US4157225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slotted shaft adapter
Assignee: Individual
•
Filing: 1978-03-17
•
Granted: 1979-06-05
•
Expires: 1998-03-17
Abstract
Abstract A shaft adapter for a fan motor, and the like, has an elongated configuration with a shaft receiving socket provided in at least one end of the adapter. By cutting away at least a portion of the end of the adapter provided with the socket so as to form a flat portion communicating with the socket and form a flat portion defining a slot, the shaft adapter can be employed with shafts and fan blade hubs provided with flats, set screws, keys, and the like.
Inventors
- 👤 Fred Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:22
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F04; F04D; F04D29/00; F04D29/26; F04D29/263; Y; Y10; Y10T; Y10T403/00; Y10T403/51; Y10T403/57; Y10T403/5706
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
131 words
A shaft adapter for fan motors, comprising an elongated member having a pair of spaced ends, a socket provided in one of the ends, with the elongated member having a flat portion provided on the one of the ends, the flat portion communicating with the socket and forming a slot therewith, the elongated member having a circular cross section at the other of the ends which circular cross section extends longitudinally between that end and the flat portion, and the socket extending entirely through the elongated member between the ends thereof, the I.D. of the slotted section of the socket being slightly larger than the I.D. of the enclosed section of the socket, thereby enabling the slotted section to convert the basic shaft O.D. to fit more than one bore size.
Claim 2
Dependent Claim
131 words
A shaft adapter for fan motors, comprising an elongated member having a pair of spaced ends, a socket provided in one of the ends, with the elongated member having a flat portion provided on the one of the ends, the flat portion communicating with the socket and forming a slot therewith, the elongated member having a circular cross section at the other of the ends which circular cross section extends longitudinally between that end and the flat portion, and the socket extending entirely through the elongated member between the ends thereof, the I.D. of the slotted section of the socket being slightly larger than the I.D. of the enclosed section of the socket, thereby enabling the slotted section to convert the basic shaft O.D. to fit more than one bore size.
Claim 3
Dependent Claim
33 words
A structure as defined in claim 1, wherein a web is disposed spanning the socket immediately adjacent the one of the ends of the elongated member for partially defining and closing the slot.
Claim 4
Dependent Claim
80 words
In combination with a fan motor having a shaft and with a fan blade, a shaft adapter for mounting the fan blade on the shaft of the fan motor, the shaft adapter comprising an elongated member having a pair of spaced ends, a socket provided in one of the ends of the elongated member, with the elongated member having a flat portion provided on the one of the ends, the flat portion intersecting the socket and forming a slot therewith.
Claim 5
Dependent Claim
80 words
In combination with a fan motor having a shaft and with a fan blade, a shaft adapter for mounting the fan blade on the shaft of the fan motor, the shaft adapter comprising an elongated member having a pair of spaced ends, a socket provided in one of the ends of the elongated member, with the elongated member having a flat portion provided on the one of the ends, the flat portion intersecting the socket and forming a slot therewith.
Claim 6
Dependent Claim
48 words
A structure as defined in claim 3, wherein the elongated member has a circular cross section at the other of the ends which circular cross section extends longitudinally between that end and the flat portion, and the socket extending entirely through the elongated member between the ends thereof.
Claim 7
Dependent Claim
33 words
A structure as defined in claim 4, wherein a web is disposed spanning the socket immediately adjacent the one of the ends of the elongated member for partially defining and closing the slot.
Claim 8
Dependent Claim
60 words
A structure as defined in claim 3, wherein the elongated member has a circular cross section at the other of the ends which circular cross section extends longitudinally between that end and the flat portion with the socket extending substantially one half of the longitudinal extent of the longitudinal member and the flattened portion extending substantially coextensively with the socket.
Claim 9
Dependent Claim
33 words
A structure as defined in claim 3, wherein a web is disposed spanning the socket immediately adjacent the one of the ends of the elongated member for partially defining and closing the slot.
References Cited (Backward Citations)
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Cited
US2716565A
Cited
US3272188A
Cited
US3386306A
Cited
US3497847A
Cited
US3507508A
Cited
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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) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |