US3753524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stapler device
Assignee: Individual
•
Filing: 1972-02-10
•
Granted: 1973-08-21
•
Expires: 1992-02-10
Abstract
Abstract A hand-operated staple-driving tool having a multi-stage operating movement of the operating handle resulting in a first cocked position of the staple-driving mechanism achieved through the employment of a latch pin operable after a predetermined length of travel of the staple-driving mechanism by compression movement on the handle, and a positive releasing of the latch pin upon successive movement of the handle after operating the staple-driving mechanism; such construction and function requiring less compression force for each handle movement and thus resulting in easier yet effective operation of the tool.
Inventors
- 👤 H Heyward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
B; B25; B25C; B25C5/00; B25C5/06; B25C5/02; B25C5/0221; B25C5/0257; B25C5/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
164 words
A stapler device including a housing for a spring-driven staple-driving plunger and providing a hand-grip portion to which is pivotally connected a compressible handle, wherein the improvement comprises a. a plunger-carrying ram within the body of the device and movable in a predetermined path therein, b. a ram-moving means in contact with the handle and in releasable contact with said ram for moving the same in one direction against the spring, c. means for holding said ram in one position and against movement by its spring in an opposite direction after said ram has been moved a predetermined distance by said ram-moving means, d. means on said holding means releasing said holding means from said ram during subsequent further movement of said ram in one direction by said ram-moving means, and e. means for preventing engagement between said holding means and said ram when the latter is moved by its spring in a staple-driving direction after said ram-moving means is released from said ram.
Claim 2
Dependent Claim
164 words
A stapler device including a housing for a spring-driven staple-driving plunger and providing a hand-grip portion to which is pivotally connected a compressible handle, wherein the improvement comprises a. a plunger-carrying ram within the body of the device and movable in a predetermined path therein, b. a ram-moving means in contact with the handle and in releasable contact with said ram for moving the same in one direction against the spring, c. means for holding said ram in one position and against movement by its spring in an opposite direction after said ram has been moved a predetermined distance by said ram-moving means, d. means on said holding means releasing said holding means from said ram during subsequent further movement of said ram in one direction by said ram-moving means, and e. means for preventing engagement between said holding means and said ram when the latter is moved by its spring in a staple-driving direction after said ram-moving means is released from said ram.
Claim 3
Dependent Claim
87 words
A stapler device as defined by claim 1, wherein said ram-moving means comprises a pivotal lift finger having connections to said handle and with said ram during a portion of its pivotal movement so as to move said ram in said one direction against its spring when the handle is compressed upon the hand-grip portion of the device and adapted to be released from contact with said ram when said holding means engages said ram after it has been moved a predetermined distance by said lift finger.
Claim 4
Dependent Claim
65 words
A stapler device as defined by claim 1 wherein said holding means comprises a latch pin pivotally carried within the hhousing of the device and having a free end in contact with a portion of said ram and adapted to project into an opening formed in such portion of the ram for releasably latching said ram against movement in said opposite direction by its spring.
Claim 5
Dependent Claim
65 words
A stapler device as defined by claim 2, wherein said holding means comprises a latch pin pivotally carried within the housing of the device and having a free end in contact with a portion of said ram and adapted to project into an opening formed in such portion of the ram for releasably latching said ram against movement in said opposite direction by its spring.
Claim 6
Dependent Claim
69 words
A stapler device as defined by claim 1 wherein said means for preventing contact between said holding means and said ram comprises a ramplike member carried by said ram in the path of said holding means as the latter contacts the ram during its movement in said opposite direction by its spring, with said ramplike member pivoting said holding means out of contact with said ram during such movement.
Claim 7
Dependent Claim
87 words
A stapler device as defined by claim 5, wherein said ram-moving means comprises a pivotal lift finger having connections to said handle and with said ram during a portion of its pivotal movement so as to move said ram in said one direction against its spring when the handle is compressed upon the hand-grip portion of the device and adapted to be released from contact with said ram when said holding means engages said ram after it has been moved a predetermined distance by said lift finger.
Claim 8
Dependent Claim
73 words
A stapler device as defined by claim 3, wherein said means for preventing contact between said latch pin and said ram comprises a ramplike member carried by said ram in the path of the free end of said latch pin as the latter contacts the ram during its movement in said opposite direction by its spring, with said ramplike member pivoting said latch pin out of contact with said ram during such movement.
Claim 9
Dependent Claim
44 words
A stapler device as defined by claim 1 further characterized by the inclusioN of an indicator carried by said ram for visually indicating the latched position of said ram after it has been moved a predetermined distance in one direction by said ram-moving means.
Claim 10
Dependent Claim
44 words
A stapler device as defined by claim 5 further characterized by the inclusion of an indicator carried by said ram for visually indicating the latched position of said ram after it has been moved a predetermined distance in one direction by said ram-moving means.
References Cited (Backward Citations)
US1845617A
Cited
US3199185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |