Patent US4090283A successfully refreshed from Google Patents.
US4090283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hollow globular roller
Assignee: Individual
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Filing: 1977-02-03
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Granted: 1978-05-23
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Expires: 1997-02-03
Abstract
Abstract Globular rollers are provided herein. The rollers include one globular or two semi-globular segments of rigid structurally strong material. If it is formed of two semi-globular segments, one of the semi-globular segments is provided with a male flange, and the other of the semi-globular segments is provided with a female recess. The two semi-globular segments are joined at the male flange/female recess seam. Whether it is formed of one globular or two semi-globular segments, a resilient material is coated thereon, and, if necessary permanently joining the two semi-globular segments together. The roller is also provided with a pair of diametrically opposed, aligned apertures or identations disposed within a pair of diametrically opposed flattened chords of the globular rollers. The apertures or indentations are preferably provided with bearing surfaces, e.g. ball bearings or rollers bearings.
Inventors
- 👤 George Woolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:07
CPC Classifications
F; F16; F16C; F16C13/00; A; A63; A63C; A63C17/00; A63C17/22; A63C17/24; B; B23; B23P; B23P15/00; B23P15/003; F16C2316/00; F16C2316/30; Y; Y10; Y10S; Y10S29/00; Y10S29/047; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49826; Y10T29/49888; Y10T29/4998; Y10T29/49982; Y10T29/49986
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
136 words
A method for making a globular roller, comprising the steps of: impact extruding a pair of semi-globular segments of rigid structurally secure impact extrudable material, said segments being assemblable into a globular roller, one of said semi-globular segments including a flattened chord penetrated by a well recess and having an open circumferential end provided with a male flange, the other of said segments including a flattened chord penetrated by a well and having an open circumferential end provided with a female recess; assembling said two segments with the male flange of one mating with the female recess of the other at a seam to provide a globular roller assembly; and finally, applying a coating of a resilient material to the assembled semi-globular segments, thereby permanently to secure the semi-globular segments together, and providing said globular roller.
Claim 2
Independent Claim
136 words
A method for making a globular roller, comprising the steps of: impact extruding a pair of semi-globular segments of rigid structurally secure impact extrudable material, said segments being assemblable into a globular roller, one of said semi-globular segments including a flattened chord penetrated by a well recess and having an open circumferential end provided with a male flange, the other of said segments including a flattened chord penetrated by a well and having an open circumferential end provided with a female recess; assembling said two segments with the male flange of one mating with the female recess of the other at a seam to provide a globular roller assembly; and finally, applying a coating of a resilient material to the assembled semi-globular segments, thereby permanently to secure the semi-globular segments together, and providing said globular roller.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein each said well of said flattened chord is punctured by an aperture.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein each said well of said flattened chord terminates in a floor.
Claim 5
Dependent Claim
67 words
The method of claim 1 wherein, the impact extrusion is carried out by the sequential steps of allowing a slug of the rigid structurally strong material to slide down an inclined chute towards a hollow anvil of the required semi-globular shape, and applying a pressure with a plunger to said slug in order to cause the slug to be deformed into the shape of the hollow anvil.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the resilient coating over the assembled semi-globular segment is molded therearound.
References Cited (Backward Citations)
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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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |