|Publication number||US3490805 A|
|Publication date||Jan 20, 1970|
|Filing date||Jan 15, 1968|
|Priority date||Jan 15, 1968|
|Publication number||US 3490805 A, US 3490805A, US-A-3490805, US3490805 A, US3490805A|
|Inventors||Michael J Di Pierro, Donald P Mastrovito|
|Original Assignee||Standard Oil Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (43), Classifications (11)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Jan. 20, 1970 b PIERRQ ET AL 3,490,805
PLASTIC CLASP Filed Jan. 15, 1968 INVENTORS Dana/d P. Masiro iro Misha J. DIP/arm United States Patent O U.S. Cl. 292258 4 Claims ABSTRACT OF THE DISCLOSURE A clasp for securing lids to containers comprises a polypropylene hinge body containing a self-hinging area to provide the necessary flexibility for unclasping the clasp, the hinge body having an arcuate hinge bearing portion adapted to fit around a hinge pin of a member fitted with a clasping lip.
Our invention is a novel clasp useful for securing lids to containers. This clasp has advantages heretofore unknown to the art in that it can comprise only two pieces which are conveniently made by injection molding. Clasps capable of functioning for their intended use are obtained after simple cleaning of runners and assembly of two pieces by snapping them together. One of the two pieces, which will hereinafter be referred to as the hinge body, should be made of polypropylene since its construction incorporates a section of diminished thickness which provides a self-hinging area necessary to the operation of our clasp. The other piece, hereinafter called the frame, is desirably made of polypropylene because of its excellent durability when employed in molded articles, though it can be made of other polymers having similar properties, such as high-density polyethylene. A better understanding of our novel clasp can be obtained by reference to the accompanying drawing and the figures contained therein.
FIGURE 1 is a plan view of our novel clasp lying face down. The frame 1 and its relationship to the hinge body 2 are apparent from this figure. The representation of the clasp shows it as it would appear to an observer when afiixed to a container and in the closed or snapped position.
FIGURE 2 is a cross-section of our clasp taken along section line 22 of FIGURE 1. This shows an inner face head 3, which co-acts with a projection on the secured lid of a container to hold the clasp in place. The hinge pin 4 is shown at the base of the clasp section where it provides a connection to an arcuate portion of the hinge body 2. This hinge pin is conveniently made as an integral part of the frame holding, though it could be a. separate piece. Hinge body 2 is made with arcuate portion 6 shaped so as to encircle hinge pin 4 to an extent sufficient to hold it in place while being discontinuous to an extent sufficient to permit the arcuate portion 6 of the hinge body 2 to be snapped in place over hinge pin 4. Hinge body 2 also contains a portion of diminished thickness 7 which furnishes, in a known way, a self-hinging area. The end portion 8 of the hinge body 2 is adapted for friction fit or snap fit into a matching receptacle on the body of a container on which the clasp is to be used, though it could be secured by any of several means, including mechanical fasteners such as screws.
FIGURE 3 is a back view of the clasp which provides a better understanding of the relationship of inner face bead 3, hinge pin 4, hinge body 2, arcuate portion 6, self-hinging area 7 and end portion 8. This view shows the position of the elements of our clasp when snapped in place against the side of a container whose lid is being retained. Parts 9 and 9a are reinforcing ribs running the length of the clasp frame in order to give it additional r3 CC rigidity. Parts 10 and 10a are similar reinforcing segments for the base of the clasp where it attaches to hinge pin 4.
FIGURE 4 is a representation of our clasp in place on a container and securing the lid of such container. Inner face bead 3 is fitted over a co-acting bead 12 on the lid of the container. The hinge body 2 is shown flexed inwardly at self-hinging area 7 so as to maintain tension upon the clasp at inner face bead 3, thereby securing the clasp and the container lid in place. Reinforcing member 13 on the hinge body 2 provides structural rigidity between the arcuate portion 6 and the projection of hinge body 2 which is a grip adapted for grasping and unlatching the clasp. As can be seen from the drawing, the clasp can be affixed to the container whose lid it retains by securing the end portion 8 of the hinge body 2 in a suitable closely fitting enclosure 14 formed in or attached to the container. The end portion 8 and the enclosure 14 may be fitted with interlocking raised beads and depressions in order to prevent easy withdrawal of the end portion from the enclosure. Various configurations of reinforcing ribs and variations in structure can be effected by those skilled in the art having knowledge of our invention.
Having thus described our invention, what we claim is:
1. An article of manufacture comprising:
(1) a frame having:
(a) opposed end pieces, and
(b) side frame members connecting said opposed end pieces, one of said end pieces having shaped therein (0) a bead on the inner face of said end piece, the other of said end pieces having fitted therein ((1) a hinge pin, said hinge pin being associated with;
(2) a polypropylene hinge body having molded therein an arcuate portion adapted to snap fit over said hinge pin, said hinge body having a projection forming:
(a) a grip end spaced from said arcuate portion and at the other end of said hinge body from said grip (b) a section of diminished thickness providing a self-hinging area, said self-hinging area connecting the major portion of the hinge body to (c) an end portion adapted for securing said hinge body to a surface.
2. The article of claim 1 wherein said hinge pin is an integrally molded part of one of said end pieces of said frame.
3. The article of claim 2 wherein said end portion adapted for securing said hinge body is fitted with a raised bead adapted for securing said end portion in an enclosure fitted with a receptacle for said raised bead.
4. The article of claim 3 wherein said frame is a onepiece molding of polypropylene.
References Cited UNITED STATES PATENTS 1,773,693 8/1930 Stirrup 292113 3,181,905 5/1965 Bisbing 292109 3,324,930 6/ 1967 Colombo --231 FOREIGN PATENTS 575,086 4/1924 France.
MARVIN A. CHAMPION, Primary Examiner R. L. WOLFE, Assistant Examiner U.S. Cl. X.R. 292-413
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1773693 *||Aug 12, 1926||Aug 19, 1930||Stirrup Mfg Company Inc||Latch for covers|
|US3181905 *||Apr 2, 1963||May 4, 1965||South Chester Corp||Draw pull catch|
|US3324930 *||Jul 26, 1965||Jun 13, 1967||Lavorazione Mat Plast||Folding sliding doors|
|FR575086A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3730576 *||Feb 3, 1971||May 1, 1973||Plastic Forming Co||Plastic container and latch|
|US3828969 *||Oct 4, 1971||Aug 13, 1974||Plastic Forming Co||Plastic container|
|US3912313 *||Apr 22, 1974||Oct 14, 1975||Kitson Poultry Equipment Co||Cage gate latch|
|US4023840 *||May 13, 1976||May 17, 1977||Woodstream Corporation||Latch assembly|
|US4035009 *||May 28, 1974||Jul 12, 1977||Jacobs Stanley A||Container and locking lid|
|US4111476 *||Jun 15, 1977||Sep 5, 1978||Jacobs Stanley A||Latch handle and container lock|
|US4522312 *||Sep 14, 1983||Jun 11, 1985||Southern Case, Inc.||Container and associated latch structure|
|US4540206 *||Apr 30, 1984||Sep 10, 1985||Southco, Inc.||Adjustable draw latch|
|US4665596 *||Nov 25, 1985||May 19, 1987||Green Neville K||Fastening device|
|US4782673 *||Jun 9, 1987||Nov 8, 1988||Samsonite Corporation||Connection device|
|US4804215 *||May 31, 1988||Feb 14, 1989||Southco, Inc.||Flexible draw latch|
|US4828298 *||May 31, 1988||May 9, 1989||Southco, Inc.||Flexible draw latch|
|US4830413 *||Nov 6, 1987||May 16, 1989||Southco, Inc.||Flexible draw latch|
|US4917421 *||Nov 1, 1988||Apr 17, 1990||Federal-Hoffman, Inc.||Detachable fastener for electrical enclosures|
|US5033778 *||Apr 16, 1990||Jul 23, 1991||Minnesota Mining And Manufacturing Company||Integral over-center toggle latch for use with a molded case|
|US5040834 *||Nov 29, 1990||Aug 20, 1991||Rubbermaid Incorporated||Lockable latch for a container|
|US5125697 *||Apr 11, 1991||Jun 30, 1992||Rubbermaid Incorporated||Lockable latch for a container|
|US5127684 *||Oct 12, 1990||Jul 7, 1992||Filterwerk Mann & Hummel Gmbh||Tension clamp|
|US5139294 *||Apr 26, 1991||Aug 18, 1992||Southern Case, Inc.||Latch bearing for blow-molded case, and method and apparatus for forming same|
|US5193706 *||Jan 26, 1990||Mar 16, 1993||Rubbermaid Incorporated||Toolbox|
|US5238142 *||Dec 7, 1992||Aug 24, 1993||Rubbermaid Incorporated||Toolbox|
|US5480197 *||Nov 3, 1993||Jan 2, 1996||Filterwerk Mann & Hummel Gmbh||Toggle catch for intake air filters of internal-combustion engines, compressors and other machines which take in air|
|US5685451 *||Jan 17, 1996||Nov 11, 1997||Delta Consolidated Industries||Carrying case with inserted nameplate|
|US6070754 *||Dec 22, 1998||Jun 6, 2000||Delta Consolidated Industries||Carrying case with inserted nameplate|
|US6123893 *||Jun 13, 1997||Sep 26, 2000||Delta Consolidated Industries||Process of making a carrying case with inserted nameplate by blow molding|
|US6189938 *||Sep 10, 1998||Feb 20, 2001||Fujitsu Limited||Locking structure for covering element|
|US6196828||Mar 28, 2000||Mar 6, 2001||Delta Consolidated Industries||Blow mold for making a carrying case with inserted nameplate|
|US6457750||Jun 19, 2000||Oct 1, 2002||Southco, Inc.||Draw latch|
|US6469247||Nov 16, 2000||Oct 22, 2002||Robroy Industries, Inc.||Enclosure|
|US6604798||Aug 10, 2000||Aug 12, 2003||Integra Enclosures||Enclosure for securing components|
|US6642446||May 28, 2002||Nov 4, 2003||Robroy Industries, Inc.||Enclosure|
|US6929295 *||Jan 7, 2003||Aug 16, 2005||Johnson Controls, Inc.||Storage compartment and latch arrangement thereof|
|US8627603||May 31, 2011||Jan 14, 2014||Carlson Pet Products, Inc.||Barrier with panels sliding parallel|
|US8720958 *||Nov 4, 2011||May 13, 2014||Carlson Pet Products, Inc.||Barrier with panels sliding parallel|
|US20040130165 *||Jan 7, 2003||Jul 8, 2004||Nurenberg Randy William||Latch device for cover member|
|US20050012342 *||Oct 10, 2003||Jan 20, 2005||Aopen Inc.||Attachment mechanism|
|US20100108622 *||Nov 5, 2009||May 6, 2010||Gabriel George S||Locking assembly|
|US20110127264 *||Jun 2, 2011||Plano Molding Company||Container assembly|
|US20110147386 *||Jun 23, 2011||Plano Molding Company||Container assembly|
|US20120235101 *||Nov 4, 2011||Sep 20, 2012||Carlson Pet Products, Inc.||Barrier with panels sliding parallel|
|DE2932998A1 *||Aug 14, 1979||Feb 28, 1980||Sture Bertil Ragnar Simme||Vorrichtung zum loesbaren befestigen flexibler teile, beispielsweise einer flexiblen abdeckung|
|DE3536157A1 *||Oct 10, 1985||Apr 23, 1987||Hatz Motoren||Device for coupling structural parts|
|DE3934663A1 *||Oct 18, 1989||Apr 25, 1991||Mann & Hummel Filter||Hakenverschluss|
|U.S. Classification||292/258, 292/DIG.380, 292/113, 292/DIG.490|
|International Classification||E05B15/16, E05C19/14|
|Cooperative Classification||Y10S292/38, E05C19/14, Y10S292/49, E05B15/1635|