Patent US3599151A successfully refreshed from Google Patents.
US4129007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor device for resin anchor system
Assignee: Celtite Inc
•
Filing: 1977-08-04
•
Granted: 1978-12-12
•
Expires: 1997-08-04
Abstract
Abstract An anchor device to be used in a hole with a bolt in connection with a cartridge containing a hardenable resin or other fast setting material. The bolt has a threaded shank and at least one lug means extending from the threaded shank. The anchor is an elongate cylindrical shell with a central passage to receive the bolt, thereby forming an anchor-bolt unit. The anchor has a first open end and a second closed end and also has an internally threaded portion for receiving the bolt. The bolt extends outwardly at the first end with the lug means of the bolt being located adjacent the closed second end of the anchor. The anchor-bolt unit is inserted in the hole after the cartridge has been inserted in the hole whereby when the bolt is rotated in a first sense there is a tendency to unthread the bolt from the anchor, but the bolt lug prevents complete withdrawal and instead the anchor is rotated to expel and mix the contents of the cartridge. After setting of the resin the bolt is rotated in a second sense so that the bolt penetrates into the anchor to tension the bolt.
Inventors
- 👤 Paul G. Rausch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
CPC Classifications
E; E21; E21D; E21D20/00; E21D20/02; E21D20/025; E21D21/00; E21D21/0026; E21D21/0033; F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; F16B13/143; F16B2013/008; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
An anchor for use in a hole with a bolt and cartridge containing hardenable resin, said bolt having a threaded shank and having at least one lug means extending from said threaded shank, said anchor being an elongate cylindrical shell and having a central passage to receive said bolt, to form an anchor-bolt unit, said anchor having a first open end and a second closed end, said bolt extending outwardly of said first open end, said anchor also having an internally threaded portion for receiving said bolt, said bolt lug means being located adjacent said closed second end of said anchor, said anchor-bolt unit being inserted in said hole and said cartridge also being inserted in said hole whereby when said bolt is rotated in a first sense to tend to withdraw said bolt from said anchor, said bolt lug means prevents complete withdrawal and instead said anchor is rotated, thereby to expel and mix the contents of said cartridge and thereafter said bolt may be rotated after setting of the resin in a second sense so that said bolt penetrates into said anchor to tension the bolt.
Claim 2
Dependent Claim
188 words
An anchor for use in a hole with a bolt and cartridge containing hardenable resin, said bolt having a threaded shank and having at least one lug means extending from said threaded shank, said anchor being an elongate cylindrical shell and having a central passage to receive said bolt, to form an anchor-bolt unit, said anchor having a first open end and a second closed end, said bolt extending outwardly of said first open end, said anchor also having an internally threaded portion for receiving said bolt, said bolt lug means being located adjacent said closed second end of said anchor, said anchor-bolt unit being inserted in said hole and said cartridge also being inserted in said hole whereby when said bolt is rotated in a first sense to tend to withdraw said bolt from said anchor, said bolt lug means prevents complete withdrawal and instead said anchor is rotated, thereby to expel and mix the contents of said cartridge and thereafter said bolt may be rotated after setting of the resin in a second sense so that said bolt penetrates into said anchor to tension the bolt.
Claim 3
Dependent Claim
15 words
The anchor of claim 1 wherein said bolt has a 5/8 inch (1.6 cm.) diameter.
Claim 4
Dependent Claim
15 words
The anchor of claim 1 wherein the second closed end is closed by a plug.
Claim 5
Dependent Claim
13 words
The anchor of claim 3 wherein said second closed end is flared outwardly.
Claim 6
Dependent Claim
16 words
The anchor of claim 1 wherein said elongate cylindrical shell is formed from a metal casting.
Claim 7
Dependent Claim
17 words
The anchor of claim 1 wherein said elongate shell is formed from sheet metal in two halves.
Claim 8
Dependent Claim
14 words
The anchor of claim 6 wherein said two halves enclose a standard hexagonal nut.
Claim 9
Dependent Claim
15 words
The anchor of claim 7 wherein said two halves are formed with a top-end closure.
Claim 10
Dependent Claim
27 words
The anchor of claim 8 wherein said two anchor halves are secured to said nut through the use of a metal ring secured about said two halves.
Claim 11
Dependent Claim
21 words
The anchor of claim 1 wherein said elongate shell is formed from tubing and has a threaded insert secured in place.
References Cited (Backward Citations)
US1045562A
Cited
US1062534A
Cited
DE452191C
Cited
US1788750A
Cited
US2403541A
Cited
US2592791A
Cited
GB696231A
Cited
US3877235A
Cited
US3896627A
Cited
US4023373A
Cited
US4051683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |