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  Drum closure system: closing ring, crimping machine and method of useUSPTO Application #: 20060163255Title: Drum closure system: closing ring, crimping machine and method of use Abstract: An improved drum ring and apparatus for forming the ring during sealing of a drum utilizes a depending open leg having an initial diameter larger than the head of the drum to be sealed and a cover associated therewith. The open leg is deformable about the drum cover and drum body curl by a segmented forming tool to seal said cover to said drum in a compressed condition. (end of abstract)
Agent: Smith, Gambrell & Russell, LLP - Atlanta, GA, US Inventor: Howard Boyd USPTO Applicaton #: 20060163255 - Class: 220320000 (USPTO) Related Patent Categories: Receptacles, Closures, Having Means For Securing Or Retaining Closure In Its Closed Position (e.g., Fastening Devices), Ring Type, For Applying Radial Pressure (e.g., Contractable Bands Encircling Member) The Patent Description & Claims data below is from USPTO Patent Application 20060163255. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] This invention relates to split locking rings, and assembly methods for those locking rings, used for closure of shipping drums or barrels with removable covers. [0002] Current methods for affixing removable covers and sealing gaskets to shipping drums make use of a container design which includes at its open end a drum curl of circular section, a removable cover having an upward and outward protruding flange of similarly arcuate shape as the drum curl, and a gasket suitable for compressing between the curl and cover. Contact and sealing of the curl and cover with the compressible gasket is facilitated by the use of a metal or plastic ring. The ring utilizes any of a variety of angled or tapered "U" or "V"-shaped sections opening radially inward toward the center of the drum. The inside surfaces of the ring simultaneously engage the bottom of the drum curl and the top of the drum cover tangentially. The ends of the locking ring are drawn circumferentially toward one another through the use of a threaded fastener or an over-center type locking buckle, thereby forcing the ring further over the drum curl and cover, and forcing these two members ever closer together, trapping and compressing the sealing gasket between them, thus closing the drum. SUMMARY OF THE PRESENT INVENTION [0003] It is an object of the present invention to provide an improved combination closing ring design, and a device and system for assembling the closing ring onto the drum, that results in increased package reliability, and increased package manufacturing efficiency. [0004] These and other objects of the present invention are accomplished through the use of a drum ring which is only partially formed prior to placement on the drum and a drum sealing device the completes the formation of the drum ring on the drum and lid during the sealing process. [0005] These and other objects and advantages of the invention will become apparent from the following detailed description of the preferred embodiment of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0006] An apparatus for crimping rings on drum heads--embodying the features of the present invention is depicted in the accompanying drawings which form a portion of this disclosure and wherein: [0007] FIG. 1aa is a plan view of the prior art desired drum closure. [0008] FIG. 1b is a sectional view of the prior art drum closure assembly at fit up. [0009] FIG. 1c is a sectional view of the prior art drum closure assembly at closure; [0010] FIG. 1d is a plan view of the prior art drum closure joint; [0011] FIG. 1e is a sectional view of the prior art drum closure assembly and compression tool; [0012] FIG. 2a is a plan view of the present invention drum cover; [0013] FIG. 2b is a sectional view of the drum closure assembly at fit up; [0014] FIG. 2c is a sectional view of the drum closure assembly at compression; [0015] FIG. 2d is a sectional view of the drum closure assembly at closure [0016] FIG. 2e is a plan view of the drum closure bolt joint of the present invention; [0017] FIG. 3a is perspective view of the upper forming tool; [0018] FIG. 3b is a sectional view of the upper forming tool and drum closure assembly at fit up; [0019] FIG. 3C is a sectional view of the upper forming tool and drum closure assembly at compression; [0020] FIG. 4a is a perspective view of the lower form tool retracted; [0021] FIG. 4b is a perspective view of the lower form tool retracted; Continue reading... Full patent description for Drum closure system: closing ring, crimping machine and method of use Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Drum closure system: closing ring, crimping machine and method of use 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. Start now! - Receive info on patent apps like Drum closure system: closing ring, crimping machine and method of use or other areas of interest. ### Previous Patent Application: Re-closable lid, in particular of a drinks can Next Patent Application: Coffee mug/travel mug lid to handle stainless steel beaded chain connection device. Industry Class: Receptacles ### FreshPatents.com Support Thank you for viewing the Drum closure system: closing ring, crimping machine and method of use patent info. IP-related news and info Results in 0.42259 seconds Other interesting Feshpatents.com categories: Novartis , Pfizer , Philips , Polaroid , Procter & Gamble , |
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