Patent US3851600A successfully refreshed from Google Patents.
US3851600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf corner clamp
Assignee: Mercury Aircraft Inc
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Filing: 1973-11-29
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Granted: 1974-12-03
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Expires: 1993-11-29
Abstract
Abstract A corner clamp secures a shelf adjustably on an upright leg with the leg fitted into a notch in the corner of the shelf and the downward extending flange of the shelf. An outer bracket wraps around the outside of the leg and the shelf flange and has tabs extending inward through the shelf flange, and an inner bracket fits over the inside of the leg, extends along the inside of the shelf flange, and receives the tabs from the outer bracket in slots. Then bolts extending through the inner and outer brackets and the shelf flange draw the parts together, and the inner bracket is shaped to clear the inside of the shelf flange tensioning the parts securely together.
Inventors
- 👤 C Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; A; A47; A47B; A47B57/00; A47B57/06; A47B57/26
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
332 words
A shelf corner clamp for securing a shelf adjustably to an upright support leg, said shelf having a downward extending flange and said leg being fitted into a notch in said corner of said shelf and said flange and extending above and below said shelf, said shelf corner clamp comprising: a. said flange having a bolt hole and a tab receiving slot on each side of said corner notch, said tab receiving slots being further from said corner notch then said bolt holes; b. an outer bracket shaped to wrap around the outside of said leg when said leg is in said corner notch and to extend over the outside of said flange beyond said flange bolt holes and to said tab receiving slots; c. said outer bracket having bolt holes registered with said flange bolt holes; d. said outer bracket having tabs extending inward through said tab receiving slots in said flange; e. an inner bracket shaped to fit over a portion of the inside of said leg when said leg is in said corner notch and to extend along the inside of said flange beyond said flange bolt holes and beyond said tab receiving slots; f. said inner bracket having bolt holes registered with said flange bolt holes and said outer bracket bolt holes; g. said inner bracket having tab receiving slots registered with said tab receiving slots in said flange; h. said tabs of said outer bracket extending through said tab receiving slots of said inner bracket; i. a pair of bolts extending through said bolt holes in said outer bracket, said flange, and said inner bracket for drawing said outer bracket and said inner bracket toward respective outer and inner sides of said flange; and j. said inner bracket being shaped to have a clearance from said inside of said flange in the region of each of said bolts so that tightening said bolts draws said inner and outer brackets, and said leg and said shelf securely together.
Claim 2
Dependent Claim
332 words
A shelf corner clamp for securing a shelf adjustably to an upright support leg, said shelf having a downward extending flange and said leg being fitted into a notch in said corner of said shelf and said flange and extending above and below said shelf, said shelf corner clamp comprising: a. said flange having a bolt hole and a tab receiving slot on each side of said corner notch, said tab receiving slots being further from said corner notch then said bolt holes; b. an outer bracket shaped to wrap around the outside of said leg when said leg is in said corner notch and to extend over the outside of said flange beyond said flange bolt holes and to said tab receiving slots; c. said outer bracket having bolt holes registered with said flange bolt holes; d. said outer bracket having tabs extending inward through said tab receiving slots in said flange; e. an inner bracket shaped to fit over a portion of the inside of said leg when said leg is in said corner notch and to extend along the inside of said flange beyond said flange bolt holes and beyond said tab receiving slots; f. said inner bracket having bolt holes registered with said flange bolt holes and said outer bracket bolt holes; g. said inner bracket having tab receiving slots registered with said tab receiving slots in said flange; h. said tabs of said outer bracket extending through said tab receiving slots of said inner bracket; i. a pair of bolts extending through said bolt holes in said outer bracket, said flange, and said inner bracket for drawing said outer bracket and said inner bracket toward respective outer and inner sides of said flange; and j. said inner bracket being shaped to have a clearance from said inside of said flange in the region of each of said bolts so that tightening said bolts draws said inner and outer brackets, and said leg and said shelf securely together.
Claim 3
Dependent Claim
29 words
The shelf corner clamp of claim 1 wherein said bolt holes in said outer bracket are shaped to allow transverse movement of said outer bracket relative to said flange.
Claim 4
Dependent Claim
22 words
The shelf corner clamp of claim 2 wheRein said outer bracket bolt holes have a larger diameter than said flange bolt holes.
Claim 5
Dependent Claim
29 words
The shelf corner clamp of claim 1 wherein said bolt holes in said inner bracket are shaped to allow transverse movement of said inner bracket relative to said flange.
Claim 6
Dependent Claim
27 words
The shelf corner clamp of claim 4 wherein said inner bracket bolt holes are oblong in the direction of extension of said inner bracket and said flange.
Claim 7
Dependent Claim
25 words
The shelf corner clamp of claim 1 wherein said leg is square in cross-section, said outer bracket is L-shaped, and said inner bracket is W-shaped.
Claim 8
Dependent Claim
39 words
The shelf corner clamp of claim 1 wherein the outer edges of said tab receiving slots in said inner bracket are shaped to engage the central regions of said tabs at a distance from said inside of said flange.
Claim 9
Dependent Claim
60 words
The shelf corner clamp of claim 1 wherein said tabs on said outer bracket bend inward toward said inner bracket at angles of more than 90* relative to said outer bracket so that tightening of said bolts makes said inner bracket urge said tabs toward said corner notch to draw said outer bracket inward against said leg and said flange.
Claim 10
Dependent Claim
39 words
The shelf corner clamp of claim 8 wherein the outer edges of said tab receiving slots in said inner bracket are shaped to engage the central regions of said tabs at a distance from said inside of said flange.
Claim 11
Dependent Claim
54 words
The corner shelf clamp of claim 9 wherein said leg is square in cross-section, said outer bracket is L-shaped, said inner bracket is W-shaped, and said bolt holes in said outer bracket and said inner bracket are shaped to allow transverse movement of said outer bracket and said inner bracket relative to said flange.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |