Patent US3894462A successfully refreshed from Google Patents.
US3894462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp element for clamping on a rotatable shaft
Assignee: Haustrups Fabriker AS
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Filing: 1974-07-10
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Granted: 1975-07-15
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Expires: 1994-07-10
Abstract
Abstract The invention relates to a clamp element for clamping onto a rotatable shaft and includes a ring adapted to be mounted on the shaft. In the inner surface of the ring two tongues are cut, the tongues extending along a portion of the inner circumference of the ring and each of the tongues being at one end integral with the remaining portion of the ring and at the other opposing ends free, with these free ends of the tongues being bolted together by means of a bolt arranged in a bore extending in the plane of the ring, and the clamp element thereby being clamped on the shaft.
Inventors
- 👤 Borge Lundtoft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:50
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/12; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9372; Y10T83/9377; Y10T83/9403; Y10T83/9457; Y10T83/9464
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
180 words
A clamp element particularly adapted for adjustable clamping onto a rotatable shaft and having means for supporting an object such as a tool for rotation with the shaft, said clamp element being in the form of a ring having end surfaces and an internal wall extending substantially at right angles to said end surfaces and defining a hole for the reception of a shaft, said ring having an axis, said ring being improved by two internal tongues each separated partially by cuts in said ring, each tongue being primarily defined by a portion of said wall, a cut generally at right angles to said wall, a curved cut extending generally coaxially with said wall portion, and a curved surface formed by generatrices situated parallel to said ring axis, said curved surface having a radius of curvature smaller than that of said wall, said curved surface joining said cuts, said generally right angle cut being common to said tongues, transverse bores in said tongues extending across said common cut and bolt means in said transverse bores for drawing together said tongues.
Claim 2
Dependent Claim
180 words
A clamp element particularly adapted for adjustable clamping onto a rotatable shaft and having means for supporting an object such as a tool for rotation with the shaft, said clamp element being in the form of a ring having end surfaces and an internal wall extending substantially at right angles to said end surfaces and defining a hole for the reception of a shaft, said ring having an axis, said ring being improved by two internal tongues each separated partially by cuts in said ring, each tongue being primarily defined by a portion of said wall, a cut generally at right angles to said wall, a curved cut extending generally coaxially with said wall portion, and a curved surface formed by generatrices situated parallel to said ring axis, said curved surface having a radius of curvature smaller than that of said wall, said curved surface joining said cuts, said generally right angle cut being common to said tongues, transverse bores in said tongues extending across said common cut and bolt means in said transverse bores for drawing together said tongues.
Claim 3
Dependent Claim
26 words
A clamp element according to claim 1, characterized in that those corners of the two tongues defined by said common cut intersecting said Wall are rounded.
Claim 4
Dependent Claim
25 words
A clamp element according to claim 2 wherein each of the two tongues extends along approximately one fourth of the inner circumference of said ring.
Claim 5
Dependent Claim
45 words
A clamp element according to claim 3 wherein axial bores extend through the ring at those ends of the cuts extending concentrically to the wall remote from said common cut and at that end of said common cut opposite to the hole in the ring.
Claim 6
Dependent Claim
45 words
A clamp element according to claim 2 wherein axial bores extend through the ring at those ends of the cuts extending concentrically to the wall remote from said common cut and at that end of said common cut opposite to the hole in the ring.
Claim 7
Dependent Claim
45 words
A clamp element according to claim 1 wherein axial bores extend through the ring at those ends of the cuts extending concentrically to the wall remote from said common cut and at that end of said common cut opposite to the hole in the ring.
Claim 8
Dependent Claim
25 words
A clamp element according to claim 1 wherein each of the two tongues extends along approximately one fourth of the inner circumference of said ring.
Claim 9
Dependent Claim
22 words
A clamp element according to claim 1 characterized in that a tool is permanently secured to the outer surface of the ring.
Claim 10
Dependent Claim
22 words
A clamp element according to claim 8, characterized in that the tool is in the form of a ring of cemented carbides.
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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |