Connecting member for lubrication system

Claim 2

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having an enlarged head portion, a shoulder longitudinally spaced therefrom and an intermediate portion of smaller cross-section than the head and the shoulder disposed between said head and shoulder, (b) a source of lubricant terminating in a threaded end portion, (c) a tubular member having a body portion, a threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores, (d) a threaded sleeve connecting the said threaded end portions together with their bores communicating with each other, said body portion having a first counterbore extending longitudinally inwardly from said opposite end of said tubular member, the longitudinal dimension of the said first counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a second counterbore between the first counterbore and the bore in the threaded end portion of the tubular member, an O-ring disposed in the second counterbore, the head and intermediate portions of said fitting being disposed in the first counterbore with the head pressing the O-ring in said second counterbore against the shoulder formed by the juncture of the second counterbore with the bore in the tubular member, and with the said shoulder of the fitting pressing against said opposite end of the tubular member, a pair of holes through the tubular member having portions of their cross-sections through the first counterbore disposed on opposite sides of the head of the fitting on that side thereof facing said intermediate portion and a clip having its legs inserted through said holes and abutting the head of the fitting thereby holding the fitting in the first counterbore in a position where the said O-ring is compressed and said shoulder of the fitting is pressed against said opposite end of the tubular member.

Claim 3

The coupling of claim 1 wherein the thickness of the O-ring is larger than the radial dimension of the shoulder formed by the juncture of the second counterbore and the bore in the tubular member whereby a portion of the O-ring is pressed into the bore.

Claim 4

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having an enlarged head portion, a shoulder longitudinally spaced therefrom and an intermediate portion of smaller cross-section than the head and the shoulder disposed between said head and shoulder, (b) a source of lubricant terminating in a threaded end portion, (c) a fitting receiving member having a body portion, a threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores, means threadably coupling said end portions together with their bores communicating with each other, said body portion having a counterbore extending longitudinally inwardly from said opposite end of said fitting receiving member, the longitudinal dimension of the said counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a compressible resilient sealing means disposed in the counterbore, the head and intermediate portions of said fitting being disposed in the counterbore with the head compressing the sealing means in said counterbore against the shoulder formed by the juncture of the counterbore with the bore in the fitting receiving member, a pair of holes through the fitting receiving member having portions of their cross-sections through the counterbore disposed on opposite sides of the head of the fitting on that side thereof facing said intermediate portion and a removable retainment means inserted through said holes and abutting the head of the fitting thereby securing the said head in the counterbore in a position where said sealing means is compressed.

Claim 5

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having an enlarged head portion, a shoulder longitudinally spaced therefrom and an intermediate portion of smaller cross-section than the head and the shoulder disposed between said head and shoulder, (b) a source of lubricant terminating in a threaded end portion, (c) a fitting receiving member having a body portion, a threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores, means threadably coupling said end portions together with their bores communicating with each other, said body portion having a counterbore extending longitudinally inwardly from said opposite end of said fitting receiving member, the longitudinal dimension of the said counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a compressible resilient sealing means disposed in the counterbore, the head and intermediate portions of said fitting being disposed in the counterbore with the head compressing the sealing means in said counterbore against the shoulder formed by the juncture of the counterbore with the bore in the fitting receiving member, a pair of holes through the fitting receiving member having portions of their cross-sections through the counterbore disposed on opposite sides of the head of the fitting on that side thereof facing said intermediate portion and a removable retainment means inserted through said holes and abutting the head of the fitting thereby securing the said head in the counterbore in a position where said sealing means is compressed.

Claim 6

The connecting member of claim 3 wherein said sealing means is an elastomeric O-ring.

Claim 7

The connecting member of claim 3 wherein the bore of the feed line member communicates in a substantially coaxial relationship with the bore of said fitting receiving member.

Claim 8

The connecting member of claim 3 wherein the bore of the feed line member communicates in a substantially angular relationship with the bore of said fitting receiving member.

Claim 9

The connecting member of claim 3 wherein said removable retainment means comprises a pair of elongate pins.

Claim 10

The connecting member of claim 3 wherein said removable retainment means comprises a clip having a substantially U-shaped form.

Claim 11

The connecting member of claim 3 wherein said removable retainment means comprises a wire clip.

Claim 12

The coupling of claim 3 wherein the thickness of the sealing means is larger than the radial dimension of the shoulder formed by the juncture of the counterbore and the bore in the tubular member whereby a portion of the sealing means is pressed into the bore.

Claim 13

The coupling as in claim 3 wherein the said fitting is held in pressing engagement with the opposite end of the fitting receiving member by said retainment means.

Claim 14

The coupling of claim 3 wherein said threaded end portions are coupled together via a threaded sleeve connecting said threaded end portions together.

Claim 15

The coupling of claim 3 wherein said counterbore comprises a first counterbore extending longitudinally inwardly from said opposite end of said fitting receiving member and having a longitudinal dimension about equal to the longitudinal dimension of said head and said intermediate portion of the fitting and a second counterbore between said first counterbore and the bore in the threaded end portion of the fitting receiving member, said compressible resiliant sealing means being disposed in said second counterbore, the head and intermediate portions of said fitting being disposed in the first counterbore with the head compressing the sealing means in said second counterbore against the shoulder formed by the juncture of the second counterbore with the bore in the fitting receiving member, said pair of holes having portions of their cross-sections through said first counterbore.

Claim 16

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having at one end thereof an enlarged head portion having a side thereof for receiving the lubricant and a side opposite thereto which faces away from the lubricant receiving side towards an intermediate portion of the fitting of smaller cross-section than the head and disposed longitudinally therefrom between the head and a shoulder on the fitting which faces towards the said opposite side, (b) a source of lubricant terminating in an externally threaded end portion, (c) a connecting member having a body portion, an externally threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores, (d) an internally threaded sleeve connecting the said threaded end portions together with their bores communicating with each other, said body portion having a first counterbore extending longitudinally inwardly from said opposite end of said connecting member, the longitudinal dimension of the said first counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a second counterbore between the first counterbore and the bore in the threaded end portion of the connecting member, an O-ring disposed in the second counterbore, the head and intermediate portions of said fitting being disposed in the first counterbore with the head compressing the O-ring in said second counterbore against the shoulder formed by the junction of the second counterbore with the bore in the connecting member, and with the said shoulder of the fitting pressing against said opposite end of the connecting member, a pair of holes through the connecting member having portions of their cross-sections through the first counterbore disposed on opposite sides of the head of the fitting on the said side thereof facing said intermediate portion, and a clip having its legs inserted through said holes and against the said opposite side of the head in such a manner as to secure the lubricant-receiving side of the head in the first counterbore in a position where it compresses said O-ring and prevents longitudinal movement between the fitting and the connecting member.

Claim 17

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having at one end thereof an enlarged head portion having a side thereof for receiving the lubricant and a side opposite thereto which faces away from the lubricant receiving side towards an intermediate portion of the fitting of smaller cross-section than the head and disposed longitudinally therefrom between the head and a shoulder on the fitting which faces towards the said opposite side, (b) a source of lubricant terminating in an externally threaded end portion, (c) a connecting member having a body portion, an externally threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores, (d) an internally threaded sleeve connecting the said threaded end portions together with their bores communicating with each other, said body portion having a first counterbore extending longitudinally inwardly from said opposite end of said connecting member, the longitudinal dimension of the said first counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a second counterbore between the first counterbore and the bore in the threaded end portion of the connecting member, an O-ring disposed in the second counterbore, the head and intermediate portions of said fitting being disposed in the first counterbore with the head compressing the O-ring in said second counterbore against the shoulder formed by the junction of the second counterbore with the bore in the connecting member, and with the said shoulder of the fitting pressing against said opposite end of the connecting member, a pair of holes through the connecting member having portions of their cross-sections through the first counterbore disposed on opposite sides of the head of the fitting on the said side thereof facing said intermediate portion, and a clip having its legs inserted through said holes and against the said opposite side of the head in such a manner as to secure the lubricant-receiving side of the head in the first counterbore in a position where it compresses said O-ring and prevents longitudinal movement between the fitting and the connecting member.

Claim 18

The coupling of claim 14 where a portion of the compressed O-ring extends into the bore of the connecting member.

Claim 19

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having at one end thereof an enlarged head portion having a side thereof for receiving the lubricant and a side opposite thereto which faces away from the lubricant-receiving side towards an intermediate portion of the fitting of smaller cross-section than the head and disposed longitudinally therefrom between the head and a shoulder on the fitting which faces towards the said opposite side, (b) a source of lubricant terminating in a threaded end portion, (c) a fitting connecting member having a body portion, a threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores and being coupled together with their bores communicating with each other, said body portion having a counterbore extending longitudinally inwardly from said opposite end of said fitting connecting member, the longitudinal dimension of the said counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a compressible resilient sealing means disposed in the counterbore, the head and intermediate portions of said fitting being disposed in the counterbore with the lubricant-receiving side of the head compressing the sealing means in said counterbore against the shoulder formed by the juncture of the counterbore with the bore in the fitting connecting member, a pair of holes through the fitting connecting member having portions of their cross-sections through the counterbore disposed on opposite sides of the head of the fitting on the said side thereof facing said intermediate portion, and a removable retainment means inserted through said holes and against the said opposite side of the head in such a manner as to secure the lubricant-receiving side of the head in the counterbore in a position where it compresses said sealing means and prevents longitudinal movement between the fitting and the connecting member.

Claim 20

A coupling for a lubricating device comprising (a) a lubricant-receiving fitting having at one end thereof an enlarged head portion having a side thereof for receiving the lubricant and a side opposite thereto which faces away from the lubricant-receiving side towards an intermediate portion of the fitting of smaller cross-section than the head and disposed longitudinally therefrom between the head and a shoulder on the fitting which faces towards the said opposite side, (b) a source of lubricant terminating in a threaded end portion, (c) a fitting connecting member having a body portion, a threaded end portion and an opposite end, said threaded end portions having longitudinally extending bores and being coupled together with their bores communicating with each other, said body portion having a counterbore extending longitudinally inwardly from said opposite end of said fitting connecting member, the longitudinal dimension of the said counterbore being about equal to the longitudinal dimension of said head and said intermediate portion of the fitting, a compressible resilient sealing means disposed in the counterbore, the head and intermediate portions of said fitting being disposed in the counterbore with the lubricant-receiving side of the head compressing the sealing means in said counterbore against the shoulder formed by the juncture of the counterbore with the bore in the fitting connecting member, a pair of holes through the fitting connecting member having portions of their cross-sections through the counterbore disposed on opposite sides of the head of the fitting on the said side thereof facing said intermediate portion, and a removable retainment means inserted through said holes and against the said opposite side of the head in such a manner as to secure the lubricant-receiving side of the head in the counterbore in a position where it compresses said sealing means and prevents longitudinal movement between the fitting and the connecting member.

Claim 21

The coupling of claim 16 wherein a portion of the compressed O-ring extends into the bore of the connecting member.

Claim 22

The coupling of claim 16 wherein the shoulder of said fitting presses against the opposite end of the fitting connecting member.