US Patent No: 4,557,076

Number of patents in Portfolio can not be more than 2000

Grinding machine for the rims of spectacle lenses

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

The machine grinds the rims of spectacle lenses in accordance with data from an electronic data memory containing the circumferential configuration of the spectacle lens. The grinding machine is controlled by a computer.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Helbrecht, Otto In den Weiden 3, D-4010 Hilden, DE 1 10

Cited Art

Patent Info (Count) # Cites Year
 
COBURN TECHNOLOGIES, INC. (1)
4,203,259 Apparatus for edging ophthalmic lenses 17 1978
 
FUJIFILM CORPORATION (1)
7,206,781 Data registration system 9 2002
 
HOYA LENS CORPORATION (1)
4,217,736 Method for automatically grinding lenses 12 1977
 
TOYODA KOKI KABUSHIKI KAISHA (1)
4,214,309 Numerical controller for controlling machining of oval workpiece 19 1978

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
COBAIN OPTICAL INDUSTRIES, INC. (1)
4,912,880 Computerized tracing/edging system 27 1988
 
COBURN OPTICAL INDUSTRIES, INC. (1)
4,674,190 Blocked lens thickness gauge 2 1985
 
INNOVATIVE RESEARCH INC. (1)
4,723,376 Apparatus for the production of an ophthalmic lens 8 1986
 
NIDEK CO., LTD. (1)
6,328,628 Eyeglass lens layout device and eyeglass lens processing apparatus having the same 13 1999
 
NIKON CORPORATION (1)
5,790,232 Spectacle lens and manufacturing method thereof 10 1995
 
SCHAUDT MASCHINENBAU GMBH (1)
4,747,236 Method for working, by metal-cutting processes, the surfaces of profiles having a non-circular contour, in particular camshafts 13 1986
 
TOYODA KOKI KABUSHIKI KAISHA (1)
4,848,038 Method for grinding a non-circular workpiece 10 1987
 
WERNICKE & CO. GMBH (1)
5,993,294 Method and spectacle lens grinding machine for shape grinding the circumferential edge of spectacle lenses and optionally for subsequently grinding a facet 6 1997
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
4,656,590 Method and apparatus for making patterns for eyeglasses 38 1984
7,533,453 E-facet optical lens 8 2005