Articulated seal puller system

Abstract

A tool is formed of an upper component and a lower component. An intermediate component is formed of a first plate and a parallel second plate. The first plate and the second plate span the lower end of the upper component forming an upper pivot point and span the upper end of the lower component forming a lower pivot point. A foot is integrally formed with and extends r the lower component. A handle is formed of a cross piece with a central extent from the lower component adjacent to the lower end of extent central extent being attached to the upper end of the upper component.

Claims

1. An articulated seal puller system (10) for pulling a seal (12) of a lubrication assembly for lubricating purposes, the lubrication assembly including an axle (20) and a rigid cylinder (16) with the seal (12) there between, the system (10) comprising, in combination: the lubrication assembly including the opening (14) at the end of the rigid cylinder (16) with the seal (12) creating interfaces (18) between the seal (12) and both the rigid cylinder (16) and the axle (20), the seal (12) being fabricated with a surface of an elastomeric material; a tool (22) formed of an upper component (24) and a lower component (26), the upper component (24) having an upper end (28) and a lower end (30), the lower component (26) having an upper end (32) and a lower end (34), an intermediate component (36) consisting of a planar first plate (38) and a planar parallel second plate (40), the first plate and the second plate spanning the lower end (30) of the upper component (24) and the upper end (32) of the lower component (26), an upper aperture (42) extending through the first plate and the second plate, a lower aperture (44) extending through the first plate and the second plate, an upper pin (46) extending through the upper aperture, a lower pin (48) extending through the lower aperture, the upper pin and the lower pin being separated by 0.50 inches, plus or minus 10 percent, the upper component (24) and the lower component (26) being separated by 0.125 inches, plus or minus 10 percent, when the upper component (24) and the lower component (26) are axially aligned; a foot (52) formed integrally with the lower component (26) adjacent to the lower end (34) of the lower component (26), the foot (52) extending radially outwardly from the lower component (26), the foot (52) extending linearly perpendicular to the upper pin and the lower pin, the foot having a flat lower face coextensive with the lower end (34) of the lower component (26), the foot (52) having a curved upper face, the foot (52) having an inner end (54) with a radius of curvature equal to the radius of curvature of the lower component (26), the foot having an outer end (56) in a semi-circular configuration with a radius of curvature less than the radius of curvature of the inner end (54), the inner end (54) of the foot (52) having a first height, the outer end (56) of foot (52) having a second height less than the first height; a handle (60) formed of a cross piece with a central extent, the central extent being attached to the upper end (28) of the upper component (24); and a slide hammer formed as a weight (104) slidably mounted on the upper component (24), the weight (104) adapted to be reciprocated by a user to apply a repeating upward force to the tool (22), the tool (22) also including a spacer (108) on the upper component (24) adjacent to the handle (60) to preclude unintended striking of a user's fingers during use; and the upper component (24) being formed of a top section (62) and a bottom section (64), the top section (62) terminating below with downwardly extending male screw threads (68), the bottom section (64) terminating above with an upwardly facing recess with female screw threads (70), the downwardly extending male screw threads (68) and the upwardly facing female screw threads (70) adapted to facilitate coupling prior to operation and use, and adapted to facilitate uncoupling prior to storage and transportation, the weight (104) being slidable over the top and bottom sections (62, 64) of the upper component (24).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be better understood and objects 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:

(2) FIG. 1 is a perspective illustration of an articulated seal puller system constructed in accordance with the principles of the present invention, the system being shown pulling a seal on an exterior rigid cylinder, an interior axle not being shown.

(3) FIG. 2 is a front elevational view of the articulated seal puller system shown in FIG. 1.

(4) FIG. 3 is a side elevational view of the system taken along line 3-3 of FIG. 2.

(5) FIG. 4 is an enlarged side elevational view of the lower extent of the system shown in FIG. 1, the system being shown pulling a seal on an interior axle, an exterior cylinder not being shown.

(6) FIG. 5 is an enlarged side elevational view of the lower extent of the system shown in FIGS. 1 and 4 constructed in accordance with an alternate embodiment of the invention.

(7) FIG. 6 is an enlarged front elevational view of the central extent of the system taken along line 6-6 of FIG. 1.

(8) FIG. 7 is a cross sectional view of the system taken along line 7-7 of FIG. 6.

(9) FIG. 8 is an exploded side elevational view illustrating the lower component adapted to be coupled to the upper component of the primary and also illustrating an alternate embodiment of the invention.

(10) FIG. 9 is a cross sectional view taken along line 9-9 of FIG. 3.

(11) The same reference numerals refer to the same parts throughout the various Figures.

DESCRIPTION OF THE PREFERRED EMBODIMENT

(12) With reference now to the drawings, and in particular to FIG. 1 thereof, the preferred embodiment of the new and improved articulated seal puller system embodying the principles and concepts of the present invention and generally designated by the reference numeral 10 will be described.

(13) The present invention, the articulated seal puller system 10 is comprised of a plurality of components. Such components in their broadest context include a tool, a foot, and a handle. Such components are individually configured and correlated with respect to each other so as to attain the desired objectives.

(14) From a specific perspective, the invention of the present application is an articulated seal puller system 10 for pulling a failed seal 12 of a lubrication assembly. Such a seal, in the disclosed embodiment, fills an opening 14 between a rigid cylinder 16 and an axle 20. The pulling of the seal is done in a safe, convenient, and economical manner. Although the present invention is disclosed as a seal puller, it should be appreciated that the puller of the present invention is capable of pulling bearings and bushings and the like pressed in a recess or on a shaft.

(15) First provided in the preferred embodiment is a lubrication assembly. The lubrication assembly includes an axle 20 and a rigid cylinder 16 with the seal 12 there between. The lubrication assembly also includes the opening 14 at the end of the rigid cylinder. Interfaces 18 are formed between the seal and both the rigid cylinder and the axle. The seal is fabricated with a surface of an elastomeric material.

(16) Next provided is a tool 22 formed of an upper component 24 and a lower component 26. The upper component has an upper end 28 and a lower end 30. The lower component has an upper end 32 and a lower end 34. An intermediate component 36 is provided. The intermediate component is formed of a first plate 38 and a parallel second plate 40. The first plate and the second plate span the lower end of the upper component. The first plate and the second plate span the upper end of the lower component. An upper aperture 42 extends through the first plate and the upper component and the second plate. A lower aperture 44 extends through the first plate and the lower component and the second plate. An upper pin 46 and a lower pin 48 are provided. The upper pin 46 extends through the upper aperture. The lower pin 48 extends through the lower aperture. The upper pin and the lower pin are separated by 0.50 inches, plus or minus 10 percent, and the upper component and the lower component are separated by 0.125 inches, plus or minus 10 percent, when the upper component and the lower component are axially aligned.

(17) A foot 52 is next provided. The foot is integrally formed with the lower component adjacent to the lower end of the lower component. The foot has a flat lower face coextensive with the lower end of the lower component. The foot has a curved upper face. The foot has an inner end 54 with a radius of curvature equal to the radius of curvature of the lower component. The foot has an outer end 56 in a semi-circular configuration with a radius of curvature less than the radius of curvature of the inner end. The inner end of foot has a first height. The outer end of foot has a second height which is less than the first height.

(18) Next provided is a handle 60. The handle is formed of a cross piece with a central extent. The central extent is attached to the upper end of the upper component.

(19) The upper component is formed of a top section 62 and a bottom section 64. The top section 62 terminates below with downwardly extending male screw threads 68. The bottom section 64 terminates above with an upwardly facing recess with female screw threads 70. The downwardly extending male screw threads and the upwardly facing female screw threads are adapted to facilitate coupling prior to operation and use and to facilitate uncoupling prior to storage and transportation.

(20) In an alternate embodiment of the system 100, a weight 104 is provided. The weight is slidably mounted on the upper component. The weight is adapted to be reciprocated by a user to apply a repeating upward force to the tool at the handle. In this embodiment, the system also includes a spacer 108 on the upper component adjacent to the handle to preclude unintended striking of a user's fingers during use.

(21) As to the manner of usage and operation of the present invention, the same should be apparent from the above description. Accordingly, no further discussion relating to the manner of usage and operation will be provided.

(22) With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

(23) Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.