The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 1984
Filed:
Apr. 25, 1983
Evan A Edwards, Pittsford, NY (US);
Other;
Abstract
A photographic still camera film system 10 uses a paper backed film strip 11 wound in a supply coil 20 with a leading end of the paper backing 12 attached to a take-up spindle 31 in a take-up container 30. A pair of axially interconnected end flanges 21 engage the ends of supply coil 20 with resilient material 22 carried on their inner faces. Resilient material 22 keeps the convolutions of supply coil 20 light tight. A rotatable hub supported on flanges 21 engages the inside of supply coil 20 to allow the supply coil to rotate relative to the flanges as the supply coil is unwound. The frictional engagement of resilient material 22 with the ends of supply coil 20 effectively prevents clock springing of the supply coil as it is unwound. A gear 46 arranged on take-up container 30 turns take-up spindle 31 to advance paper backed film strip 11 from supply coil 20 to take-up container 30.