Patent US4346804A successfully refreshed from Google Patents.
US4346804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storing and handling of hollow rivets
Assignee: Newfrey LLC
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Filing: 1980-10-02
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Granted: 1982-08-31
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Expires: 2000-10-02
Abstract
Abstract Loading of a pull-through blind riveting mandrel is effected by arranging on an elongated sleeve a plurality of hollow rivets assembled head-to-tail, threading the mandrel along the sleeve, and transferring the rivets to the mandrel while withdrawing the sleeve. In addition to this procedure the invention contemplates provision of a package or assemblage for facilitating storage and/or transfer of the rivets of a column to a reuseable rivet-installing mandrel.
Inventors
- 👤 John Powderly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:59
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/30; B21J15/32; B21J15/34; B25; B25B; B25B27/00; B25B27/14; B25B33/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
100 words
A rivet assembly comprising: a tubular sleeve with an integrally formed engagement means disposed at one end thereof, said sleeve being adapted to substantially receive a blind-riveting mandrel introduced at the other end; and a row of hollow rivets on the exterior of the sleeve slidably disposed thereon in a head-to-tail relation, the head of the first rivet in the row being nearest to the engagement means, said engagement means being integrally formed on the tubular sleeve so as to prevent said rivets from sliding thereover, said rivets further being arranged to slide over said other end onto said mandrel.
Claim 2
Dependent Claim
100 words
A rivet assembly comprising: a tubular sleeve with an integrally formed engagement means disposed at one end thereof, said sleeve being adapted to substantially receive a blind-riveting mandrel introduced at the other end; and a row of hollow rivets on the exterior of the sleeve slidably disposed thereon in a head-to-tail relation, the head of the first rivet in the row being nearest to the engagement means, said engagement means being integrally formed on the tubular sleeve so as to prevent said rivets from sliding thereover, said rivets further being arranged to slide over said other end onto said mandrel.
Claim 3
Dependent Claim
33 words
A device as in claim 1 wherein the sleeve is cylindrical and has a wall thickness less than the difference between that of the mandrel stem portion and the minimum rivet bore diameter.
Claim 4
Dependent Claim
15 words
A device as in claim 1 wherein the sleeve is flexible and of plastic material.
Claim 5
Dependent Claim
34 words
A device as in claim 3 wherein an end of the sleeve toward which the rivet tails are to be oriented is flared to facilitate axial introduction of a mandrel and prevent rivet escape.
Claim 6
Dependent Claim
32 words
A device as in claim 3 wherein at least a portion of the sleeve is deformable as by manual pinching to enable a mandrel therein to be gripped while transferring rivets thereto.
Claim 7
Dependent Claim
20 words
A device as in claim 4 wherein the sleeve carries at its flared end a lubricant transferable to the mandrel.
References Cited (Backward Citations)
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Cited
US1800459A
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US1891624A
Cited
US2706039A
Cited
US3169527A
Cited
US3211293A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |