Patent US3815467A successfully refreshed from Google Patents.
US3815467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring assembly
Assignee: Individual
•
Filing: 1972-06-16
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Granted: 1974-06-11
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Expires: 1992-06-16
Abstract
Abstract An anchoring assembly has an expansion sleeve having a longitudinal slot. An expansion body having a tapered portion made from a sheet metal bar which is in the form of a wave having crests of diminishing size towards the front of the expansion body, is engageable in the slot when the sleeve is forced onto the expansion body. At a point on the expansion body where the tapered portion has its narrowest dimension, the expansion body has an abutment means to limit penetration of the body into a hole and also has an outwardly projecting supporting portion.
Inventors
- 👤 A Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:44
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/065; E; E04; E04B; E04B9/00; E04B9/18; F16B13/08; F16B13/0858
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
156 words
An anchoring assembly to be expanded in a hole of a supporting structure, comprising an expansion sleeve having a longitudinal Slot; and an elongated expansion body at least in part received in said expansion sleeve and comprising a front portion provided with attachment means for a structural element to be attached to the supporting structure, and a rear portion adjacent said front end portion and comprising a lateral portion extending into said slot, at least said lateral portion comprising an undulated cross-section defining a plurality of waves extending transversely of the elongation of said body and having crests the height of which converges in the direction toward said front portion, and said slot being widened by said waves in response to requisite axial displacement of said sleeve and said body relative to one another so that the outer surface of said sleeve assumes a substantially conical shape and wedgingly engages the interior surface bounding the hole.
Claim 2
Dependent Claim
156 words
An anchoring assembly to be expanded in a hole of a supporting structure, comprising an expansion sleeve having a longitudinal Slot; and an elongated expansion body at least in part received in said expansion sleeve and comprising a front portion provided with attachment means for a structural element to be attached to the supporting structure, and a rear portion adjacent said front end portion and comprising a lateral portion extending into said slot, at least said lateral portion comprising an undulated cross-section defining a plurality of waves extending transversely of the elongation of said body and having crests the height of which converges in the direction toward said front portion, and said slot being widened by said waves in response to requisite axial displacement of said sleeve and said body relative to one another so that the outer surface of said sleeve assumes a substantially conical shape and wedgingly engages the interior surface bounding the hole.
Claim 3
Dependent Claim
34 words
An anchoring assembly as defined in claim 1, wherein said rear end portion has a width parallel to said crests, and wherein said waves extend over the entire width of said rear end portion.
Claim 4
Dependent Claim
44 words
An anchoring assembly as defined in claim 1, further comprising at the rear end of said expansion sleeve abutment means adapted to abut against the surface of the supporting structure to thereby limit the extent of penetration of said expansion sleeve into the hole.
Claim 5
Dependent Claim
40 words
An anchoring assembly as defined in claim 1, further comprising an outwardly projecting supporting portion connected to the rear end of said expansion sleeve for having elements connected thereto when said expansion sleeve and body are engaged inside the hole.
Claim 6
Dependent Claim
26 words
An anchoring assembly as defined in claim 1, wherein said expansion sleeve is a spring sleeve the longitudinal slot of which extends the entire length thereof.
Claim 7
Dependent Claim
25 words
An anchoring assembly as defined in claim 2, wherein said abutment means projects beyond said slot when said sleeve is forced onto said expansion body.
Claim 8
Dependent Claim
34 words
An anchoring assembly as defined in claim 2, wherein said abutment means is triangular in shape and has a sloping edge inclined to and another edge transverse to the length of said expansion body.
Claim 9
Dependent Claim
36 words
An anchoring assembly as defined in claim 1, wherein successive crests of said rear portion have heights which gradually increase in a direction transverse to the length of said expansion body away from said front end.
References Cited (Backward Citations)
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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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |