US3955857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball box
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1974-12-06
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Granted: 1976-05-11
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Expires: 1994-12-06
Abstract
Abstract A ball box construction including a cage for guiding several continuous ball races along a loaded zone and a load-free zone, the cage being provided with a plurality of inserts formed as metal clips each having a loaded zone race portion and an unloaded zone race portion, the two portions made integral at a respective end thereof by a connecting piece.
Inventors
- 👤 Rainer Schurger
- 👤 Lothar Walter
- 👤 Erich Burkl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:57
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/068; F16C29/0683; F16C29/0685; F16C29/069
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
149 words
A ball box construction, comprising a cage for the guidance of balls of several continuous ball races, a plurality of balls, and a plurality of steel race inserts having first and second races formed therein and assembled in said cage, said balls projecting radially inward from the cage in the zone under load, said race inserts being positioned with their first races radially outward of the balls in the zone under load, whereby said balls roll on said first races of said steel race inserts in an axial direction, each race in the zone under load being connected to a return channel in the load-free zone of the cage by reversing zones, each return channel being defined in a radially inward direction by a second race of a race insert, said race inserts comprising steel clips having connecting pieces at one face inter-connecting the respective first and second races.
Claim 2
Dependent Claim
149 words
A ball box construction, comprising a cage for the guidance of balls of several continuous ball races, a plurality of balls, and a plurality of steel race inserts having first and second races formed therein and assembled in said cage, said balls projecting radially inward from the cage in the zone under load, said race inserts being positioned with their first races radially outward of the balls in the zone under load, whereby said balls roll on said first races of said steel race inserts in an axial direction, each race in the zone under load being connected to a return channel in the load-free zone of the cage by reversing zones, each return channel being defined in a radially inward direction by a second race of a race insert, said race inserts comprising steel clips having connecting pieces at one face inter-connecting the respective first and second races.
Claim 3
Dependent Claim
17 words
The ball box of claim 1, wherein the reversing zone races are formed in said steel clip.
Claim 4
Dependent Claim
42 words
The ball box of claim 1, wherein said steel clip is inserted into recesses formed between first and second cross-pieces of said cage, said cage being formed as a ridge cage, and said connecting piece embracing the free ends of said cross-pieces.
Claim 5
Dependent Claim
23 words
The ball box of claim 3, wherein said free ends of said cross-pieces are attached to said connecting pieces by means of pegs.
Claim 6
Dependent Claim
25 words
The ball box of claim 3, wherein the free ends of said steel clips are axially fixed to said cage cross-pieces by means of protrusions.
Claim 7
Dependent Claim
47 words
The ball box of claim 1, wherein said steel clips, in the region of said connecting pieces, are connected to each other by means of projections on the longitudinal side thereof which engage with corresponding grooves of the adjacent connecting piece for the purpose of radial fixation.
Claim 8
Dependent Claim
115 words
A ball box construction comprising a cage for guiding several continuous ball races along a loaded zone and a load-free zone along a first race and second race, respectively, and a return path along a return race joining said first and second races, and a plurality of elongated metal inserts, said inserts each having a loaded zone race formed on a first portion thereof, an unloaded zone race formed on a second portion thereof and a connecting portion joining said first and second portions, each of said portions further including a return race formed thereon, said elongated metal inserts being bent over in a clip shape and inserted into said cage at spaced circumferential intervals.
Claim 9
Dependent Claim
115 words
A ball box construction comprising a cage for guiding several continuous ball races along a loaded zone and a load-free zone along a first race and second race, respectively, and a return path along a return race joining said first and second races, and a plurality of elongated metal inserts, said inserts each having a loaded zone race formed on a first portion thereof, an unloaded zone race formed on a second portion thereof and a connecting portion joining said first and second portions, each of said portions further including a return race formed thereon, said elongated metal inserts being bent over in a clip shape and inserted into said cage at spaced circumferential intervals.
Claim 10
Dependent Claim
63 words
The ball box of claim 7 wherein said cage includes a plurality of ridges formed along the length thereof and defining and separating pluralities of recesses formed in said cage for respective ball races, said metal inserts being inserted into a respective recess such that each said connecting portion engages a free end of a crosspiece defined by an end of said ridge.
Claim 11
Dependent Claim
23 words
The ball box of claim 8, wherein said free ends of said cross-pieces are attached to said connecting pieces by means of pegs.
Claim 12
Dependent Claim
25 words
The ball box of claim 8, wherein the free ends of said steel clips are axially fixed to said cage cross-pieces by means of protrusions.
Claim 13
Dependent Claim
47 words
The ball box of claim 8, wherein said steel clips, in the region of said connecting pieces, are connected to each other by means of projections on the longitudinal side thereof which engage with corresponding grooves of the adjacent connecting piece for the purpose of radial fixation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |