SNAP RING INSTALLATION TOOL

Information

  • Patent Application
  • 20070204451
  • Publication Number
    20070204451
  • Date Filed
    March 02, 2007
    18 years ago
  • Date Published
    September 06, 2007
    17 years ago
Abstract
A snap ring installation tool which includes a finger gripping portion having a front side, a rear side, a left side, a right side, a lower end, and an upper end; a middle portion having a front side, a rear side, a left side, a right side, a lower end which is generally integral with said finger gripping portion upper end, and an upper end which terminates in a ledge; an arcuate open cylindrical portion disposed on said upper end of said middle portion and having an interior surface and a predetermined radius of curvature matching that of the snap ring for which it is to be used; and a left stop wall and a right stop wall disposed on said interior surface of said open cylindrical portion and separated a predetermined distance.
Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The invention will be better understood and objects and advantages other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:



FIG. 1A is a lower left front perspective of a first preferred embodiment of the snap ring tool of the present invention;



FIG. 1B is a lower left rear perspective view thereof;



FIG. 2A is a top plan view thereof, showing a snap ring in its relaxed condition positioned above the snap ring tool shown in FIGS. 1A and 1B, shown laid on a surface;



FIG. 2B is a top plan view of the snap ring of FIG. 2A in its expanded condition;



FIG. 3A is a bottom perspective view of the snap ring tool holding an expanded snap ring and poised for installation on a sink drain flange;



FIG. 3B is a bottom perspective view of the snap ring tool holding an expanded snap ring immediately prior to release onto a sink drain flange;



FIG. 4A is a schematic cross-section sectional side view in elevation, taken along line 4A-4A in FIG. 3B;



FIG. 4B is a schematic cross-sectional side view in elevation showing the motion of the snap ring tool that effects the release of the snap ring onto a flange;



FIG. 4C is a schematic cross-sectional side view in elevation with the disposer mounting ring in place capturing the snap ring;



FIG. 5A is a schematic cross-sectional side view in elecation showing an alternative preferred embodiment of snap ring tool holding a snap ring over a clothes dryer exhaust flange and dryer hose;



FIG. 5B is a schematic cross-sectional view showing the snap ring tool of FIG. 5A releasing a snap ring onto a clothes dryer hose holding it in place on the dryer exhaust flange.


Claims
  • 1. A snap ring installation tool, comprising: a finger gripping portion having a front side, a rear side, a left side, a right side, a lower end, and an upper end;a middle portion having a front side, a rear side, a left side, a right side, a lower end which is generally integral with said finger gripping portion upper end, and an upper end which terminates in a ledge;an arcuate open cylindrical portion disposed on said upper end of said middle portion and having an interior surface and a predetermined radius of curvature matching that of the snap ring for which it is to be used; anda left stop wall and a right stop wall disposed on said interior surface of said open cylindrical portion and separated a predetermined distance.
  • 2. The snap ring installation tool of claim 1, further including a medial spacer disposed on said interior surface of said open cylindrical portion, and wherein said left stop wall and said right stop wall comprise the ends of said medial spacer.
  • 3. The snap ring installation tool of claim 2, wherein said medial spacer is generally centered on said interior surface of said open cylindrical portion.
  • 4. The snap ring installation tool of claim 1, wherein said finger gripping portion is generally arcuate from said right side to said left side.
  • 5. The snap ring installation tool of claim 1, wherein said finger gripping portion is concave on its front side from its upper end to its lower end.
  • 6. The snap ring installation tool of claim 1, wherein said finger gripping portion is concave on its front side from its upper end to its lower and from its right side to its left side.
  • 7. The snap ring installation tool of claim 1, wherein said middle portion is concave on its front side from its upper end to its lower end.
  • 8. The snap ring installation tool of claim 1, wherein said middle portion is concave on its front side from its right side to its left side.
  • 9. The snap ring installation tool of claim 1, wherein said middle portion is concave on its front side from its upper end to its lower end and from its right to its left side.
  • 10. The snap ring installation tool of claim 1, further including a left arcuate projection and a right arcuate projection, each disposed proximate said lower end of said middle portion and said upper end of said finger gripping portion.
  • 11. A method of installing a snap ring over an open pipe end, wherein the snap ring has slight separated first and second ends, comprising the steps of: providing a snap ring installation tool having a finger gripping portion with a front side, a rear side, a left side, a right side, a lower end, and an upper end; a middle portion having a front side, a rear side, a left side, a right side, a lower end which is generally integral with the finger gripping portion upper end, and an upper end which terminates in a shelf, an arcuate open cylindrical portion disposed on the upper end of the middle portion and having an interior surface and a predetermined radius of curvature matching that of the snap ring for which it is to be used; and a left stop wall and a right stop wall disposed on the interior surface of the open cylindrical portion and separated a predetermined distance;placing the tool with its front side facing up and using both hands to stretch the snap ring ends further apart;stretching the snap ring and approximating the snap ring ends to the stop walls so that the tension in the ring cooperates with the arcuate interior surface of the open cylindrical portion and the shelf to hold the ring on the tool extending generally radially relative to the front side of the tool;placing the snap ring over the open pipe end; andpivoting the snap ring tool about the bottom edge of the pipe by pulling the finger gripping portion toward the center of the pipe.
Provisional Applications (1)
Number Date Country
60778717 Mar 2006 US