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The above calculations have been carried out for a rod of circular cross section, a rod of square cross section and a rod of rectangular cross section with a ratio of the sides of 1 to 4, and the long and short sides disposed in the manner of the present invention, all having the same cross sectional areas. Conduct a patent search relevant to your invention or product. Limitations should also be imposed on length in order that the fan-like portion of the coil can spread over the semi-circular axial are without causing permanent deformation, or without making it impossible to hold the turns in position in the absence of external force, or at the other extreme without falling side-ways and losing control. The property of the coil in transferring turns from a solid pile at the high end to a solid pile at the low end of a coil bent in an axial semicircle, Whether held in the hands or resting on an amusement platform having lower landing areas, is due to the gravitational force imparted to the coil. Find out if your invention is unique or if other inventors have filed patent applications that are considered to be prior art. The article provides the 7 tips to do Google patents advanced search to get the most relevant and faster prior art results in a short time. In my opinion, this tool does not have a very good user interface, and it’s not my favorite place to search, but since this is the advanced guide, I figured I owed it to you. Search by Attorney Docket Number - An Attorney Docket Number is a Reference text of up to 25 alphanumeric characters that is used to identify a patent application. For a square or rectangular cross section the deflection is: T Bbc'G wherein b=the long side of the rectangle c==the short side of the rectangle, or the dimension in the direction of the force. 691,981 19 Claims. As shown in Figures 1 and 2, the helical spring toy l5 has its individual turns lli made up of spring stock having a radial cross sectional dimension or width l1 and an axial cross sectional dimension or thickness l8. The effect may be accentuated by the turns in solid color or variegated designs. Google Patent search is a big improvement over what the United States Patent and Trademark Office offers because many patents are not text-searchable there, plus many patent researchers find Google Patents to be easier and more thorough. In 9 the amusement platform is shown in central vertical section. Thus by successively elevating one hand or the other, the turns of the coil move back and forth across the fan portion 26 and successively build up atone or the other end of the coil, with production of very interesting and attractive effects. Search by Attorney Docket Number - An Attorney Docket Number is a Reference text of up to 25 alphanumeric characters that is used to identify a patent application. US2415012A US691981A US69198146A US2415012A US 2415012 A US2415012 A US 2415012A US 691981 A US691981 A US 691981A US 69198146 A US69198146 A US 69198146A US 2415012 A US2415012 A US 2415012A Authority US United States Prior art keywords coil spring turns dimension force Prior art date 1945-11-01 Legal status (The legal status is an assumption and is not a legal … Between the positions of Figures 3 and 4, the relative elevation of the end 22 with respect to the end 23 has increased, and turns of the coil have been transferred from the solid pile 24 to the solid pile 25 in a very entertaining manner, while retaining the fan-like intermediate coils 26. The method of operating an amusement device comprising a helical spring having substantially no compression or tension between turns in closed position when no external force 11 is acting, and having a radial cr'oss' sectional dimension of between 1.1 and 10 times the axial dimension of the coil section, having an outside diameter of coil between land 100 times the radial dimension of the coil section, and having a solid heightbetween and 5 times the diameter, which comprises bending the coil into an axial semi-circle and alternately raising and lowering the respective ends of the coil to transfer turns bodily from one end to the other for 1 the amusement of an observer. Search for published patent applications and registered patents using the Intellectual Property Office’s: patent information and document service (Ipsum) you sometimes cannot access the latest granted patents or published patent applications). You may email questions about searching patent assignments to You have to first know what the patent number is which is typically conspicuously placed on a commercial product or its packaging. Subject: US Patent number search Category: Miscellaneous Asked by: ammon-ga List Price: $20.00: Posted: 27 Jan 2006 06:10 PST Expires: 26 Feb 2006 06:10 PST Question ID: 438276 7, A further purpose is to design a helical spring toy of essentially low natural frequency, suitably between and 100 cycles per minute, having substantially no compression between turns in closed position when no external force is acting, and having dimensions and proportions which permit manual handling. Figures 3, 4, and 5 are side elevations partly in perspective showing successive steps in manipulation of the toy by the hands. This is usually when the same or very similar patent is filed in more than one country.
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