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Protective headgear system with filter protectorProtective headgear system with filter protector description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070277294, Protective headgear system with filter protector. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND [0001]1. Field of the Invention [0002]This invention is directed to personal environmental protection systems, in general, and, more particularly, to a headgear structure which is worn by an individual in an environment wherein control of filtered air and protection from particulate material is required. [0003]2. Prior Art [0004]There are several types of air flow, filtration and protective systems which are known in the art. Several types of such systems are currently available on the market for use in surgical arenas, in "clean room" environments, or in hazardous/contaminated environments. [0005]Some of the existing systems include hoods, gowns, filters, and the like. In some instances, the air filters are built into the helmet structure and produce a rather clumsy, cumbersome headgear unit. Known units frequently include external sources of air such as gas cylinders, air lines or the like which are connected to the helmet structure by tubes, hoses or the like. The hose-connected systems, and the long gowns or hoods tend to become extremely cumbersome as well as restrictive of the movements and flexibility of the wearer during a procedure. [0006]In many of the systems known in the art the hoods and/or gowns are used as filtration devices which have to be replaced frequently. This structure tends, therefore, to become costly inasmuch as the disposable filtration devices are quite expensive. [0007]Moreover, these systems tend to be fairly expensive, especially regarding the disposable portions of the system. [0008]Many such products are known in the prior art. One suitable and functional system is described in U.S. Pat. No. 5,054,480; PERSONAL AIR FILTRATION AND CONTROL SYSTEM, R. O. Bare et al. [0009]Another such system is described in U.S. Pat. No. 5,711,033; AIR FILTRATION AND CONTROL SYSTEM INCLUDING HEADGEAR by L. J. Green, et al. [0010]The most pertinent prior disclosure is described in U.S. Pat. No. 6,918,141; PROTECTIVE HEADGEAR SYSTEM, by Lawrence J. Green, Celestino Murillo and Obed Rios. SUMMARY OF THE INSTANT INVENTION [0011]This invention is directed to a protective headgear system which is worn by a surgeon during a surgical procedure, a technician during an assembly process, a worker during handling of toxic wastes, or the like. [0012]The system includes a relatively light weight, substantially rigid, support headgear structure. Typically, a fan mechanism is mounted on the headgear structure to provide air flow at the headgear structure. A suitable power supply, such as a battery pack or the like, can be used to selectively power the fan. [0013]The system also includes one or more removable and disposable filters which are adapted to be easily and snugly attached to and supported by the headgear structure to significantly cover the outer surface of the headgear structure. [0014]A transparent facial shield (or lens) is adapted to easily attach to the headgear structure so as to cover the face of the wearer in order to maintain sterile, non-contaminating conditions for the wearer. [0015]A flexible containment cuff is adapted to be easily attached to the lower edge of the facial shield in order to enclose the lower projection of the lens and provide a sealed space about the wearer's head. In one embodiment, the cuff can be closed around the wearer's neck. [0016]An adjustable headband is attached to the headgear structure for supporting the assembled structure on the wearer's head. [0017]An outer, relatively lightweight, substantially rigid filter protector is provided for mounting to the lens in at least a partially spaced apart relationship to provide an air gap between the lens and the filter protector. BRIEF DESCRIPTION OF THE DRAWINGS [0018]FIG. 1 is a perspective view of one embodiment of the assembled helmet system of the instant invention. [0019]FIG. 2 is a cross-sectional view of the embodiment of the assembled helmet system shown in FIG. 1. [0020]FIG. 3 is a rear exploded view of the embodiment of the helmet system shown in FIGS. 1 and 2. [0021]FIG. 4 is a frontal exploded view of the embodiment of the headgear structure of the instant invention as shown in FIGS. 1, 2 and 3. Continue reading about Protective headgear system with filter protector... Full patent description for Protective headgear system with filter protector Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Protective headgear system with filter protector patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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