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US3711929A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of assembling a measuring and locating system

Assignee: General Dynamics Corp
•
Filing: 1971-03-19
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Granted: 1973-01-23
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Expires: 1991-03-19
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Abstract

Abstract A method of assemblying a measuring and locating system utilizing a novel surface plate and fixtures associated therewith is disclosed. Basically, a plurality of recesses of uniform shape are formed in a surface and magnetic attraction means are positioned adjacent to the recesses. Ferromagnetic members having shapes and spacing corresponding to the shapes and spacing of the recesses are fastened to measuring and locating fixture bodies. Gages or positioning means on the fixtures are then adjusted as desired. The system is then ready for use in the dimensional measurement of workpieces, locating workpieces for automatic machining, etc.

Inventors

  • 👤 A Blakey
  • 👤 J Adams
  • 👤 J Swarts

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 17:55
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/08; B23Q3/00; B23Q3/02; B23Q3/10; B23Q3/106; B23Q3/107; B23Q3/15; B23Q3/154; B23Q3/1546; H; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0252; Y; Y10; Y10S; Y10S33/00; Y10S33/01; Y10T; Y10T29/00; Y10T29/49; Y10T29/49764; Y10T29/49771; Y10T408/00; Y10T408/03; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/308624

Claims Analysis

Total Claims: 26
Claim 1
Independent Claim 100 words
A method of assembling a measuring and locating system which comprises: a. forming a plurality of spaced recesses of substantially uniform size and shape across a plate surface; b. providing magnetic attraction means below said plate surface adjacent to each recess; c. positioning ferromagnetic support members having shapes corresponding to the shape of said recesses in selected recesses; d. positioning a measuring and locating fixture on said support members in a desired position on said surface; and e. affixing said fixture to said support members whereby said fixture may be lifted away and replaced in substantially exactly the same position.
Claim 2
Independent Claim 100 words
A method of assembling a measuring and locating system which comprises: a. forming a plurality of spaced recesses of substantially uniform size and shape across a plate surface; b. providing magnetic attraction means below said plate surface adjacent to each recess; c. positioning ferromagnetic support members having shapes corresponding to the shape of said recesses in selected recesses; d. positioning a measuring and locating fixture on said support members in a desired position on said surface; and e. affixing said fixture to said support members whereby said fixture may be lifted away and replaced in substantially exactly the same position.
Claim 3
Dependent Claim 22 words
The method according to claim 1 wherein said recesses are formed in a substantially uniform geometric pattern across a substantially planar surface.
Claim 4
Dependent Claim 35 words
The method according to claim 1 wherein said spaced recesses are formed by forming openings in said plate surface, placing inserts having recessed upper surfaces in said openings and bonding said inserts within said openings.
Claim 5
Dependent Claim 35 words
The method according to claim 3 wherein each insert is provided with a permanent magnet means below said plate surface adjacent to the recess, whereby said ferromagnetic support members are removably held in said recess.
Claim 6
Dependent Claim 24 words
The method according to claim 1 wherein said recesses are formed directly in the surface and magnetic attraction means are provided behind each recess.
Claim 7
Dependent Claim 35 words
The method according to claim 1 further including forming a clearance depression within each recess, whereby small amounts of foreign matter in the depression will not prevent a support member from seating in the recesses.
Claim 8
Dependent Claim 47 words
The method according to claim 6 wherein said recesses are formed in the surface of a relatively thin plate and each said depression is formed entirely through said plate in a direction generally perpendicular to said plate surface, whereby foreign material entering said recess can pass therethrough.
Claim 9
Dependent Claim 31 words
The method according to claim 1 including the further step of forming additional spaced openings in said surface and installing inserts therein having threaded bores adapted to receive fixture clamp bolts.
Claim 10
Independent Claim 134 words
A method of assembling a measuring and locating system which comprises: a. forming a plurality of spaced recesses of substantially uniform size and shape across a plate surface; b. providing magnetic attraction means below said plate surface adjacent to each recess; c. preparing at least one measuring and locating fixture by affixing at least one ferromagnetic support member to a fixture body, said at least one support member having a shape corresponding to said recesses, the spacing of said support members, where more than one support member is affixed to a fixture, corresponding to the spacing of said recesses; d. adjusting adjustable locating and measuring means on at least one of said at least one fixture as desired; e. positioning said fixtures on said surface with said support members in engagement with selected recesses.
Claim 11
Independent Claim 134 words
A method of assembling a measuring and locating system which comprises: a. forming a plurality of spaced recesses of substantially uniform size and shape across a plate surface; b. providing magnetic attraction means below said plate surface adjacent to each recess; c. preparing at least one measuring and locating fixture by affixing at least one ferromagnetic support member to a fixture body, said at least one support member having a shape corresponding to said recesses, the spacing of said support members, where more than one support member is affixed to a fixture, corresponding to the spacing of said recesses; d. adjusting adjustable locating and measuring means on at least one of said at least one fixture as desired; e. positioning said fixtures on said surface with said support members in engagement with selected recesses.
Claim 12
Dependent Claim 34 words
The method according to claim 9 wherein said spaced recesses are formed by forming openings in said surface, placing inserts having recessed upper surfaces in said openings and bonding said inserts within said openings.
Claim 13
Dependent Claim 22 words
The method according to claim 10 wherein said recesSes are formed in a substantially uniform geometric pattern across a substantially planar surface.
Claim 14
Dependent Claim 24 words
The method according to claim 9 wherein said recesses are formed directly in said surface and magnetic attraction means are provided behind each recess.
Claim 15
Dependent Claim 35 words
The method according to claim 9 further including forming a clearance depression within each recess, whereby small amounts of foreign matter in the depression will not prevent a support member from seating in the recesses.
Claim 16
Dependent Claim 47 words
The method according to claim 13 wherein said recesses are formed in the surface of a relatively thin plate and each said depression is formed entirely through said plate in a direction generally perpendicular to said plate surface, whereby foreign material entering said recess can pass therethrough.
Claim 17
Dependent Claim 31 words
The method according to claim 9 including the further step of forming additional spaced openings in said surface and installing inserts therein having threaded bores adapted to receive fixture clamp bolts.
Claim 18
Independent Claim 134 words
A method of assembling a measuring and locating system which comprises: a. providing a plate having a substantially planar surface; b. forming a plurality of openings in a uniform geometric pattern across said planar surface; c. providing a plurality of inserts sized to fit loosely in said openings, said inserts having recesses of uniform shape formed in one surface and containing a magnetic attraction means adjacent to said recess; d. locating said inserts in at least some of said openings; and e. positioning said inserts in an accurate geometric pattern and filling the space between inserts and opening walls with a bonding filler material; the surface of said inserts within which said recesses are formed being substantially parallel to said plate surface and from about 0.001 to about 0.2 inch below said planar surface.
Claim 19
Independent Claim 134 words
A method of assembling a measuring and locating system which comprises: a. providing a plate having a substantially planar surface; b. forming a plurality of openings in a uniform geometric pattern across said planar surface; c. providing a plurality of inserts sized to fit loosely in said openings, said inserts having recesses of uniform shape formed in one surface and containing a magnetic attraction means adjacent to said recess; d. locating said inserts in at least some of said openings; and e. positioning said inserts in an accurate geometric pattern and filling the space between inserts and opening walls with a bonding filler material; the surface of said inserts within which said recesses are formed being substantially parallel to said plate surface and from about 0.001 to about 0.2 inch below said planar surface.
Claim 20
Dependent Claim 27 words
The method according to claim 16 further including the step of securing internally threaded inserts in some of said openings spaced within the array of recessed inserts.
Claim 21
Dependent Claim 112 words
In a method of assembling a measuring system which comprises forming a plurality of spaced recesses across a plate surface, installing magnetic attraction means below said plate surface adjacent to each recess, and assembling measuring fixtures on said surface, the improvement comprising assembling said fixtures by placing at least one ferromagnetic support member in at least one of said recesses, said at least one support member having an external shape corresponding to said recesses, and securing at least one fixture to said at least one support member, whereby said at least one member supports said fixture in a desired position on said surface and is held by magnetic attraction against accidental displacement.
Claim 22
Dependent Claim 112 words
In a method of assembling a measuring system which comprises forming a plurality of spaced recesses across a plate surface, installing magnetic attraction means below said plate surface adjacent to each recess, and assembling measuring fixtures on said surface, the improvement comprising assembling said fixtures by placing at least one ferromagnetic support member in at least one of said recesses, said at least one support member having an external shape corresponding to said recesses, and securing at least one fixture to said at least one support member, whereby said at least one member supports said fixture in a desired position on said surface and is held by magnetic attraction against accidental displacement.
Claim 23
Dependent Claim 41 words
The improvement according to claim 18 wherein at least four support members are placed in recesses with no more than three members located along a single straight line, then said fixture is adhesively bonded to said at least four support members.
Claim 24
Dependent Claim 108 words
In a method of assembling a measuring system which comprises forming a plurality of spaced recesses across a plate surface, installing magnetic attraction means below said plate surface adjacent to each recess, and assembling measuring fixtures on said surface, the improvement comprising assembling said fixtures by placing a plurality of ferromagnetic support members in a plurality of selected recesses, each of said support members having an external shape corresponding to said recesses, and securing each of a plurality of fixtures to at least one of said members, whereby said fixtures are supported in a desired location on said surface and are held by magnetic attraction against accidental displacement.
Claim 25
Dependent Claim 108 words
In a method of assembling a measuring system which comprises forming a plurality of spaced recesses across a plate surface, installing magnetic attraction means below said plate surface adjacent to each recess, and assembling measuring fixtures on said surface, the improvement comprising assembling said fixtures by placing a plurality of ferromagnetic support members in a plurality of selected recesses, each of said support members having an external shape corresponding to said recesses, and securing each of a plurality of fixtures to at least one of said members, whereby said fixtures are supported in a desired location on said surface and are held by magnetic attraction against accidental displacement.
Claim 26
Dependent Claim 41 words
The improvement according to claim 20 wherein at least four support members are placed in recesses with no more than three members located along a single straight line, then said fixture is adhesively bonded to said at least four support members.

References Cited (Backward Citations)

US2381458A Cited
US2621807A Cited
US3188951A Cited
US3188078A Cited
FR1434671A Cited
US3550245A Cited
US3588989A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-23 1976-07-24 1977-01-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-23 1980-07-24 1981-01-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-23 1984-07-24 1985-01-23 $7700.00 Window Closed / Lapsed

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