IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0046884
(2005-02-01)
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발명자
/ 주소 |
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출원인 / 주소 |
- Hamilton Associates, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
3 |
초록
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A multi-function device for testing masks such as NBC masks used in civilian and military applications. In its preferred form, the device is self-contained and can be readily transported to field sites by one or two individuals. The device includes a protective storage and transport case. The case i
A multi-function device for testing masks such as NBC masks used in civilian and military applications. In its preferred form, the device is self-contained and can be readily transported to field sites by one or two individuals. The device includes a protective storage and transport case. The case includes an upper portion and a lower portion. The upper portion of the case houses the power unit assembly and includes sufficient storage space to store such things as an aerosol generator reservoir, various headform accessories, a containment shroud, manuals (e. g. installation, operation and maintenance manuals) and nominal tools. The lower portion of the case houses the head assembly and controller unit which are preferably mounted on a cover or top panel. Underneath the top or cover panel of the lower portion of the case are stored the light scattering chamber, flow sensor, pressure transducer, circuit boards and valves. The device can perform multiple tests including: (1) an overall mask leakage test; (2) an outlet valve leakage test; (3) a drink seat test; (4) a drink tube flow test; (5) a drink train leakage test; and, a mask fit test. Further, the device can be programmed for any given test period to perform one or all of the aforementioned tests. The device further can readily create a data log to record results of any given test or series of tests. The device further includes numerous safety features including requiring any operator of the device to reject or retest a defective mask.
대표청구항
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I claim: 1. An apparatus for testing a protective mask, comprising: (a) a testing unit for testing at least first and second protective masks, the second protective mask has a breathing hose while the first protective mask lacks a breathing hose; (b) said testing unit including a headform assembly,
I claim: 1. An apparatus for testing a protective mask, comprising: (a) a testing unit for testing at least first and second protective masks, the second protective mask has a breathing hose while the first protective mask lacks a breathing hose; (b) said testing unit including a headform assembly, said headform assembly being adapted to receive either said first protective mask or said second protective mask depending upon which mask needs to be tested; (c) the headform assembly having at least one conduit forming a first path for fluid flow when the first mask is being tested; and, (d) a path flow control member for changing the path of fluid flow from said first path to a second path when the second mask is being tested such that fluid flows through the breathing hose. 2. An apparatus as set forth in claim 1, wherein: (a) said flow control member is a plug. 3. An apparatus as set forth in claim 1, wherein: (a) said headform assembly further includes a first connection for connecting at least a portion of a drink train having a quick disconnect valve to said headform assembly, said first connection includes a first element for unseating the quick disconnect valve of the drink train. 4. An apparatus as set forth in claim 3, further including: (a) a control system for operating the testing unit to perform at least first and second tests on the protective mask, said first test being one of a drink tube flow test and a drink train leakage test, said second test being a drink tube valve seat test, said control system automatically activates said first element to unseat said quick disconnect valve prior to conducting said first test. 5. An apparatus as set forth in claim 1, wherein: (a) said headform assembly further includes an inflatable seal. 6. An apparatus as set forth in claim 5, wherein: (a) said headform assembly further includes a canteen fixture. 7. An apparatus as set forth in claim 6, wherein: (a) said headform assembly further includes an outlet valve fixture. 8. An apparatus for testing a protective mask, comprising: (a) a testing unit for testing at least first and second protective masks, the second protective mask has a breathing hose while the first protective mask lacks a breathing hose; (b) said testing unit including a headform assembly, said headform assembly being adapted to receive either said first protective mask or said second protective mask depending upon which mask needs to be tested; (c) the headform assembly having at least one conduit forming a first path for fluid flow when the first mask is being tested; and, (d) means for changing the path of fluid flow from said first path to a second path when the second mask is being tested such that fluid flows through the breathing hose. 9. An apparatus as set forth in claim 8, wherein: (a) said headform assembly includes a headform for a full, face seal type mask. 10. An apparatus as set forth in claim 9, wherein: (a) said headform is formed from polyurethane. 11. An apparatus as set forth in claim 8, wherein: (a) said headform assembly further includes a first connection for connecting at least a portion of a drink train having a quick disconnect valve to said headform assembly, said first connection includes a first element for unseating the quick disconnect valve of the drink train. 12. An apparatus as set forth in claim 11, further including: (a) a control system for operating the testing unit to perform at least first and second tests on the protective mask, said first test being one of a drink tube flow test and a drink train leakage test, said second test being a drink tube valve seat test, said control system automatically activates said first element to unseat said quick disconnect valve prior to conducting said first test. 13. An apparatus as set forth in claim 12, wherein: (a) said headform assembly further includes an inflatable seal. 14. An apparatus as set forth in claim 13, wherein: (a) said headform assembly further includes a canteen fixture. 15. An apparatus as set forth in claim 14, wherein: (a) said headform assembly further includes an outlet valve fixture. 16. An apparatus as set forth in claim 1, wherein: (a) said headform assembly includes a headform for a full, face seal type mask. 17. An apparatus as set forth in claim 16, wherein: (a) said headform is formed from polyurethane. 18. A method of testing a first protective mask having a breathing tube and a second protective mask lacking a breathing tube with a single testing unit, said method including the steps of: (a) providing a testing unit having a headform assembly and a path flow control member, the headform assembly is configured to receive either the first protective mask or the second protective mask depending upon which mask needs to be tested, the headform assembly further having at least one conduit forming a first path for fluid to flow when the first protective mask is being tested; and, (b) using the flow control member to direct fluid along a second path when the second mask is being tested so that the fluid flows through the breathing tube of the second protective mask, the second path being different from the first path.
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