Patent US4065219A successfully refreshed from Google Patents.
US4065219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft adapter
Assignee: Individual
•
Filing: 1976-08-26
•
Granted: 1977-12-27
•
Expires: 1996-08-26
Abstract
Abstract A shaft adapter for a fan motor has an elongated configuration with a fan motor shaft receiving socket portion provided at one end and a fan blade mounting shaft provided at the other end. By making a receptacle formed in the socket portion of a different diameter than the shaft, different diameter motor shafts and fan blade shaft receiving bores can be connected to one another. The adapter is preferably constructed from a rigid yet relatively soft material to facilitate cutting off of the shaft at a desired length for a particular installation.
Inventors
- 👤 Fred Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:05
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/02; F16D2001/062; Y; Y10; Y10S; Y10S464/00; Y10S464/902; Y10S464/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49716; Y10T29/49826; Y10T29/49945; Y10T403/00; Y10T403/51; Y10T403/57; Y10T403/5706
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
168 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 portion forming one of the ends and a shaft portion forming the other of the ends, with the socket portion being arranged for receiving a shaft of a fan motor for rotation with the shaft, and the shaft portion being arranged for mounting a fan blade for rotation with the member, the socket portion being provided with a receptacle arranged for receiving the shaft of the fan motor, and wherein the shaft portion includes a longitudinally extending shaft, there being a plurality of adapters forming a set, each of the adapters having a receptacle of a diameter equal to the diameter of the receptacle of the other adapters, and a shaft having a diameter different from the diameters of each of the other adapters.
Claim 2
Dependent Claim
168 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 portion forming one of the ends and a shaft portion forming the other of the ends, with the socket portion being arranged for receiving a shaft of a fan motor for rotation with the shaft, and the shaft portion being arranged for mounting a fan blade for rotation with the member, the socket portion being provided with a receptacle arranged for receiving the shaft of the fan motor, and wherein the shaft portion includes a longitudinally extending shaft, there being a plurality of adapters forming a set, each of the adapters having a receptacle of a diameter equal to the diameter of the receptacle of the other adapters, and a shaft having a diameter different from the diameters of each of the other adapters.
Claim 3
Dependent Claim
39 words
An article as defined in claim 1, wherein the socket portion of each of the adapters includes a hollow insert fit in the receptacle, the shaft of the fan motor being received in the insert by a force fit.
Claim 4
Dependent Claim
63 words
An article as defined in claim 1, wherein the elongated member of each of the adapters is constructed from a relatively soft material having a low shear strength for permitting force fits of the member with the shaft of the fan motor and with the fan blade and for facilitating severing of undesired lengths of the longitudinally extending shaft of the shaft portion.
References Cited (Backward Citations)
US2032900A
Cited
US2111642A
Cited
US2513720A
Cited
US3024629A
Cited
US3272188A
Cited
US3386306A
Cited
US3502056A
Cited
US3824807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |