US3758176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing pack
Assignee: BULLARD-SUNDSTRAND Inc
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Filing: 1971-11-19
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Granted: 1973-09-11
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Expires: 1991-11-19
Abstract
Abstract A bearing pack for load support of moving parts wherein a plurality of rolling elements, and more particularly roller bearings, are mounted for travel along a load zone and a return path with the load zone and a major part of the return path being defined by a body member of one-piece construction. A pair of end caps extend from the body member and each have a curved guide channel interconnecting the load zone and the return path to provide a complete circuit for the rolling elements whereby the body member may be constructed of an easily machined shape and material to provide the necessary strength in use, while the end caps of more complex shape may be made of non-machined material because of the lower strength requirements thereof.
Inventors
- 👤 D Stapley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:09
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/0614; F16C29/0616; F16C29/0619
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
A bearing pack having a cross-shaped body member with a central upright section defining upper and lower lateral guide surfaces for at least two laterally spaced circuits of rolling elements, and a lateral section extending beyond both sides of said central section intermediate the height thereof to have the lower surfaces thereof define load bearing surfaces for elements in a load zone between said bearing surfaces and an adjacent machine tool way or the like, the upper surfaces of said lateral section defining a part of a return path for said rolling elements, a pair of end caps secured one to each end of said body member and each having curved guide channels for guiding the rolling elements between the load zone and the upper return path each end cap having a pair of lateral projections, a pair of side plates having openings to receive said lateral projections, and means securing said side plates to said body member to hold the end caps in secured relation with the body member.
Claim 2
Dependent Claim
170 words
A bearing pack having a cross-shaped body member with a central upright section defining upper and lower lateral guide surfaces for at least two laterally spaced circuits of rolling elements, and a lateral section extending beyond both sides of said central section intermediate the height thereof to have the lower surfaces thereof define load bearing surfaces for elements in a load zone between said bearing surfaces and an adjacent machine tool way or the like, the upper surfaces of said lateral section defining a part of a return path for said rolling elements, a pair of end caps secured one to each end of said body member and each having curved guide channels for guiding the rolling elements between the load zone and the upper return path each end cap having a pair of lateral projections, a pair of side plates having openings to receive said lateral projections, and means securing said side plates to said body member to hold the end caps in secured relation with the body member.
Claim 3
Dependent Claim
32 words
A bearing pack as defined in claim 1 wherein said end caps are formed of a moldable or castable material or the like such as plastic and said lateral projections are half-round.
Claim 4
Dependent Claim
238 words
A bearing pack hAving a cross-shaped body member with a central upright section defining upper and lower lateral guide surfaces for at least two laterally spaced circuits of rolling elements, and a lateral section extending beyond both sides of said central section inter-mediate the height thereof to have the lower surfaces thereof define load bearing surfaces for elements in a load zone between said bearing surfaces and an adjacent machine tool way or the like, the upper surfaces of said lateral section defining a part of a return path for said rolling elements, the opposite ends of said body member being planar end faces, a pair of one-piece end caps each having a planar end face to abut and coincide with a planar end face of the body member to form continuations of said lateral and central upright sections of the body member beyond said load zone, each of said end caps having a pair of curved guide channels formed integrally therein for guiding the rolling elements between the load zone and the upper return path and defined by a part of the end cap shaped to form a continuation of said body member sections with arcuate convex surfaces extending between the load zone and the upper return path and by concave curved surfaces spaced from the convex surfaces, and retaining elements for the rolling elements secured to the body member at the top, bottom and sides thereof.
Claim 5
Dependent Claim
238 words
A bearing pack hAving a cross-shaped body member with a central upright section defining upper and lower lateral guide surfaces for at least two laterally spaced circuits of rolling elements, and a lateral section extending beyond both sides of said central section inter-mediate the height thereof to have the lower surfaces thereof define load bearing surfaces for elements in a load zone between said bearing surfaces and an adjacent machine tool way or the like, the upper surfaces of said lateral section defining a part of a return path for said rolling elements, the opposite ends of said body member being planar end faces, a pair of one-piece end caps each having a planar end face to abut and coincide with a planar end face of the body member to form continuations of said lateral and central upright sections of the body member beyond said load zone, each of said end caps having a pair of curved guide channels formed integrally therein for guiding the rolling elements between the load zone and the upper return path and defined by a part of the end cap shaped to form a continuation of said body member sections with arcuate convex surfaces extending between the load zone and the upper return path and by concave curved surfaces spaced from the convex surfaces, and retaining elements for the rolling elements secured to the body member at the top, bottom and sides thereof.
Claim 6
Dependent Claim
25 words
A bearing pack as defined in claim 3 wherein said one-piece end caps are each formed of a moldable or castable material such as plastic.
Claim 7
Dependent Claim
43 words
A bearing pack as defined in claim 4 wherein said retaining elements include side plates, lateral extensions on each of said end caps, and openings in said side plates to receive said lateral projections and secure the end caps to the body member.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |