US3601428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pronged joist hanger
Assignee: Simpson Strong Tie Co Inc
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Filing: 1969-12-11
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Granted: 1971-08-24
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Expires: 1989-12-11
Abstract
Abstract A joist hanger formed with integral prongs which can be driven into a wood joist by a hammer blow thereby eliminating or reducing the number of nails required to fasten the hanger to the joist. Other integral prongs increase the holding power of the hanger to the header.
Inventors
- 👤 Tyrell T Gilb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:41
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B1/2612; E04B1/2608; E04B5/00; E04B5/02; E04B5/14; F; F16; F16B; F16B15/00; F16B15/0023; F16B15/003; F16B15/0046; F16B9/00; F16B9/05; F16B9/052; F16B2015/0076; F16B2200/00; F16B2200/50; F16B2200/503
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
A joist hanger for supporting a wood joist said hanger having a seat base, a pair of laterally spaced and parallel side members connected to the seat base adapted for receiving the sides of said wood joist therebetween, header engaging flanges extending laterally from each of said side members, the improvement comprising: A. prong means consisting of an elongated portion and an angularly related penetrating portion integrally formed in said hanger side member and being bendable to a position in interlocking engagement with said joist; B. the axis of said prongs being substantially angularly related to the direction of load placed on said hanger and substantially angularly related to a direction perpendicular to the direction of said load, and said penetrating portion of said prongs being located to cross the grain of said wood joist; C. each of said prong means being tapered to a point at its free end and bent to approximately a right angle near said tapered end.
Claim 2
Dependent Claim
161 words
A joist hanger for supporting a wood joist said hanger having a seat base, a pair of laterally spaced and parallel side members connected to the seat base adapted for receiving the sides of said wood joist therebetween, header engaging flanges extending laterally from each of said side members, the improvement comprising: A. prong means consisting of an elongated portion and an angularly related penetrating portion integrally formed in said hanger side member and being bendable to a position in interlocking engagement with said joist; B. the axis of said prongs being substantially angularly related to the direction of load placed on said hanger and substantially angularly related to a direction perpendicular to the direction of said load, and said penetrating portion of said prongs being located to cross the grain of said wood joist; C. each of said prong means being tapered to a point at its free end and bent to approximately a right angle near said tapered end.
Claim 3
Dependent Claim
27 words
A joist hanger as described in claim 1 wherein: A. said prongs are laterally curved to provide rigidity so that they may be hammered into the joists.
Claim 4
Dependent Claim
31 words
A joist hanger as described in claim 1 wherein: A. at least a pair of said prongs are located at an angle of 45* to the direction of the joist load.
References Cited (Backward Citations)
CA683104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |