Patent US3790233A successfully refreshed from Google Patents.
US3790233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction slide assembly
Assignee: Optical Gaging Products Inc
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Filing: 1971-11-10
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Granted: 1974-02-05
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Expires: 1991-11-10
Abstract
Abstract This antifriction slide assembly comprises two members slidable relative to one another and mounted on roller bearings which roll on the flat surfaces of diagonally opposite rods mounted in confronting grooves of the two members. Alternate rollers are disposed so that their axes are inclined in opposite directions; and all the rollers are hollow. Pre-load on the rollers is achieved by longitudinal adjustment of a wedge member that contacts the pair of rods in a groove of one member.
Inventors
- 👤 E Polidor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:33
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/12; F16C29/126; F16C29/005; F16C29/04; F16C29/041; F16C33/00; F16C33/30; F16C33/34; F16C33/58; F16C33/60; F16C33/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
323 words
An antifriction slide assembly comprising a first member having outwardly facing, longitudinally extending grooves at opposite sides thereof, a second member straddling said first member and having a pair of inwardly-facing grooves confronting said outwardly facing grooves, two elongate, parallel bearing rods disposed, respectively, in the upper and lower corners of each groove, each bearing rod being flat on its inner side, the flat surface of a rod in the upper corner of a groove being disposed diagonally opposite the flat surface of the rod in the lower corner of the other groove, a plurality of hollow, cylindrical rollers having plane end surfaces perpendicular to their axial center lines, and disposed between the four bearing rods of each pair of confronting grooves for supportingly connecting said members for rectilinear relative translation of said members, a retainer disposed between said confronting grooves and disposed longitudinally thereof and in which said rollers are rotatably mounted in longitudinally spaced relation, said rollers being disposed so that the cylindrical surface of each contacts the flat surfaces of one pair of two diagonally opposite rods in a pair of confronting grooves, so that the ends of each roller are spaced from the flat surfaces of the other pair of diagonally opposite rods in the same pair of confronting grooves, and so that the axes of alternate rollers between each pair of confronting grooves extend at an angle to each other, means for controllably adjusting the depthwise positions of the rods in one of said grooves to adjust the pre-load on the rollers, said adjusting means including a tapered gib disposed in a slot in one of said members which opens into said one groove and which extends generally in the direction of relative translation of said members, and means for controllably adjusting said gib longitudinally in said slot, said rollers being slightly flexible radially of their axes thereby to compensate for even the slightest mis-alignment in the assembly.
Claim 2
Dependent Claim
323 words
An antifriction slide assembly comprising a first member having outwardly facing, longitudinally extending grooves at opposite sides thereof, a second member straddling said first member and having a pair of inwardly-facing grooves confronting said outwardly facing grooves, two elongate, parallel bearing rods disposed, respectively, in the upper and lower corners of each groove, each bearing rod being flat on its inner side, the flat surface of a rod in the upper corner of a groove being disposed diagonally opposite the flat surface of the rod in the lower corner of the other groove, a plurality of hollow, cylindrical rollers having plane end surfaces perpendicular to their axial center lines, and disposed between the four bearing rods of each pair of confronting grooves for supportingly connecting said members for rectilinear relative translation of said members, a retainer disposed between said confronting grooves and disposed longitudinally thereof and in which said rollers are rotatably mounted in longitudinally spaced relation, said rollers being disposed so that the cylindrical surface of each contacts the flat surfaces of one pair of two diagonally opposite rods in a pair of confronting grooves, so that the ends of each roller are spaced from the flat surfaces of the other pair of diagonally opposite rods in the same pair of confronting grooves, and so that the axes of alternate rollers between each pair of confronting grooves extend at an angle to each other, means for controllably adjusting the depthwise positions of the rods in one of said grooves to adjust the pre-load on the rollers, said adjusting means including a tapered gib disposed in a slot in one of said members which opens into said one groove and which extends generally in the direction of relative translation of said members, and means for controllably adjusting said gib longitudinally in said slot, said rollers being slightly flexible radially of their axes thereby to compensate for even the slightest mis-alignment in the assembly.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |