Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
134 words
A lens block comprising: a generally circular body portion having a generally circular mounting face for attachment to a lens blank surface, mounting means extending outwardly from said body portion on the opposite side thereof from said mounting face for mounting said lens block in a chuck, and said mounting means including a substantially flat tab extending through the longitudinal center of said body portion with said tab defining alignment means for alignment with a base line on a lens blank, with said mounting means further including a protrusion extending perpendicularly away from said tab at the longitudinal center of said body portion, whereby said alignment means provides a reference when received in a chuck for orientation of the lens base line to a desired position for grinding or polishing of the lens blank.
Claim 2
Dependent Claim
134 words
A lens block comprising: a generally circular body portion having a generally circular mounting face for attachment to a lens blank surface, mounting means extending outwardly from said body portion on the opposite side thereof from said mounting face for mounting said lens block in a chuck, and said mounting means including a substantially flat tab extending through the longitudinal center of said body portion with said tab defining alignment means for alignment with a base line on a lens blank, with said mounting means further including a protrusion extending perpendicularly away from said tab at the longitudinal center of said body portion, whereby said alignment means provides a reference when received in a chuck for orientation of the lens base line to a desired position for grinding or polishing of the lens blank.
Claim 3
Dependent Claim
24 words
The lens block as defined in claim 1 wherein said protrusion extends outwardly from said body portion a distance substantially less than said tab.
Claim 4
Dependent Claim
17 words
The lens block as defined in claim 1 wherein said mounting means is generally T-shaped in cross-section.
Claim 5
Dependent Claim
41 words
The lens block as defined in claim 3 wherein said T-shaped cross-section includes a flat tab and a protrusion extending perpendicularly therefrom, and said body portion including a longitudinal axis extending through said tab at the intersection thereof with said protrusion.
Claim 6
Dependent Claim
24 words
The lens block as defined in claim 4 wherein said protrusion extends outwardly from said body portion a distance substantially less than said tab.
Claim 7
Dependent Claim
61 words
A lens block for mounting lens blanks comprising: a substantially circular body portion having a peripheral size not greater than the peripheral size of a finished lens, said body portion having a mounting face for attachment to a lens blank, and a generally T-shaped mounting projection extending outwardly from said body portion on the opposite side thereof from said mounting face.
Claim 8
Dependent Claim
61 words
A lens block for mounting lens blanks comprising: a substantially circular body portion having a peripheral size not greater than the peripheral size of a finished lens, said body portion having a mounting face for attachment to a lens blank, and a generally T-shaped mounting projection extending outwardly from said body portion on the opposite side thereof from said mounting face.
Claim 9
Dependent Claim
43 words
The lens block as defined in claim 6 wherein said mounting projection includes a substantially flat tab located substantially on a diametral line of said body portion and a protrusion located on a radius line from the longitudinal center of said body portion.
Claim 10
Dependent Claim
26 words
The lens block as defined in claim 6 wherein said tab extends substantially equal distances in opposite directions from the longitudinal center of said body portion.
Claim 11
Dependent Claim
24 words
The lens block as defined in claim 8 wherein said protrusion extends outwardly from said body portion a distance substantially less than said tab.
Claim 12
Dependent Claim
18 words
The lens block as defined in claim 6 including a groove in said mounting face for receiving adhesive.
Claim 13
Dependent Claim
27 words
The lens block as defined in claim 10 wherein said groove is generally X-shaped and the intersection thereof passes through the longitudinal center of said body portion.