US4516378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring device
Assignee: Individual
•
Filing: 1983-04-04
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Granted: 1985-05-14
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Expires: 2003-04-04
Abstract
Abstract The anchoring device for anchoring in a hole formed in a porous structural material includes an expansible sleeve-shaped member formed with elongated slots, an expandable conical member and an intermediate expandable element which is slotted and positioned between the sleeve-shaped member and the expandable member. Upon inserting and rotating an actuation screw into the sleeve-shaped member, intermediate element and expandable conical member they are expanded and anchored in the hole of the porous material.
Inventors
- 👤 Artur Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:04
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/066
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
190 words
An anchoring device for mounting an object to a supporting structure of porous construction materials, particularly aerated cement or hollow structural blocks, comprising an expansible sleeve-shaped member adapted to be received and anchored in a hole formed in the structure, said sleeve-shaped member having a front end remote from said object and being formed with elongated slots; an expandable member having a conical outer face portion; an actuating screw insertable into said sleeve-shaped member and said expandable member to cause the movement of said expandable member in an axial direction of the sleeve upon rotation of said actuating screw; and at least one intermediate expandable element with an internal thread to receive said actuating screw therethrough and positioned between the front end of the sleeve-shaped member and said expandable member and having a conical outer face portion, said intermediate element having a front end remote from said sleeve-shaped member and being formed with elongated slots extended from its front end over a portion of its length, said intermediate element being further formed with locking pins radially outwardly extended therefrom and engageable in the respective elongated slots of said sleeve-shaped member.
Claim 2
Dependent Claim
190 words
An anchoring device for mounting an object to a supporting structure of porous construction materials, particularly aerated cement or hollow structural blocks, comprising an expansible sleeve-shaped member adapted to be received and anchored in a hole formed in the structure, said sleeve-shaped member having a front end remote from said object and being formed with elongated slots; an expandable member having a conical outer face portion; an actuating screw insertable into said sleeve-shaped member and said expandable member to cause the movement of said expandable member in an axial direction of the sleeve upon rotation of said actuating screw; and at least one intermediate expandable element with an internal thread to receive said actuating screw therethrough and positioned between the front end of the sleeve-shaped member and said expandable member and having a conical outer face portion, said intermediate element having a front end remote from said sleeve-shaped member and being formed with elongated slots extended from its front end over a portion of its length, said intermediate element being further formed with locking pins radially outwardly extended therefrom and engageable in the respective elongated slots of said sleeve-shaped member.
Claim 3
Dependent Claim
30 words
The device as defined in claim 1, wherein said expandable member is formed with locking pins radially outwardly extended therefrom and engageable in the respective slots of the intermediate element.
Claim 4
Dependent Claim
52 words
The device as defined in claim 2, wherein said intermediate element has a plane through which the slots formed therein extend, the intermediate element being formed with two recesses which are opposite to each other with respect to an axis of the intermediate element and are offset 90° relative to said plane.
Claim 5
Dependent Claim
28 words
The device as defined in claim 3, wherein said expandable member has an outer periphery and is formed with two projections which are engaged in said recesses, respectively.
Claim 6
Dependent Claim
39 words
The device as defined in claim 2, wherein said slots in said sleeve-shaped member form expandable leg portions which are held together before expansion by a bind provided in the region of the front end of the sleeve-shaped member.
Claim 7
Dependent Claim
39 words
The device as defined in claim 5, wherein the slots in said intermediate element form expandable leg portions which are held together before expansion by a bind provided in the region of the front end of the intermediate element.
Claim 8
Dependent Claim
39 words
The device as defined in claim 2, wherein the angle of inclination of the conical outer face portion of said intermediate element is smaller than the angle of inclination of the conical outer face portion of said expandable member.
Claim 9
Dependent Claim
39 words
The device as defined in claim 2, wherein said sleeve-shaped member is formed with two opposite internal elongated grooves and has a plane through which the slots formed therein extend, said grooves being offset 90° relative to said plane.
Claim 10
Dependent Claim
33 words
The device as defined in claim 8, wherein said intermediate element has an outer periphery and is formed with two projections on said outer periphery, said projections being engaged in said grooves, respectively.
Claim 11
Dependent Claim
55 words
The device as defined in claim 9, wherein said intermediate element has a plane through which slots formed therein extend; the intermediate element being formed with two recesses which are opposite to each other with respect to an axis of the intermediate element and are offset 90° relative to said plane of the intermediate element.
Claim 12
Dependent Claim
28 words
The device as defined in claim 10, wherein said expandable member has an outer periphery and is formed with two projections which are engaged in said recesses, respectively.
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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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |