US3850534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair connector
Assignee: HALLORAN RO
•
Filing: 1972-12-07
•
Granted: 1974-11-26
•
Expires: 1992-12-07
Abstract
Abstract A plastic chair having a plurality of tubular members connected together by a chair connecting means. The connecting means includes locking means, a pin, and a tube fitting. The tube fitting includes an inner connecting portion and an outer abutting portion. The inner connecting portion is welded in the end of one tubular member. The abutting extension is integrally connected at a 90* angle to a second tubular member by the locking means. The locking means may be fixed to the pin or the tube fitting to lock the tube fitting in engagement with the second tubular member.
Inventors
- 👤 Halloran R O
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:39
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; F16B2200/00; F16B2200/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
187 words
A device for connecting together a first tubular member to a second tubular member at a substantially perpendicular angle comprising: a cylindrical member having a first end portion and a second end portion, said first end portion having a smaller circumferential exterior diameter than said second end portion, said second end portion having a surface configuration curved and adapted to receive and abut against said second tubular exterior surface, said cylindrical member having a transverse wall coupled across said second cylindrical member end portion opening, said transverse wall having an aperture disposed substantially in a central portion, and a locking pin, said pin having a first end having a flanged enlarged diametrially end portion, and a second end having a bifurcated tapered end portion, said bifurcating end portions being resilient and receivable through said cylindrical member transverse wall aperture, said bifurcated end portions having flanged circumferential diameter portions which are engageable within said cylindrical member transverse wall aperture whereby said second tubular member may be lockably engaged to said cylindrical member with the bifurcated second end portion of said pin positioned within said transverse wall aperture portion.
Claim 2
Independent Claim
187 words
A device for connecting together a first tubular member to a second tubular member at a substantially perpendicular angle comprising: a cylindrical member having a first end portion and a second end portion, said first end portion having a smaller circumferential exterior diameter than said second end portion, said second end portion having a surface configuration curved and adapted to receive and abut against said second tubular exterior surface, said cylindrical member having a transverse wall coupled across said second cylindrical member end portion opening, said transverse wall having an aperture disposed substantially in a central portion, and a locking pin, said pin having a first end having a flanged enlarged diametrially end portion, and a second end having a bifurcated tapered end portion, said bifurcating end portions being resilient and receivable through said cylindrical member transverse wall aperture, said bifurcated end portions having flanged circumferential diameter portions which are engageable within said cylindrical member transverse wall aperture whereby said second tubular member may be lockably engaged to said cylindrical member with the bifurcated second end portion of said pin positioned within said transverse wall aperture portion.
Claim 3
Dependent Claim
40 words
Tubular connecting device, as in claim 1, wherein: said cylindrical member first end having a smaller circumferential diameter and has a plurality of longitudinal slots disposed from the second end portion and arranged axially relative to said cylindrical member axis.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |