Spirometer
阅读：207发布：2020-12-28
专利汇可以提供Spirometer专利检索，专利查询，专利分析的服务。并且A spirometer of the bellows type having a frame that releasably holds a pivotal bellows assembly carrying a vertically movable stylus that impresses a tracing on a spirogram record carried by a translating carriage assembly adjacent the stylus, with the spirogram being traced on one side of a pressure sensitive record permitting viewing of the tracing from the other side as it is being recorded. Ease of removal of the bellows permits rapid cleaning of the bellows while the pivoted bellows mounting permits use of a curved recording surface resulting in use of a linear chart. The chart is readily insertable into a selfcentering chart holder which accurately aligns the chart ready for receiving a spirogram record.，下面是Spirometer专利的具体信息内容。
1. A spirometer, comprising: frame means, a bellows assembly removably mounted in said frame means, means in communication with said bellows adapted for conducting gases thereinto, said recording means associated with said bellows assembly, frame means including a generally vertical frame member, said bellows assembly including a bottom plate, a top plate pivotally secured with respect to said bottom plate, hinge means for said plates, and easily releasable, resilient means biassing said bellows into engagement with said frame.
2. A spirometer as defined in claim 1 wherein said last named means is carried by said hinge means and engages with means on said frame means for releasably holding said bellows in said frame.
3. A spirometer as defined in claim 2 wherein said generally vertical frame member has means against which the bellows securing means reacts for holding said bellows means in said frame.
4. A spirometer assembly, comprising: frame means, a marking assembly movably mounted relative to said frame means, air expandable means for controlling movement of said marking assembly, means in communication with said air expandable means adapted for conducting gases thereinto, a record receiving assembly means for holding a record in cooperating relation to said marking assembly, said record having a rear marking surface against which said marking assembly bears, a transparent cover carried by said record receiving assembly means for holding and backing said record in position for marking while allowing viewing of the record during marking.
5. A spirometer as defined in claim 4 wherein said cover is pivotally secured to said record receiving assembly means.
6. A spirometer as defined in claim 4 wherein one of said record receiving assembly means and said cover includes means for horizontally and vertically aligning said record.
7. A spirometer as defined in claim 4 wherein said record receiving assembly means comprises a portion of a reciprocable record carriage, means for driving said carriage so that the record moves laterally with respect to the marking assembly.
8. A spirometer apparatus, comprising: a housing, frame means within said housing, a marking assembly on said frame means and within said housing, expandable means within said housing for controlling movement of said marking assembly in a first direction, means in communication with said expandable means adapted for conducting gases thereinto, record means cooperable with said marking assembly, said record means being pressure sensitive so that when contacted on one side by said marking assembly a tracing will be visible on the other side, and means for providing relative lateral movement between said marking assembly and said record means such that said record means other side is visible externally of said housing.
9. A spirometer as defined in claim 8 wherein said last named means includes a reciprocable carriage assembly for the record means.
10. A spirometer as defined in claim 8 wherein said carriage assembly includes a window frame against which the record medium is placed, said frame having an opening permitting the marking assembly to engage said one side of the record means, and a transparent cover engaging the other side of the record means through which the tracing on the record may be viewed.
11. A spirometer as defiNed in claim 10 wherein means are provided for driving said carriage at constant speed relative to said frame means.
12. A spirometer as defined in claim 11 further including means for actuating said driving means upon movement of said expandable means.
13. A spirometer apparatus, comprising: frame means, carriage means reciprocable on said frame means and adapted to secure and carry an arcuately shaped record, a marking means movably mounted relative to said frame means for movement in a direction generally transverse to the direction of movement of said carriage means, actuator means for moving said carriage means, expandable means for moving said marking member in an arcuate path about an axis of said expandable means, means in communication with said expandable means adapted for conducting gases thereinto, and means responsive to movement of said expandable means for initiating operation of said actuator means, said marking means including a marking member for subscribing a linear plot on said record from the rear thereof and providing a tracing visible on the other side of said record.
14. A spirometer comprising: a housing having an access opening; a frame within said housing, said frame having a cantilevered portion adjacent to said access opening; detent means within said housing adjacent said cantilevered portion and fixedly mounted within said housing; a bellows assembly removably mounted on said frame, means in communication with said bellows assembly adapted for conducting gases thereinto, recording means associated with said bellows assembly, said bellows assembly including means engaged with said detent means stationarily holding said bellows assembly within said housing, the inherent resilience of said cantilevered portion serving to urge said bellows assembly into firm engagement with said detent means whereby said bellows assembly will normally be held in a predetermined position within said housing but may be easily removed therefrom through said access opening by moving the bellows assembly against the resilience of said cantilevered portion to disengage said bellows assembly from said detent means.
15. A spirometer according to claim 14 wherein said bellows assembly includes a top plate, a bottom plate and hinge means securing said plates together, said engaging and holding means being carried by said hinge means.
16. A spirometer according to claim 15 wherein said hinge means are defined by a bail, the bight of said bail acting as said engaging and holding means.
17. A spirometer according to claim 16 wherein said detent means comprise at least one projection extending inwardly of said housing.
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