US4114793A — Multi-purpose stapler

Claim 1

Independent Claim 435 words

A multi-purpose stapler of the type having one mode of operation wherein hole-punching and staple-removing functions are afforded and another mode of operation wherein a stapling function is afforded, said stapler comprising: a base including a punch-receiving aperture at one end and a staple clinching die at another end, supporting bracket including a front portion fixedly mounted on said base, and a rear portion spaced from said base to define a clearance for reception of material to be punched, said rear portion including a hole aligned with said aperture, a staple magazine pivotably mounted to a rear portion of said bracket, a press handle pivotally mounted to a rear portion of said bracket and including longitudinal slots at the middle thereof, a pair of buttons slidably mounted in said slots, a punching actuator connected to said buttons and disposed within said handle for movement between first and second positions, stop means positioned on said magazine to be operably engageable with said actuator when said actuator is in said first position to limit downward movement of said handle to a first level and nonengageable with said actuator when said actuator is in said second position to allow downward movement of said handle beyond said first level to a second level, a bearing plate mounted on a rear portion of said bracket and including a hole aligned with said aperture and said hole in said bracket, a punch rod slidably received in said holes and biased away from said aperture, said punch rod positioned for being depressed downwardly beyond said aperture by a contact portion of said actuator only when said actuator is in said second position, so that hole punching may occur only when actuator is in said second position, a vertical stapling blade mounted at a front end of said press handle above a forwardmost staple in said magazine, the length of said blade being such that the blade acts downwardly against said forwardmost staple and drives it from said magazine only when said handle is moved downwardly to said second level, so that stapling occurs only when said actuator is in said second position, an upper jaw depending from a front end of said press handle forwardly of said stapling blade, a lower jaw comprising a U-shaped member including legs fixedly mounted to a front end of said staple magazine and a middle portion projecting upwardly, said upper jaw and middle portion being oriented to merge together and remove a staple when said press handle is lowered to said first level, so that staple removing occurs when said actuator is in said first position.

Claim 2

Dependent Claim 435 words

A multi-purpose stapler of the type having one mode of operation wherein hole-punching and staple-removing functions are afforded and another mode of operation wherein a stapling function is afforded, said stapler comprising: a base including a punch-receiving aperture at one end and a staple clinching die at another end, supporting bracket including a front portion fixedly mounted on said base, and a rear portion spaced from said base to define a clearance for reception of material to be punched, said rear portion including a hole aligned with said aperture, a staple magazine pivotably mounted to a rear portion of said bracket, a press handle pivotally mounted to a rear portion of said bracket and including longitudinal slots at the middle thereof, a pair of buttons slidably mounted in said slots, a punching actuator connected to said buttons and disposed within said handle for movement between first and second positions, stop means positioned on said magazine to be operably engageable with said actuator when said actuator is in said first position to limit downward movement of said handle to a first level and nonengageable with said actuator when said actuator is in said second position to allow downward movement of said handle beyond said first level to a second level, a bearing plate mounted on a rear portion of said bracket and including a hole aligned with said aperture and said hole in said bracket, a punch rod slidably received in said holes and biased away from said aperture, said punch rod positioned for being depressed downwardly beyond said aperture by a contact portion of said actuator only when said actuator is in said second position, so that hole punching may occur only when actuator is in said second position, a vertical stapling blade mounted at a front end of said press handle above a forwardmost staple in said magazine, the length of said blade being such that the blade acts downwardly against said forwardmost staple and drives it from said magazine only when said handle is moved downwardly to said second level, so that stapling occurs only when said actuator is in said second position, an upper jaw depending from a front end of said press handle forwardly of said stapling blade, a lower jaw comprising a U-shaped member including legs fixedly mounted to a front end of said staple magazine and a middle portion projecting upwardly, said upper jaw and middle portion being oriented to merge together and remove a staple when said press handle is lowered to said first level, so that staple removing occurs when said actuator is in said first position.

Claim 3

Dependent Claim 170 words

A multi-purpose stapler according to claim 1, wherein said punching actuator is shaped in the longitudinal direction as a square headed sine wave including a plurality of horizontal sections, a forwardmost section being shorter in the longitudinal direction than the other sections and situated below said other sections, a U-shaped bracket including a pair of legs mounted on said actuator, said bracket legs disposed within said press handle adjacent inside walls thereof, said buttons each including a lock projection and a horizontal pin, said buttons being mounted on said bracket legs such that said pins are directed toward one another and such that said buttons extend through said slots in said press handle, said slots including notches on an upper side thereof for receiving said lock projections of said buttons to retain said buttons in a pair of positions corresponding to said first and second positions, a coil spring disposed between and bearing against said bracket legs to urge said bracket legs against the inside walls of said press handle.

Claim 4

Dependent Claim 42 words

A multi-purpose stapler according to claim 2, wherein said staple magazine includes a pair of stopper members defining said stop means, said front sections of said actuator being arranged to abut said stopper members when said actuator is in said first position.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-09-18	1982-03-20	1982-09-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-09-18	1986-03-20	1986-09-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-09-18	1990-03-20	1990-09-19	$7700.00	Window Closed / Lapsed

Multi-purpose stapler

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag