US4094116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web tube with separated end walls
Assignee: Simpson Strong Tie Co Inc
•
Filing: 1977-06-06
•
Granted: 1978-06-13
•
Expires: 1997-06-06
Abstract
Abstract A tubular web having a generally circular cross section in the body portion; tapering at its ends in a symmetrical manner and terminating in an end portion having generally flat outside surfaces with the distinguishing characteristic being in the separated end walls. An opening is formed in the separated end wall flat areas for receiving a metal connector pin.
Inventors
- 👤 Tyrell T. Gilb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:19
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/29; E04C3/292; Y; Y10; Y10T; Y10T403/00; Y10T403/44; Y10T403/71; Y10T403/7123
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
In medium and heavy series composite wood chord and metal web member trusses having double wood members for the top and bottom chords and joint means including transverse bores formed in said chords, a metal joint connector connected to said chord and formed with an opening therethrough in registration with said transverse bores in said chord and a single metal pin at each of said joints inserted through said bores in said chords and said opening in said metal joint connector the improvement comprising: a. a plurality of tubular metal web members formed from an open ended cylindrical metal tube formed with openings at both ends connected to said chords by said pins; and b. said tubular metal web members are formed with: 1. an elongated tubular body portion; 2. a smoothly tapered and unshouldered transition portion including a bulb section integrally connected to said body portion and flat side portions on both sides of said bulb section;
Claim 2
Dependent Claim
158 words
In medium and heavy series composite wood chord and metal web member trusses having double wood members for the top and bottom chords and joint means including transverse bores formed in said chords, a metal joint connector connected to said chord and formed with an opening therethrough in registration with said transverse bores in said chord and a single metal pin at each of said joints inserted through said bores in said chords and said opening in said metal joint connector the improvement comprising: a. a plurality of tubular metal web members formed from an open ended cylindrical metal tube formed with openings at both ends connected to said chords by said pins; and b. said tubular metal web members are formed with: 1. an elongated tubular body portion; 2. a smoothly tapered and unshouldered transition portion including a bulb section integrally connected to said body portion and flat side portions on both sides of said bulb section;
Claim 3
Dependent Claim
78 words
a smooth sided, unshouldered flattened end portion formed adjacent the transition portion with a pin opening therethrough; 4. said walls of said tubular member are separated from one another in said transition portion and said flattened end portion between said opening and said body portion; and 5. said walls of said distal ends of said tubular web members beyond said openings are in touching contact for maintaining the separation of said walls between said opening and body portion.
Claim 4
Dependent Claim
78 words
a smooth sided, unshouldered flattened end portion formed adjacent the transition portion with a pin opening therethrough; 4. said walls of said tubular member are separated from one another in said transition portion and said flattened end portion between said opening and said body portion; and 5. said walls of said distal ends of said tubular web members beyond said openings are in touching contact for maintaining the separation of said walls between said opening and body portion.
References Cited (Backward Citations)
US1556589A
Cited
US2408907A
Cited
US3386222A
Cited
US3564783A
Cited
US3570204A
Cited
US3857218A
Cited
US3946532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |