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A kissing shield comprised of a thin, flexible membrane and a frame or holder.
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| Number | Title | Issue Date |
| 7559980 | Absorbent transfer for passive sampling badge A passive air sampler or badge suitable for wearing includes a vial adaptor to facilitate transferring granular or particulate adsorbent to and from it directly into a specially designed vial sized to accommodate a standard amount for use in a desorption tube for ch... | 07/14/2009 |
| 7478467 | Self locking sheet metal duct with a sealant and method for manufacturing the duct with a sealant and installing the duct with a sealant A circular sheet metal duct having a sealant applied across the longitudinal seam. The sealant will improve the efficiency and will reduce or eliminate air leakage from the longitudinal seam. The sealant is applied during the manufacturing processes so that an insta... | 01/20/2009 |
