Patent US3646685A successfully refreshed from Google Patents.
US3646685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaging head for pneumatic bore gaging devices
Assignee: ETRONIC CORP
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Filing: 1969-07-10
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Granted: 1972-03-07
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Expires: 1989-07-10
Abstract
Abstract A gaging head having a central bore to permit the passage of pressurized air therethrough and being connected by passages to opposite longitudinal surface slots provided on the gaging head. A feeler blade is carried in each of the slots and is adapted to contact the internal surface of the bore in the workpiece upon introduction of pressurized air into the gaging head. The outer ends of the feeler blades are mounted in the gage head in a manner which permits only limited outward movement. Pins are fitted into the outer end of the feeler blades which pins extend into channels provided in the longitudinal slots. The movement of the feeler blade assembly is limited by the distance the pins can move in the channels.
Inventors
- 👤 Walter E Goodenough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:40
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/08; G01B13/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
277 words
In combination with a pneumatic gaging device for measurement of internal surfaces of a workpiece, a gaging head assembly comprising: a cylindrical body having a central bore in communication with a source of pressurized fluid, said cylindrical body being provided with at least one longitudinal slot in its periphery, said slot being open at least at one end of said body, said central bore having an exit passage intersecting said longitudinal slot, a feeler blade assembly positioned in said slot and rigidly secured therein at one end, the other end of said feeler blade assembly having a surface normally closing said exit passage, a block insert on said feeler blade assembly opposite said surface adapted for contact with said internal surface of said workpiece, said feeler blade assembly being adapted to flex radially outwardly beyond the periphery of said cylindrical body upon introduction of pressurized fluid through said central bore to vary the degree of opening of said exit passage to provide a restricted fluid escape flow therethrough corresponding to the degree of opening of said exit passage, and means carried at the free end of said feeler blade assembly to limit outward movement thereof, said means comprising a recess extending laterally from each side of said longitudinal slot and coextensive with said longitudinal slot up to and including said open end and means extending from the free end of said feeler blade and into said recess comprising a pin secured within the other end of said feeler blade assembly and extending outwardly thereof to provide opposite arbor means for extension into said recess to prevent said feeler blade assembly from being dislodged from said longitudinal slot.
Claim 2
Dependent Claim
277 words
In combination with a pneumatic gaging device for measurement of internal surfaces of a workpiece, a gaging head assembly comprising: a cylindrical body having a central bore in communication with a source of pressurized fluid, said cylindrical body being provided with at least one longitudinal slot in its periphery, said slot being open at least at one end of said body, said central bore having an exit passage intersecting said longitudinal slot, a feeler blade assembly positioned in said slot and rigidly secured therein at one end, the other end of said feeler blade assembly having a surface normally closing said exit passage, a block insert on said feeler blade assembly opposite said surface adapted for contact with said internal surface of said workpiece, said feeler blade assembly being adapted to flex radially outwardly beyond the periphery of said cylindrical body upon introduction of pressurized fluid through said central bore to vary the degree of opening of said exit passage to provide a restricted fluid escape flow therethrough corresponding to the degree of opening of said exit passage, and means carried at the free end of said feeler blade assembly to limit outward movement thereof, said means comprising a recess extending laterally from each side of said longitudinal slot and coextensive with said longitudinal slot up to and including said open end and means extending from the free end of said feeler blade and into said recess comprising a pin secured within the other end of said feeler blade assembly and extending outwardly thereof to provide opposite arbor means for extension into said recess to prevent said feeler blade assembly from being dislodged from said longitudinal slot.
Claim 3
Dependent Claim
22 words
In the combination as defined in claim 1, said recess being of a width to permit limited radial movement of said arbors.
Claim 4
Dependent Claim
55 words
In the combination as defined in claim 1, in which said feeler blade assembly is provided with a portion of reduced cross section adjacent said rigidly secured end to permit flexing of said other end of said feeler blade in cantilever fashion upon introduction of pressurized fluid into said central bore of said cylindrical body.
Claim 5
Dependent Claim
255 words
A gaging head assembly for a pneumatic gaging device for measuring the size of an opening in a workpiece, said assembly comprising: a probe having a body portion adapted for insertion into said opening and provided with at least one longitudinal slot in the periphery thereof and opening to at least one end of said body portion; a feeler blade positioned in said slot and having one end mounted to said body portion, the other end of said feeler blade being a free end; means for introduction of pressurized fluid into said probe, said means including a fluid escape passage in the path of the free end of the feeler blade to permit said pressurized fluid to exert a force of said free end of said feeler blade to move said free end of said feeler blade outwardly to thereby open said fluid escape passage and permit a restricted flow of fluid therethrough; and means providing engagement between the free end of said feeler blade and said body and limiting outward movement thereof, said means comprising a recess extending laterally from and coextensive with said longitudinal slot; up to and including said open end of said longitudinal slot; and means carried by and extending from the free end of said feeler blade and into said recess, comprising a pin secured within said free end of said feeler blade and extending outwardly thereof to provide opposite arbor means for extension into said recess to thereby prevent said feeler blade from being dislodged from said longitudinal slot.
Claim 6
Dependent Claim
255 words
A gaging head assembly for a pneumatic gaging device for measuring the size of an opening in a workpiece, said assembly comprising: a probe having a body portion adapted for insertion into said opening and provided with at least one longitudinal slot in the periphery thereof and opening to at least one end of said body portion; a feeler blade positioned in said slot and having one end mounted to said body portion, the other end of said feeler blade being a free end; means for introduction of pressurized fluid into said probe, said means including a fluid escape passage in the path of the free end of the feeler blade to permit said pressurized fluid to exert a force of said free end of said feeler blade to move said free end of said feeler blade outwardly to thereby open said fluid escape passage and permit a restricted flow of fluid therethrough; and means providing engagement between the free end of said feeler blade and said body and limiting outward movement thereof, said means comprising a recess extending laterally from and coextensive with said longitudinal slot; up to and including said open end of said longitudinal slot; and means carried by and extending from the free end of said feeler blade and into said recess, comprising a pin secured within said free end of said feeler blade and extending outwardly thereof to provide opposite arbor means for extension into said recess to thereby prevent said feeler blade from being dislodged from said longitudinal slot.
Claim 7
Dependent Claim
77 words
A gaging head assembly as defined in claim 4, further providing a second longitudinal slot disposed diametrically opposite the first-mentioned slot, said second slot also having a feeler blade poSitioned therein, a fluid escape passage connected to said fluid introduction means, an opening connected with the fluid escape passage and in the path of the free end of the second-mentioned feeler blade, and means limiting outward movement of the free end of said second mentioned feeler blade.
Claim 8
Dependent Claim
85 words
A gaging head assembly as defined in claim 5, and in which said limiting means comprises a recess extending laterally from and coextensive with said second slot, means carried by and extending through the free end of said second-mentioned feeler blade and into said second-mentioned recess, comprising a pin secured within said free end of said feeler blade and extending outwardly thereof to provide opposite arbor means for extension into said recess to thereby prevent said feeler blade from being dislodged from said longitudinal slot.
Claim 9
Dependent Claim
63 words
In the gaging head assembly as defined in claim 4, in which said free end of said feeler blade is provided with an insert adapted for contact with the surface of said opening in said workpiece, said insert having an outer surface normally coinciding with the periphery of said probe when said feeler blade is in contact with the bottom of said slot.
Claim 10
Dependent Claim
29 words
In the gaging head assembly as defined in claim 4, said feeler blade comprising a portion of reduced cross section adjacent the rigidly secured end of said feeler blade.
Claim 11
Dependent Claim
78 words
In the gaging head assembly as defined in claim 4, said means for introduction of pressurized fluid into said probe comprising a central bore within said probe in communication with a source of pressurized fluid, said escape passage being connected to said bore and opening into said longitudinal slot, said free end of said feeler blade having a flat surface extending across said opening and normally abutting upon the bottom of said slot to thereby close said opening.
References Cited (Backward Citations)
US2590170A
Cited
US2623294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |