Claims
- 1. A collapsible articulated actuator liar the aerosol delivery of a medicament comprising
- an expansion chamber portion, and an aerosol medicament cannister-receiving portion being slideably receivable inside said expansion chamber and rotatably attached thereto;
- said expansion chamber portion comprising an elliptical cylinder having first and second open ends,
- said first open end having mouthpiece means, and
- said second open end having hinging means for rotatably and slideably attaching said cannister-receiving portion,
- said elliptical expansion chamber having a cross-sectional eccentricity of between about 0.50 and about 0.85;
- said medicament cannister-receiving portion comprising an elliptical cylinder having first and second open ends,
- said first open end having means for slideably receiving and engaging an aerosol cannister of medicament, and
- said second open end having cannister valve-stem receiving means, aerosol spray orifice means, means for slideably and rotatably attaching said cannister-receiving portion to said expansion chamber portion, and stop means for affixing the angle between said expansion chamber and said cannister-receiving portion;
- whereby when said cannister-receiving portion is slideably extended out of said said expansion chamber and rotated annul said hinging means, the angle between the major axes of said cannister-receiving portion and said expansion chamber portion is fixed.
- 2. An actuator as defined by claim 1 wherein the cross-sectional eccentricity of the elliptical expansion chamber is about 0.75.
- 3. An actuator as defined by claim 1 wherein the angle between the major axes of said cannister-receiving portion and said expansion chamber when said actuator is in its fully extended and folded position for use ranges between about 102.degree. and about 110.degree..
- 4. An actuator as defined by claim 3 wherein the angle between the major axes of said cannister-receiving portion and said expansion chamber when said actuator is in its fully extended and folded position for use is about 105.degree..
- 5. An actuator as defined by claim 1 wherein the volume of said expansion chamber ranges between about 25 cm.sup.3 and about 100 cm.sup.3.
- 6. An actuator as defined by claim 5 wherein the volume of mid expansion chamber is about 50 cm.sup.3.
- 7. A collapsible articulated actuator for the aerosol delivery, of a medicament comprising
- an expansion chamber portion, and an aerosol medicament cannister-receiving portion being slideably receivable inside said expansion chamber and rotatably attached thereto;
- said expansion chamber portion comprising an elliptical cylinder having an eccentricity ranging between about 0.50 and about 0.85 and a volume ranging between about 25 cm.sup.3 and 100 cm.sup.3 and having first and second open ends
- said first open end having mouthpiece means, and
- said second open end having hinging means for rotatably and slideably attaching said cannister-receiving portion; and
- said medicament cannister-receiving portion comprising an elliptical cylinder having first and second open ends,
- said first open end having means for slideably receiving and engaging an aerosol cannister of medicament, and
- said second open end having cannister valve-stem receiving means, aerosol spray orifice means, means for slideably and rotatably attaching said cannister-receiving portion to said expansion chamber portion, and stop means for affixing the angle between said expansion chamber and said cannister-receiving portion;
- whereby when said cannister-receiving portion is slideably extended out of said expansion chamber and rotated about said hinging means the angle between the major axes of said cannister-receiving portion and said expansion chamber portion is fixed at about 102.degree. to about 110.degree..
- 8. An actuator as defined by claim 7 wherein the cross-sectional eccentricity of the elliptical expansion chamber is about 0.75.
- 9. An actuator as defined by claim 7 wherein the volume of said expansion chamber is about 50 cm.sup.3.
- 10. An actuator as defined by claim 7 wherein the angle between the major axes of said cannister-receiving portion and said expansion chamber when said actuator is in its fully extended and folded position for use is about 105.degree..
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 08/216,702, filed Mar. 23, 1994, now abandoned.
US Referenced Citations (34)
Foreign Referenced Citations (6)
Number |
Date |
Country |
1491868 |
Aug 1969 |
DEX |
1128655 |
Oct 1968 |
GBX |
214246 |
Jan 1985 |
GBX |
2142246 |
Jan 1985 |
GBX |
2195544 |
Apr 1988 |
GBX |
WO9220391 |
Nov 1992 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
216702 |
Mar 1994 |
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