1980-05-09 1981-11-18 Marrs Development, Inc. Acoustic energy system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004094A (en) * 1976-03-16 1977-01-18 Novar Electronics Corporation Enclosure system for sound generators
US4450929A (en) * 1980-05-09 1984-05-29 Marrs Ralph E Acoustic energy systems
JPS60500645A (en) * 1983-03-02 1985-05-02 ケイ・エイチ・テクノロジー・コーポレイション constant pressure device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040063A1 (en) * 1980-05-09 1981-11-18 Marrs Development, Inc. Acoustic energy system

Also Published As

Publication number Publication date
BE588332A (en) 1960-09-05
GB915367A (en) 1963-01-09
NL236886A (en)
NL111477C (en) 1965-07-15
DE1098038B (en) 1961-01-26

Similar Documents

Publication Publication Date Title
CH394844A (en) Container tightly closed with a cap
FR1194419A (en) Utensil that can be used with a bottle
BE588953A (en) Silent flow washer.
BE586624A (en) Battery terminal and cover.
BE577951A (en) Improvements to fire extinguishers.
FR1250279A (en) Loudspeaker with closed case which is filled, completely or partially, with a vapor and a liquid coexisting
BE597805A (en) Stopcock
Rowley 4QpNahum and the Teacher of Righteousness
FR1219071A (en) Direct indicator of volume and level of a liquid
CH368030A (en) Valve with differential valve
BE590467A (en) Construction of a set of valves.
FR1174454A (en) Barrel with flexible bag containing wine and receiving the falsetto
Arnett Poetry and Science
FR1332800A (en) Container tightly closed with a cap
FR1228983A (en) Improvements to flexible containers with flow devices
Davies A Greek-English Lexicon of the New Testament and Other Early Christian Literature
BE589146A (en) Exercise cartridges.
BE577375A (en) Spreading spur with cover lock.
Fasnaugh A study of the history and organization of the Toledo Repertoire Company, Inc., from June, 1933, through June, 1943
FR1380055A (en) Fire extinguisher
FR1193109A (en) Fire extinguisher
FR1216589A (en) Two-point rigging device with stabilizer for removable and movable partition
ES71528Y (en) Hermetic closure.
FR1198277A (en) Spark extinguisher device
FR1304982A (en) School notebook assembled with staples