Abstract A plurality of pivotally mounted members are arranged in a plane parallel to and spaced from a lapping surface and relative to the path of movement of an element so as to move the element axially and to provide a pressure pattern comprising a number of incrementally increasing and/or decreasing pressures with which the element can be maintained in engagement with the lapping surface. Each of the pivotal members is responsive to the force exerted thereagainst by a gas- or liquid-actuated plunger. With a group of such members arranged relative to the path of travel of the element, the pressure with which the element is maintained against the lapping surface can be varied to increase uniformly from one end to the other, to decrease uniformly from one end to the other, or to provide a number of variable pressures throughout the path of travel during the lapping operation. In other words, a pressure pattern can be devised for any one or a combination of material, lapping speed, element hardness, etc.
Inventors
👤 David L Bender
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 19:31
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/04; B24B37/042
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
In a device for abrading a surface of an element retained on a holder that is arranged relative to the abrading surface of a rotatable member and movable axially toward and away from said abrading surface and in a path at least a portion of which intersects said abrading surface; the improvement comprising: a plurality of independently adjustable members forming a track arranged in generally spaced, parallel relation to said portion of said path for engagement by said holder; each member being pivotally mounted along an edge thereof and operatively engaging means for establishing an independent operating pressure with which the surface of said element is maintained against said abrading surface as said holder is moved thereover; and each of said members moving said holder axially toward said abrading surface and maintaining the surface of said element against said abrading surface with a pressure independent of that of each of the other members.
Claim 2
Dependent Claim
153 words
In a device for abrading a surface of an element retained on a holder that is arranged relative to the abrading surface of a rotatable member and movable axially toward and away from said abrading surface and in a path at least a portion of which intersects said abrading surface; the improvement comprising: a plurality of independently adjustable members forming a track arranged in generally spaced, parallel relation to said portion of said path for engagement by said holder; each member being pivotally mounted along an edge thereof and operatively engaging means for establishing an independent operating pressure with which the surface of said element is maintained against said abrading surface as said holder is moved thereover; and each of said members moving said holder axially toward said abrading surface and maintaining the surface of said element against said abrading surface with a pressure independent of that of each of the other members.
Claim 3
Dependent Claim
27 words
The abrading device in accordance with claim 1 wherein said pressure means comprises a pneumatically operable plunger in engagement with said member adjacent the other edge thereof.
Claim 4
Dependent Claim
24 words
The abrading device in accordance with claim 1 including means operatively connected to each of said pressure means for establishing an independent operating pressure.