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US3810495A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic stapling system

Assignee: CONTINENTAL DRILLING CO
•
Filing: 1973-02-12
•
Granted: 1974-05-14
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Expires: 1993-02-12
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Abstract

Abstract A stapling machine for automatically clamping a locking staple around a pair of rods. A pair of gripping jaws each have a first point pivotally fixed to the machine. A driver arm operates to close the jaws at different rates of speed, securing the staple around the rods. A finger is connected to the driver arm for positioning the staple adjacent the rods upon closure of the jaws. A solenoid which actuates the driver arm also spring loads a mechanism. The spring loaded mechanism opens the jaws after the staple has been secured around the rods. A staple housing holds a plurality of staples therein. Each time the jaws are opened, the spring loading mechanism positions the front staple in the staple housing for the next operation. The staple includes an elongated member having a curved portion interconnecting a first end and a head end. The head end has an eyelet area into which the first end is inserted and crimped when the staple is positioned around the rods.

Inventors

  • 👤 K Pack

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 03:54
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/162; E04C5/166; E04G; E04G21/00; E04G21/12; E04G21/122; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53478; Y10T29/53483; Y10T29/53522; Y10T29/53709; Y10T29/53783

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 81 words
Apparatus for automatically clamping a staple around a pair of rods comprising: a pair of gripping jaws each having a first point pivotally fixed to said apparatus; driver means for closing each of said jaws at different rates of speed and securing the staple around the rods; and a pair of linkages pivotally connected at one end to the drive means and at the opposite end thereof, each pivotally fixed to a second point on one of the gripping jaws, respectively.
Claim 2
Dependent Claim 81 words
Apparatus for automatically clamping a staple around a pair of rods comprising: a pair of gripping jaws each having a first point pivotally fixed to said apparatus; driver means for closing each of said jaws at different rates of speed and securing the staple around the rods; and a pair of linkages pivotally connected at one end to the drive means and at the opposite end thereof, each pivotally fixed to a second point on one of the gripping jaws, respectively.
Claim 3
Dependent Claim 27 words
Apparatus in accordance with claim 1 and further comprising means connected to said driver means for positioning said staple adjacent said rods upon closure of said jaws.
Claim 4
Dependent Claim 23 words
Apparatus in accordance with claim 1 and further comprising actuating means for imparting motion to said drive means wherein said jaws are closed.
Claim 5
Dependent Claim 13 words
Apparatus in accordance with claim 3 wherein said actuating means includes a solenoid.
Claim 6
Dependent Claim 45 words
Apparatus in accordance with claim 3 and further comprising a spring loading mechanism which is loaded by said actuating means upon closure of said jaws, said spring loading mechanism opening said jaws after said actuating means no longer imparts forward motion to the driver means.
Claim 7
Dependent Claim 44 words
Apparatus in accordance with claim 5 and further comprising a staple housing secured to said apparatus for holding a plurality of staples therein, said spring loading mechanism positioning one of said staples in said housing adjacent said jaws each time said jaws are opened.
Claim 8
Dependent Claim 34 words
Apparatus in accordance with claim 6 wherein a plurality of magnets are positioned on said apparatus, said magnets enabling said staple to be correctly positioned adjacent said jaws each time said jaws are opened.

References Cited (Backward Citations)

US2391891A Cited
US2453872A Cited
US2692384A Cited
US2845108A Cited
US3068485A Cited
US3454250A Cited
US3584496A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-05-13 1977-11-12 1978-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-05-13 1981-11-12 1982-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-05-13 1985-11-12 1986-05-14 $7700.00 Window Closed / Lapsed

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