US3797897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller bearing
Assignee: INA Waelzlager Schaeffler OHG
•
Filing: 1972-12-29
•
Granted: 1974-03-19
•
Expires: 1992-12-29
Abstract
Abstract Novel roller bearing for the longitudinally moveable mounting of parts wherein rollers of the bearing move into and out of a slot or space between two races arranged parallel to each other.
Inventors
- 👤 G Schaeffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:14
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/0614; F16C29/0616; F16C29/0619; F16C29/0602; F16C29/0604; F16C33/00; F16C33/30; F16C33/46; F16C33/50; F16C33/506; F16C33/58
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
A roller bearing for the longitudinally moveable mounting of two elements comprising two longitudinally moveable elements having a space therebetween and a race on each of their confronting surfaces, a plurality of rollers entering and exiting in said space and one of said elements being provided in the entrance and exit zones with wedge-shaped shallow recesses in the race of the element to provide elastic equalization zones at the entrance and exit zones, said recesses having an area approximately equal to one roller spacing.
Claim 2
Dependent Claim
84 words
A roller bearing for the longitudinally moveable mounting of two elements comprising two longitudinally moveable elements having a space therebetween and a race on each of their confronting surfaces, a plurality of rollers entering and exiting in said space and one of said elements being provided in the entrance and exit zones with wedge-shaped shallow recesses in the race of the element to provide elastic equalization zones at the entrance and exit zones, said recesses having an area approximately equal to one roller spacing.
Claim 3
Dependent Claim
16 words
A roller bearing of claim 1 wherein the recesses are provided with points facing each other.
Claim 4
Dependent Claim
22 words
A roller bearing of claim 1 wherein the maximum width of the recesses is slightly less than the length of the rollers.
Claim 5
Dependent Claim
43 words
A roller bearing of claim 1 wherein the enTrance and exit area of race section is provided with guide strips protruding beyond the race by at least one half a roller diameter which cooperate with the roller ends to provide axial alignment thereof.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |