Patent US3577642A successfully refreshed from Google Patents.
US3577642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In-process workpiece gaging apparatus
Assignee: Individual
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Filing: 1968-02-12
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Granted: 1971-05-04
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Expires: 1988-02-12
Abstract
Abstract There is disclosed a system for gauging the dimensions of a machined surface of a workpiece being machined by a lathe or similar device, while it is being machined. To accomplish this, a machine tool having the cutting edge has affixed thereto a feeler gauge in such position as to encounter the workpiece in a region where it has just been machined. This gauge then moves with the cutting tool over the newly worked surface to give an indication of any variations from tolerance while the work is in process. A pneumatic gauge system is disclosed with particular feeler gauge structure to permit it to be used with various size parts.
Inventors
- 👤 Joseph V Tripoli
- 👤 John J Caligiuri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:27
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/08; Y; Y10; Y10S; Y10S33/00; Y10S33/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
Apparatus for gauging pneumatically the dimensions of a workpiece being machined comprising in combination, a structure holding a first member for movement relative thereto to attain a position adjacent a workpiece representing a dimension of said workpiece and a second member for movement relative thereto along with said first member to a position where it is frictionally held to identify at least one workpiece dimension, pneumatic convergence means passing an airpath between said members such as to modify the flow of air as the members change relative positions in response to workpiece dimensional variations and coupling means for presenting the airflow path to a sensor for indicating variations of workpiece size as a function of the modifications of flow of air by relative movement of the two said members and the workpiece.
Claim 2
Dependent Claim
132 words
Apparatus for gauging pneumatically the dimensions of a workpiece being machined comprising in combination, a structure holding a first member for movement relative thereto to attain a position adjacent a workpiece representing a dimension of said workpiece and a second member for movement relative thereto along with said first member to a position where it is frictionally held to identify at least one workpiece dimension, pneumatic convergence means passing an airpath between said members such as to modify the flow of air as the members change relative positions in response to workpiece dimensional variations and coupling means for presenting the airflow path to a sensor for indicating variations of workpiece size as a function of the modifications of flow of air by relative movement of the two said members and the workpiece.
Claim 3
Independent Claim
123 words
A system for displaying indications of the dimensions of a workpiece in the process of being machined, comprising in combination, means for sensing at least one dimension of a workpiece being machined, first pneumatic indicating means coupled with said sensing means for indicating a first order of readings of said dimension, pneumatic amplifying means coupled with said sensing means to provide pneumatic amplifying means coupled with said sensing means to provide pneumatic signals representing variations of workpiece dimensions, second pneumatic indicating means responsive to said pneumatic signals for indicating fine readings of variations of said dimension of said workpiece, and means actuating said second pneumatic indicating means when the workpiece dimensions as indicated by said first pneumatic indicating means reach a predetermined dimension.
Claim 4
Independent Claim
123 words
A system for displaying indications of the dimensions of a workpiece in the process of being machined, comprising in combination, means for sensing at least one dimension of a workpiece being machined, first pneumatic indicating means coupled with said sensing means for indicating a first order of readings of said dimension, pneumatic amplifying means coupled with said sensing means to provide pneumatic amplifying means coupled with said sensing means to provide pneumatic signals representing variations of workpiece dimensions, second pneumatic indicating means responsive to said pneumatic signals for indicating fine readings of variations of said dimension of said workpiece, and means actuating said second pneumatic indicating means when the workpiece dimensions as indicated by said first pneumatic indicating means reach a predetermined dimension.
Claim 5
Dependent Claim
76 words
A system as defined in claim 2, including third pneumatic indicating means, and structure actuating said third means comprising a member movable to a semistable position determined by said means sensing a maximum dimension of the workpiece being machined, and airflow convergence means to said third pneumatic indicating means including restrictive means changing airflow dependent upon the position of said structure in the semistable position relative to changes in dimension of the workpiece from said maximum.
Claim 6
Dependent Claim
73 words
A system as defined in claim 3, wherein the pneumatic amplifying means comprises an E-shaped frame, a diaphragm operable from said means sensing the workpiece position, a relay post movable within the outer arms of the E-shaped frame by said diaphragm, and pneumatic conveyance channels in one of said outer arms defining an airflow path with flow modified by movement of said relay post, comprising said means actuating the second pneumatic indicating means.
Claim 7
Dependent Claim
62 words
A system as defined in claim 4, wherein a movable rod has means frictionally holding it in a semistable position in the middle arm of said frame, means moving the rod against the holding means responsive to movements of said relay post, and airflow path means disposed for modifying airflow as a function of relative displacements of said post and said rod.
Claim 8
Dependent Claim
111 words
Apparatus for indicating the dimensions of a workpiece being machined comprising a pneumatic system having a frame supporting a diaphragm actuable by changes of airflow, a relay member movable on said frame by the diaphragm within two limiting positions, first airflow path means passing air as a function of the relay member positioned within said two limits, a movable member frictionally held in a semistable position on said frame means moving the movable member frictionally to a semistable position on said frame defined by the position of the relay member, and second airflow path means passing air as a function of the difference in position between said relay and movable members.
Claim 9
Dependent Claim
111 words
Apparatus for indicating the dimensions of a workpiece being machined comprising a pneumatic system having a frame supporting a diaphragm actuable by changes of airflow, a relay member movable on said frame by the diaphragm within two limiting positions, first airflow path means passing air as a function of the relay member positioned within said two limits, a movable member frictionally held in a semistable position on said frame means moving the movable member frictionally to a semistable position on said frame defined by the position of the relay member, and second airflow path means passing air as a function of the difference in position between said relay and movable members.
References Cited (Backward Citations)
US2691827A
Cited
US3084445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |