Foam encased pump

Inactive Publication Date: 2005-12-29
LEONHARD TODD W
View PDF29 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] The present invention provides a pump, particularly designed for use with a m

Problems solved by technology

Persons with significant respiratory problems often require multiple nebulizer treatments every day, each taking several minutes to administer.
Quiet operation of the compressor can be obtained by insulating the housing, however, this adds bulk and can cause cooling problems.
Mufflers can be added at the compressor exhaust,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Foam encased pump
  • Foam encased pump
  • Foam encased pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention provides a pump with a foam housing construction providing quiet operation such that the pump is suitably used in a medical nebulizer application. The foam housing gives the pump improved noise and vibration dampening characteristics in a compact, preferably hand-held, package. These characteristics of the foam housing reduce dependency on other vibration dampening components, such as suspension spring assemblies disposed between the reciprocating components and the housing or isolation springs supporting the fixed components in the housing.

[0034] The pump of the present invention will be described herein in two different embodiments. A first embodiment, shown in FIGS. 1-11, has a two-piece foam housing in which the two parts are joined by union ring with multiple pin elements that engage the housing parts. A second embodiment, shown in FIGS. 12-19, has a uni-body foam housing formed around the components of the pump assembly, preferably by an insert mo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A compact pump has a uni-body, or alternately a two-part, housing of self-skinning foam construction for superior noise and vibration reduction, such as needed for medical nebulizer applications. The uni-body foam housing is formed by molding the housing around a pump assembly having special features designed to shield and space apart moving or sensitive internal components of the pump assembly from the foam during the insert molding process. The alternate two-part foam housing is assembled using a union ring having multiple barbed pins that fit into openings in mating faces of the two housing sections.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This application claims benefit to U.S. Provisional Patent Application No. 60 / 583,424, filed on Jun. 28, 2004.STATEMENT OF FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not applicable. BACKGROUND OF THE INVENTION [0003] The present invention relates to pumps and compressors and in particular to pumps and compressors with low noise characteristics, especially suited for use in medical nebulizer applications. [0004] Nebulizers are commonly used to deliver medication to persons with respiratory ailments. For example, bronchodialators, which are used to open airway passages, are commonly administered with nebulizers. A nebulizer changes liquid medication into a fine, atomized mist or vapor. The medicinal vapor is inhaled through a mouthpiece or mask and the atomized medication is able to penetrate deeply into one's airways because of its fine particle size. The liquid medicine is atomized by mixing it with compressed air or oxygen. [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F04B31/00F04B53/00
CPCF04B53/003
Inventor LEONHARD, TODD W.
Owner LEONHARD TODD W
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap