US4033540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf supports
Assignee: Archibald Kenrick and Sons Ltd
•
Filing: 1975-04-21
•
Granted: 1977-07-05
•
Expires: 1995-04-21
Abstract
Abstract A shelf support comprising a member adapted for attachment to a wall or other structure said member defining a lipped internal channel of uniform dimensions throughout its length, and a shelf support bracket having a shelf supporting portion and a portion engageable in the lipped channel, and arranged to extend lengthwise thereof, the latter portion carrying a pair of wedges disposed within the channel, that portion being engageable between the wedges to hold the bracket against movement lengthwise of the member, said portion of the bracket being removable from such position between the wedges to allow the bracket, together with the wedges to be moved lengthwise of the member.
Inventors
- 👤 Richard David Hamblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:35
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/54; A47B57/56; A47B57/567
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
190 words
A shelf support comprising a member adapted for attachment vertically to a wall or other structure, said member including an internal channel of uniform dimensions throughout its length and an outwardly facing slot formed by a pair of opposing lips; a bracket having a shelf-supporting portion and a generally triangular flange depending from the shelf-supporting portion, said flange including a blade portion extending into said channel through said lips; a pair of projections extending outwardly from the upper edge of said blade portion for engaging the inner surfaces of said lips; and a pair of channel-engaging wedges pivotably supported by said blade portion and extending along the surfaces of the blade portion extending into said channel, said blade portion being frictionally inserted between said wedges and having a surface for engaging the inner rear surface of said member for rigidly supporting said bracket against movement in said channel, both by the oppositely acting purely frictional engagement between the lip-engaging projections and the channel-engaging surface of the blade portion, and the frictional engagement of said wedges with the channel by insertion of the blade portion for infinite adjustability of said bracket.
Claim 2
Dependent Claim
190 words
A shelf support comprising a member adapted for attachment vertically to a wall or other structure, said member including an internal channel of uniform dimensions throughout its length and an outwardly facing slot formed by a pair of opposing lips; a bracket having a shelf-supporting portion and a generally triangular flange depending from the shelf-supporting portion, said flange including a blade portion extending into said channel through said lips; a pair of projections extending outwardly from the upper edge of said blade portion for engaging the inner surfaces of said lips; and a pair of channel-engaging wedges pivotably supported by said blade portion and extending along the surfaces of the blade portion extending into said channel, said blade portion being frictionally inserted between said wedges and having a surface for engaging the inner rear surface of said member for rigidly supporting said bracket against movement in said channel, both by the oppositely acting purely frictional engagement between the lip-engaging projections and the channel-engaging surface of the blade portion, and the frictional engagement of said wedges with the channel by insertion of the blade portion for infinite adjustability of said bracket.
Claim 3
Dependent Claim
53 words
The shelf support as claimed in claim 1, wherein said bracket is pivotable about said projections and wherein said blade portion may be pivoted at least partially outwardly from between said wedges releasing both the purely frictional engagement and the frictional wedge support for movement of the bracket with respect to said member.
Claim 4
Dependent Claim
34 words
A shelf support as claimed in claim 2 in which the wedges are pivoted to the blade portion of the flange by a pivot pin passing through the blade portion at one corner thereof.
References Cited (Backward Citations)
US766605A
Cited
GB190416733A
Cited
US830232A
Cited
US1041264A
Cited
US2677519A
Cited
US3865337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |