Patent US3695499A successfully refreshed from Google Patents.
US3695499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener installation
Assignee: Taylor Industries Inc
•
Filing: 1971-06-09
•
Granted: 1972-10-03
•
Expires: 1991-06-09
Abstract
Abstract A manually operated installation tool for fasteners such as expansion rivets of the type provided with an expander pin normally projecting from the rivet head and adapted to be forcibly driven into the rivet shank for expanding the shank. The installation tool comprises a hollow housing in which is disposed a reciprocable plunger. One end of the housing has a bore resiliently or frictionally accepting the expander pin projecting from the rivet head, with one end of the plunger proximate the end of the rivet pin, such that the tool is used for inserting the rivet into the rivet accepting apertures of a mechanical assembly, and the expander pin is subsequently forcibly driven into the rivet shank for expanding the shank as a result of manually displacing the plunger by manually applying pressure on the other end of the plunger provided with an appropriate knob.
Inventors
- 👤 Philip W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/02; B21J15/04; B21J15/041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
An installation tool for installing in a rivet accepting aperture an expansion rivet of the type having a head, a shank and an expander pin normally projecting from said head and adapted to be forcibly driven In an axially aligned bore in said rivet shank for expanding said shank, said installation tool comprising an elongated housing having a bore extending axially therein, a plunger slidably disposed in said bore, a portion of said bore proximate an end of said housing having a predetermined diameter for frictional engagement of said rivet expander pin therein for holding said rivet in the end of said housing for insertion of said rivet shank in said rivet accepting aperture, and means on one end of said plunger projecting from the other end of said housing for manually reciprocating said plunger relative to said housing for causing the other end of said plunger to forcibly drive said expander pin into said rivet shank for expanding said shank to install said rivet in said rivet accepting aperture.
Claim 2
Dependent Claim
170 words
An installation tool for installing in a rivet accepting aperture an expansion rivet of the type having a head, a shank and an expander pin normally projecting from said head and adapted to be forcibly driven In an axially aligned bore in said rivet shank for expanding said shank, said installation tool comprising an elongated housing having a bore extending axially therein, a plunger slidably disposed in said bore, a portion of said bore proximate an end of said housing having a predetermined diameter for frictional engagement of said rivet expander pin therein for holding said rivet in the end of said housing for insertion of said rivet shank in said rivet accepting aperture, and means on one end of said plunger projecting from the other end of said housing for manually reciprocating said plunger relative to said housing for causing the other end of said plunger to forcibly drive said expander pin into said rivet shank for expanding said shank to install said rivet in said rivet accepting aperture.
Claim 3
Dependent Claim
44 words
The installation tool of claim 1 further comprising spring bias means normally maintaining said plunger with the other end thereof retracted from the portion of the bore at the end of said housing adapted to accept said expander pin projecting from said rivet head.
Claim 4
Dependent Claim
52 words
The installation tool of claim 1 wherein said end bore portion of said housing adapted to accept said expander pin projecting from said rivet head is defined by a resilient material tubular insert mounted in said housing and having an inner diameter slightly smaller than the outer diameter of said expander pin.
Claim 5
Dependent Claim
25 words
The installation tool of claim 1 wherein said means on the end of said plunger projecting from said housing is a relatively large diameter knob.
Claim 6
Dependent Claim
58 words
The installation tool of claim 1 further comprising abutment means dependent from said plunger and said housing for limiting the displacement of said plunger to an amount sufficient for causing said expander pin to be driven in said rivet shank with the end of said pin normally projecting from said rivet head substantially flush with said rivet head.
Claim 7
Dependent Claim
73 words
The installation tool of claim 5 wherein said abutment means comprises a stationary sleeve mounted on the other end of said housing, a cylindrical member mounted on said first mentioned end of the plunger slidably disposed coaxially within said sleeve member and an annular shoulder proximate each end of said cylindrical member and each adapted for engagement with one of the ends of said sleeve member for limiting the reciprocation of said plunger.
Claim 8
Dependent Claim
19 words
The installation tool of claim 1 wherein a portion of said housing is peripherally provided with a roughened surface.
Claim 9
Dependent Claim
28 words
The installation tool of claim 1 wherein said housing has an end portion gradually tapering to a diameter at most equal to the diameter of said rivet head.
References Cited (Backward Citations)
US2430532A
Cited
US3030849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |