Patent US1572776A successfully refreshed from Google Patents.
Patent US4917552A successfully refreshed from Google Patents.
US4917552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin drive anchor with locking sleeve
Assignee: DIVERSIFIED FASTENING SYSTEMS Inc A CORP OF IOWA
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Filing: 1989-09-05
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Granted: 1990-04-17
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Expires: 2009-09-05
Abstract
Abstract An improved pin drive anchor has an elongated body with an inner end with a reduced section about which a locking sleeve member is secured, and a longitudinal bore extending the length of the body and having a reduced diameter section proximate to the sleeve member. The sleeve member and the body inner end are slotted to permit expansion of the sleeve member and the inner end when a pin is driven through the entire length of the body bore to firmly secure the anchor in the cavity of a wall.
Inventors
- 👤 Danny E. Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:48
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/12; F16B13/126
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
198 words
An improved pin drive anchor for securing various types of articles to a masonry or concrete wall, said anchor comprising: (a) an elongated body having: (1) an outer generally cylindrical end portion having threads for attaching said articles to said wall; (2) a generally cylindrical center portion; (3) an inner generally cylindrical end portion that is approximately equally divided into a reduced section extending from said center portion and an inclined section that extends from said reduced portion to the free terminus of said inner end portion; and (4) a longitudinal axially aligned bore that includes a first section with a generally uniform diameter extending from the free terminus of said outer end portion to a point proximate with said inclined section and a second section that has a diameter smaller than that of said first section and extends inwardly from said first section; (b) a sleeve member secured on said reduced section of said inner end body portion; (c) said sleeve member and said body inner end portion being slotted to permit expansion of said sleeve member and said inner end portion of said body when a pin is driven through the entire length of said bore.
Claim 2
Dependent Claim
198 words
An improved pin drive anchor for securing various types of articles to a masonry or concrete wall, said anchor comprising: (a) an elongated body having: (1) an outer generally cylindrical end portion having threads for attaching said articles to said wall; (2) a generally cylindrical center portion; (3) an inner generally cylindrical end portion that is approximately equally divided into a reduced section extending from said center portion and an inclined section that extends from said reduced portion to the free terminus of said inner end portion; and (4) a longitudinal axially aligned bore that includes a first section with a generally uniform diameter extending from the free terminus of said outer end portion to a point proximate with said inclined section and a second section that has a diameter smaller than that of said first section and extends inwardly from said first section; (b) a sleeve member secured on said reduced section of said inner end body portion; (c) said sleeve member and said body inner end portion being slotted to permit expansion of said sleeve member and said inner end portion of said body when a pin is driven through the entire length of said bore.
Claim 3
Dependent Claim
207 words
An improved pin drive anchor for securing various types of articles to a masonry or concrete wall, said anchor comprising: (a) an elongated body having: (1) an outer generally cylindrical end portion that forms a major portion of said body and has means for attaching said articles to said wall; (2) an inner generally cylindrical opposite end portion that is approximately equally divided into a reduced section extending from said outer end portion and an inclined section that extends from said reduced section to the free terminus of said inner end portion; and (3) a longitudinal axially aligned bore that includes a first section with a generally uniform diameter extending from the free terminus of said outer end portion to a point proximate to said inclined portion of said inner end portion and a second section that has a diameter smaller than that of said first section and extends inwardly from said first section; (b) a sleeve member secured on said reduced section of said inner end portion; (c) said sleeve member and said body inner end portion being slotted to permit expansion of said sleeve member and said inner end portion of said body when a pin is driven through the entire length of said bore.
Claim 4
Dependent Claim
207 words
An improved pin drive anchor for securing various types of articles to a masonry or concrete wall, said anchor comprising: (a) an elongated body having: (1) an outer generally cylindrical end portion that forms a major portion of said body and has means for attaching said articles to said wall; (2) an inner generally cylindrical opposite end portion that is approximately equally divided into a reduced section extending from said outer end portion and an inclined section that extends from said reduced section to the free terminus of said inner end portion; and (3) a longitudinal axially aligned bore that includes a first section with a generally uniform diameter extending from the free terminus of said outer end portion to a point proximate to said inclined portion of said inner end portion and a second section that has a diameter smaller than that of said first section and extends inwardly from said first section; (b) a sleeve member secured on said reduced section of said inner end portion; (c) said sleeve member and said body inner end portion being slotted to permit expansion of said sleeve member and said inner end portion of said body when a pin is driven through the entire length of said bore.
Claim 5
Dependent Claim
179 words
An improved pin drive anchor for securing various types of articles to a masonry or concrete wall, said anchor comprising: (a) an elongated body having an inner generally cylindrically end portion approximately equally divided into an inclined section that extends from the free terminus of said inner end portion to approximately a midpoint of said portion and a reduced section extending from said midpoint the remainder of said portion; (b) a longitudinal axially aligned bore that includes a first section with a uniform diameter extending from the free terminus of an outer end portion of said body to a point proximate with said inclined section, and a second section that has a diameter smaller than that of said first section and extends inwardly from said first section; (c) a sleeve member secured on said reduced section of said inner end body portion; and (d) said sleeve member and said body inner end portion being slotted to permit expansion of said sleeve member and said inner end portion when a pin is driven through the entire length of said bore.
Claim 6
Dependent Claim
179 words
An improved pin drive anchor for securing various types of articles to a masonry or concrete wall, said anchor comprising: (a) an elongated body having an inner generally cylindrically end portion approximately equally divided into an inclined section that extends from the free terminus of said inner end portion to approximately a midpoint of said portion and a reduced section extending from said midpoint the remainder of said portion; (b) a longitudinal axially aligned bore that includes a first section with a uniform diameter extending from the free terminus of an outer end portion of said body to a point proximate with said inclined section, and a second section that has a diameter smaller than that of said first section and extends inwardly from said first section; (c) a sleeve member secured on said reduced section of said inner end body portion; and (d) said sleeve member and said body inner end portion being slotted to permit expansion of said sleeve member and said inner end portion when a pin is driven through the entire length of said bore.
Claim 7
Dependent Claim
21 words
An anchor as recited in claim 3 wherein said sleeve member has at least one wall engaging member on its periphery.
Claim 8
Dependent Claim
17 words
An anchor as recited in claim 4 wherein said sleeve has a plurality of wall engaging members.
Claim 9
Dependent Claim
16 words
An anchor as recited in claim 5 wherein said sleeve is rotatably secured on said body.
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) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |