US3887960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft bushing to prevent soil migration
Assignee: General Electric Co
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Filing: 1974-02-01
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Granted: 1975-06-10
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Expires: 1994-02-01
Abstract
Abstract The shaft of a control device is adapted to extend through an oversized opening in a cover plate, and misalignment may occur. A shaft bushing of the present invention is mounted on the shaft so as to substantially seal the opening and prevent the migration of soil through the opening, regardless of the misalignment. The bushing is a two-part bushing which is assembled from the opposite sides of the cover plate through the said opening, and the two parts interlock into a unitary structure to seal the opening.
Inventors
- 👤 George R Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:55
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; F; F24; F24C; F24C7/00; F24C7/08; F24C7/082; G05G25/00; G05G25/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
A rigid supporting panel having a shaft bushing adjustably mounted in an oversized opening in the panel, said bushing comprising a first member that is larger than the said opening and has an oversized central bore adapted to slip freely over a shaft, said shaft being adapted to be inserted through the said panel opening, and a second interlocking member also being larger than the said panel opening and having a central bore adapted to slip closely over the said shaft, said second member having fastening means engagable in the said oversized bore of the first member and held therewith so that the said opening in the supporting panel is substantially closed by the combined shaft and bushing which extend through the said opening, said bushing being loosely fitted within the said oversized panel opening so as to be capable of lateral adjustment within the plane of the said opening.
Claim 2
Dependent Claim
150 words
A rigid supporting panel having a shaft bushing adjustably mounted in an oversized opening in the panel, said bushing comprising a first member that is larger than the said opening and has an oversized central bore adapted to slip freely over a shaft, said shaft being adapted to be inserted through the said panel opening, and a second interlocking member also being larger than the said panel opening and having a central bore adapted to slip closely over the said shaft, said second member having fastening means engagable in the said oversized bore of the first member and held therewith so that the said opening in the supporting panel is substantially closed by the combined shaft and bushing which extend through the said opening, said bushing being loosely fitted within the said oversized panel opening so as to be capable of lateral adjustment within the plane of the said opening.
Claim 3
Dependent Claim
100 words
A supporting panel and shaft bushing as recited in claim 1 wherein the said first member is a washer-like member and the second interlocking member is a spool-like member having a tubular portion which is adapted to fit over a shaft and a flange portion at one end of the tube which corresponds to the said washer-like member, said tubular portion having a resilient tapered formation at the end opposite the said flange, said tapered portion being adapted to slip through the said oversized central bore in the first member and become locked therewith to form a complete spool 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) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |