While this design does afford flexibility, it does not enable accurate measurement of a non-circular ring. ![]() Its cross-sectional design contemplates a series of concentric circles, one wrapped around another, which yield to the inner surface of a ring so that the proper size can be ascertained. ![]() The Clopton Ring Gauge, however, falls short of its own objectives. In principle, the Clopton Ring Gauge was intended to yield and conform itself to a ring brought in frictional contact with it and to return to its initial condition when the ring was withdrawn. The body was provided with a scale indicating the different sizes of rings to be measured. The Clopton Ring Gauge was constructed from a single sheet of flexible elastic material and wrapped upon itself to provide a hollow, cone-shaped body. 467,382 issued to Mortimer L, Clopton (the "Clopton Ring Gauge"). An attempt to address these difficulties may be seen in U.S. Even if a ring was perfectly circular when sold imperfections are bound to occur with continued wear since the human finger is generally not circular itself. Most rings actually sold by jewelers are not preferably circular but instead have a flattened portion at the set of the ring. Because they are made of inflexible or non-yieldable material, these devices are not capable of conforming to out-of-round ring shapes. The devices heretofore described cannot accurately measure the size of a non-circular ring. Y10T29/21- Finger-ring forming or sizing.Y10T- TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION.Y10- TECHNICAL SUBJECTS COVERED BY FORMER USPC.Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.G01B3/30- Bars, blocks, or strips in which the distance between a pair of faces is fixed, although it may be preadjustable, e.g.G01B3/46- Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable. ![]() G01B3/00- Instruments as specified in the subgroups and characterised by the use of mechanical measuring means.G01B- MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS.238000006011 modification reaction Methods 0.000 description 2.229920002457 flexible plastic Polymers 0.000 claims description 10.238000004513 sizing Methods 0.000 claims abstract description 16.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Keener Robert L filed Critical Keener Robert L Priority to US07/467,186 priority Critical patent/US4964222A/en Application granted granted Critical Publication of US4964222A publication Critical patent/US4964222A/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Keener Original Assignee Keener Robert L Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/467,186 Inventor Robert L. Download PDF Info Publication number US4964222A US4964222A US07/467,186 US46718690A US4964222A US 4964222 A US4964222 A US 4964222A US 46718690 A US46718690 A US 46718690A US 4964222 A US4964222 A US 4964222A Authority US United States Prior art keywords ring stick sizer rod surface portions Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |