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US 6,196,270 B1Granted
Thread protector
AssigneeDrilltec Patents & Technologies Company, Inc.
InventorsDarrell R. Richards, Colin Rush, William Thornton, Henry Campbell King, Vincent Danko Grbic, Edgar Von Rosenberg
Life of this patent
Estimating the term…
Abstract
A thread protector for protecting threads on the end of a pipe includes a base portion, a threaded portion extending axially from a first end of the base portion and threadably engageable with the pipe and an elongated annular bumper extending axially from a second end of the base portion. The elongated bumper has an average length and width such that the ratio of the length to the width is at least 2. The base and elongated bumper have a total length of at least two inches.
Claims27
A protector for protecting the end of a pipe, comprising:
- a body;
- said body having a connector to connect with the pipe, said connector having a wall with a thickness;
- said body having a bumper;
- said bumper having a configuration with a solid annular portion extending axially a distance greater than said wall thickness and being made of a substantially non-metallic material;
- and
- said configuration and material being capable of dissipating 1200 ft/lbs of energy at ambient temperature and at 150° F.
3 more elements
A protector for protecting the end of a pipe, comprising:
- a body;
- said body having a connector to connect with the pipe;
- said body having a bumper;
- said bumper having a configuration and being made of a substantially non-metallic material;
- said configuration and material being capable of dissipating 1200 ft/lbs of energy at ambient temperature and at 150° F.;
- said material being a high density polyethylene having the izod impact strength and the compressive properties of HHM 5502.
3 more elements
A protector for protecting the end of a pipe, comprising:
- a body;
- said body having a connector to connect with the pipe;
- said body having a bumper;
- said bumper having a configuration and being made of a substantially non-metallic material;
- said configuration and material being capable of dissipating 1200 ft/lbs of energy at ambient temperature and at 150° F.;
- said body having a base portion;
- said connector being a threaded portion extending axially from a first end of said base portion and engageable with the pipe, and
- said bumper being an elongated annular member extending axially from a second end of said base portion and having an average length and average thickness, said average length being at least about 1.1 inches and the ratio of said average length to said average thickness being at least about 1.2.
5 more elements
A thread protector for protecting threads on a pipe, comprising:
- a base portion having a first length and first and second ends;
- a threaded portion extending axially from said first end of said base portion and threadably engageable with the pipe;
- an elongated annular bumper extending axially from said second end of said base portion and having an average length;
- and
- said first length and said average length totaling at least two inches.
2 more elements
A thread protector for protecting threads on a pipe, comprising:
- a base portion having first and second ends;
- a threaded portion extending axially from said first end of said base portion and threadably engageable with the pipe;
- and
- an elongated annular bumper extending axially from said second end of said base portion and having an average length and an average width, wherein the ratio of said average length to said average width is at least 2.
1 more element
A thread protector for protecting threads on a pipe, comprising:
- a base portion having first and second ends;
- a threaded portion extending axially from said first end of said base portion and threadably engageable with the pipe;
- and
- an elongated annular bumper extending axially from said second end of said base portion, said elongated annular bumper having a maximum length and a maximum width, said elongated annular bumper having a cross-section which is less than 80% of said maximum length times said maximum width.
1 more element
A thread protector for protecting threads on a pipe having a terminal end, comprising:
- a body having an axially extending threaded portion adapted for threadingly engaging the threads of the pipe;
- said body having a shoulder adapted for abutting the terminal end of the pipe upon threading the threaded portion onto the pipe;
- an elongated annular projection extending axially from said shoulder to form an annular end, said annular projection being made of a substantially non-metallic material;
- said elongated annular projection being non-corrugated except for notches used for threading said threaded portion;
- and
- said annular projection being capable of absorbing an impact of 1200 ft/lbs of energy on said annular end at ambient temperature and at 150° F.
3 more elements
A thread protector for protecting threads on a pipe having a terminal end, comprising:
- a body having an axially extending threaded portion adapted for threadingly engaging the threads of the pipe;
- said body having a shoulder adapted for abutting the terminal end of the pipe upon threading the threaded portion onto the pipe;
- an elongated annular projection extending axially from said shoulder to form an annular end, said annular projection being made of a substantially non-metallic material;
- said annular projection being capable of absorbing an impact of 1200 ft/lbs of energy on said annular end at ambient temperature and at 150° F.;
- and
- said material having an izod impact break point of about 5.6 ft-lb/inch.
3 more elements
A thread protector for protecting threads on a pipe having a terminal end, comprising:
- a body having an axially extending threaded portion adapted for threadingly engaging the threads of the pipe;
- said body having a shoulder adapted for abutting the terminal end of the pipe upon threading the threaded portion onto the pipe;
- an elongated annular projection extending axially from said shoulder to form an annular end, said annular projection being made of a substantially non-metallic material;
- said annular projection being capable of absorbing an impact of 1200 ft/lbs of energy on said annular end at ambient temperature and at 150° F.;
- and
- said annular projection including a base and a protruding end, said protruding end having an average length and average thickness, said average length being at least about 1.1 inches and the ratio of said average length to said average thickness being at least about 1.2.
3 more elements
A thread protector for protecting threads on a pipe having a terminal end, comprising:
- a body having an axially extending threaded portion adapted for threadingly engaging the threads of the pipe;
- said body having a shoulder adapted for abutting the terminal end of the pipe upon threading the threaded portion onto the pipe;
- an elongated annular projection extending axially from said shoulder to form an annular end, said annular projection being made of a substantially non-metallic material;
- said annular projection being capable of absorbing an impact of 1200 ft/lbs of energy on said annular end at ambient temperature and at 150° F.;
- and
- said annular projection including a base and a protruding end, said protruding end having an average length and an average width, wherein the ratio of said average length to said average width is at least 2.
3 more elements
A thread protector for protecting threads on a pipe having a terminal end, comprising:
- a body having an axially extending threaded portion adapted for threadingly engaging the threads of the pipe;
- said body having a shoulder adapted for abutting the terminal end of the pipe upon threading the threaded portion onto the pipe;
- an elongated annular projection extending axially from said shoulder to form an annular end, said annular projection being made of a substantially non-metallic material;
- said annular projection being capable of absorbing an impact of 1200 ft/lbs of energy on said annular end at ambient temperature and at 150° F.;
- and
- said annular projection including a base and a protruding end, said protruding end having a cross-section which is less than 80% of a maximum length times a maximum width of said protruding end.
3 more elements
A protector for protecting the end of a pipe, comprising:
- a body;
- said body having a connector to connect with the pipe;
- said body having a bumper;
- said bumper having a solid annular configuration;
- and
- said configuration and material being capable of dissipating 1200 ft/lbs of energy at ambient temperature and at 150° F.
3 more elements
Dependencies are inferred from the claim text.