Patent US3602414A successfully refreshed from Google Patents.
US3602414A
Expired / Lapsed
US
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Dispenser for belt-type staples
Assignee: Swingline Inc
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Filing: 1969-01-14
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Granted: 1971-08-31
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Expires: 1989-01-14
Abstract
Abstract Improvements to a dispenser for belt-type staples having a container and feed mechanism operatively connected therewith are shown. The improvements include a control spring which has a portion at one end thereof adapted to abut the belt and prevent retrograde movement thereof.
Inventors
- 👤 Jack Garfinkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/17; B27F7/38
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
174 words
A dispenser structure comprising, in combination, a container provided with an outlet opening therewithin, a roll of interconnected elongated staple blanks in the form of a belt disposed within said container with a portion of the said roll normally disposed within said outlet opening, a pair of reciprocatingly movable feed pawls operatively connected with said container and adjacent opposite sides of said outlet opening, said feed pawls being adapted to move said belt of staple blanks forwardly, an integral leaf spring member abutting said feed pawls, said leaf spring member having the dual function of controlling said feed pawls and preventing retrograde movement of said belt, said spring also being formed with a first pair of spaced offset portions at its front portion and a second pair of spaced offset portions at its rear portion, said first pair of offset portions biasing said feed pawls forwardly and said second pair of offset portions adapted to abut said belt of staple blanks rearward of the leading blank and thus prevent retrograde movement of said belt.
Claim 2
Dependent Claim
174 words
A dispenser structure comprising, in combination, a container provided with an outlet opening therewithin, a roll of interconnected elongated staple blanks in the form of a belt disposed within said container with a portion of the said roll normally disposed within said outlet opening, a pair of reciprocatingly movable feed pawls operatively connected with said container and adjacent opposite sides of said outlet opening, said feed pawls being adapted to move said belt of staple blanks forwardly, an integral leaf spring member abutting said feed pawls, said leaf spring member having the dual function of controlling said feed pawls and preventing retrograde movement of said belt, said spring also being formed with a first pair of spaced offset portions at its front portion and a second pair of spaced offset portions at its rear portion, said first pair of offset portions biasing said feed pawls forwardly and said second pair of offset portions adapted to abut said belt of staple blanks rearward of the leading blank and thus prevent retrograde movement of said belt.
Claim 3
Dependent Claim
25 words
A dispenser as described in claim 1, said second pair of offset portions being substantially right angularly disposed with respect to said leaf spring member.
Claim 4
Dependent Claim
14 words
A dispenser as described in claim 2, said leaf spring member being substantially U-shaped.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |