US1584313A - Thread protector - Google Patents

Thread protector Download PDF

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Publication number
US1584313A
US1584313A US370403A US37040320A US1584313A US 1584313 A US1584313 A US 1584313A US 370403 A US370403 A US 370403A US 37040320 A US37040320 A US 37040320A US 1584313 A US1584313 A US 1584313A
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Prior art keywords
shell
thread
protector
segment
flange
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Expired - Lifetime
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US370403A
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Bonnie L Mallory
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Individual
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Individual
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Priority to US370403A priority Critical patent/US1584313A/en
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Publication of US1584313A publication Critical patent/US1584313A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
    • B65D59/06—Caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/005—Protection of pipes or objects of similar shape against external or internal damage or wear specially adapted for the ends of pipes

Definitions

  • This invention relates to improvements in that class of devices known as thread protectors that are used for guarding the threaded ends of pipes, tubes, rods, etc.,
  • the Objects of my invention are the economical production of a very etiicient device of the aforesaid character that is simple and substantial of construction; is comprised of a minimum number of parts; is convenient of attachment and removal; adjusts itself to slight irregularities of thread, or to socalled straight or tapered threads; that holds securely against dislodgment except in response to the unscrewing operation; and that fully protects the object to which it is applied, having as it does a heavy terminal flange that extends inwardly over the end of the object.
  • Fig. 1 IS a perspective view of a thread protector constructed in accordance with my invention
  • Fig. 2 is a sectional side elevation of a protector applied thereto
  • Fig. 3 is a section on the line 3 3 of Fig. 2
  • Fig. 4 is a perspective view of the parts of the protector in separated condition, as before the thread engaging ele- 3 ment is inserted and the flange of the shell turned over to hold it in'place, a part of the shell being broken away to more clearly reveal its construction.
  • My protector is preferably entirely made of sheet metal and comprises a cylindrical shell 1 having an end flange 2 that is formed by an inwardly directed end of the shell, turned over upon itself, as clearly shown in Fig. 2.
  • a thread engaging element 4 is preferably entirely made of sheet metal and comprises a cylindrical shell 1 having an end flange 2 that is formed by an inwardly directed end of the shell, turned over upon itself, as clearly shown in Fig. 2.
  • the thread engaging element may be very slightl v spaced from the wall of the shell 1 so as to yield to any slight irregularities in the thread,
  • the end flange 2 being of double thickness, and the shell 1 being spaced slightly from the threads of the pipe for practically their entire circumference, make the device an exceedingly effective protector.
  • a thread protector comprising a cylindrical shell having one of its ends turned inwardly upon itself to provide a double wall flange, and a threaded segment inside the shell and having an inwardly directed end flange embraced between the walls of the former flange while the body portion of the segment bears at its endadjacent the flange on the cylindrical wall of the shell thereby to be held securely in place.
  • a thread protector comprising a sheet metal cylindrical shell, and a sheet metal threaded segment inside the shell, the segment having an end flange, and the shell having its end turned inwardly and over about the end flange of the segment to hold the segment in place.
  • a thread protector comprising a cylindrical shell, and a resilient threaded sheet metal segment secured inside the shell and spaced from the wallthereof a distance less than the 'de th of the threads of said segment wherelgy when the protector is placed upon a threaded element, said wall serves as a stop to prevent withdrawal of the threads of the segment from e threads of the element.
  • a thread protector comprising a sheet metal cylindrical shell, and a sheet metal threaded segment inside the shell, the segment having an end flange, and the shell having its end turned inwardly and over about the end flange of the segment. said end flange being retained in said shell end.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)

Description

May 11 1926.
B. L. MALLORY THREAD PROTECTOR Filed April 1, 1920 25 pipe having my thread Patented May 11,1926.
J UNITED STATES PATENT OFFICE.
THREAD PROTECTOR.
Application filed April 1, 1920. Serial No. 370,403.
This invention relates to improvements in that class of devices known as thread protectors that are used for guarding the threaded ends of pipes, tubes, rods, etc.,
against injury during shipment, storage, and
handling.
The Objects of my invention are the economical production of a very etiicient device of the aforesaid character that is simple and substantial of construction; is comprised of a minimum number of parts; is convenient of attachment and removal; adjusts itself to slight irregularities of thread, or to socalled straight or tapered threads; that holds securely against dislodgment except in response to the unscrewing operation; and that fully protects the object to which it is applied, having as it does a heavy terminal flange that extends inwardly over the end of the object.
In the accompanying drawing, Fig. 1 IS a perspective view of a thread protector constructed in accordance with my invention; Fig. 2 is a sectional side elevation of a protector applied thereto; Fig. 3 is a section on the line 3 3 of Fig. 2; and Fig. 4 is a perspective view of the parts of the protector in separated condition, as before the thread engaging ele- 3 ment is inserted and the flange of the shell turned over to hold it in'place, a part of the shell being broken away to more clearly reveal its construction.
My protector is preferably entirely made of sheet metal and comprises a cylindrical shell 1 having an end flange 2 that is formed by an inwardly directed end of the shell, turned over upon itself, as clearly shown in Fig. 2. A thread engaging element 4,
40 that is provided for a part of its length with threads of a standard pitch and character, has a flange 5 confined within the. former flange 2, when the parts are assembled. The thread engaging element may be very slightl v spaced from the wall of the shell 1 so as to yield to any slight irregularities in the thread,
or to adjust itself to either a straight or tapered thread, the space between the element and wall of the shell being insufiicient,-however, to allow the element to withdraw laterally from the threads of the pipe, for the deject, or if its inner vice must cling to the pipe securely enough to prevent its accidental dislodgment therefrom if struck a hard blow against an obend should catch on an object in such. manner as to exert a longi tudinal pull on the device.
The end flange 2, being of double thickness, and the shell 1 being spaced slightly from the threads of the pipe for practically their entire circumference, make the device an exceedingly effective protector.
Having thus described my invention, what I claim is:
1. A thread protector comprising a cylindrical shell having one of its ends turned inwardly upon itself to provide a double wall flange, and a threaded segment inside the shell and having an inwardly directed end flange embraced between the walls of the former flange while the body portion of the segment bears at its endadjacent the flange on the cylindrical wall of the shell thereby to be held securely in place.
2. A thread protector comprising a sheet metal cylindrical shell, and a sheet metal threaded segment inside the shell, the segment having an end flange, and the shell having its end turned inwardly and over about the end flange of the segment to hold the segment in place.
3. A thread protector comprising a cylindrical shell, and a resilient threaded sheet metal segment secured inside the shell and spaced from the wallthereof a distance less than the 'de th of the threads of said segment wherelgy when the protector is placed upon a threaded element, said wall serves as a stop to prevent withdrawal of the threads of the segment from e threads of the element.
4. A thread protector comprising a sheet metal cylindrical shell, and a sheet metal threaded segment inside the shell, the segment having an end flange, and the shell having its end turned inwardly and over about the end flange of the segment. said end flange being retained in said shell end.
In testimony whereof, I hereunto aflix my signature.
BONNIE L. MALLORY.
US370403A 1920-04-01 1920-04-01 Thread protector Expired - Lifetime US1584313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US370403A US1584313A (en) 1920-04-01 1920-04-01 Thread protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US370403A US1584313A (en) 1920-04-01 1920-04-01 Thread protector

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632478A (en) * 1948-07-01 1953-03-24 Howard W Ronfeldt Thread protector
US2691992A (en) * 1950-05-06 1954-10-19 Wedge Protectors Inc Thread protector
US4298470A (en) * 1980-05-22 1981-11-03 Stallings Billy G Sewage septic system with liquid flow drainage control
US20100326560A1 (en) * 2009-06-29 2010-12-30 Zeyfang Frederick W Open ended industrial pipe cap
US9027603B2 (en) 2011-03-07 2015-05-12 Protective Industries, Inc. Open ended industrial pipe cap with recessed finger grip
US9068682B2 (en) 2012-12-20 2015-06-30 Protective Industries, Inc. Open ended industrial pipe cap for smaller diameter pipes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632478A (en) * 1948-07-01 1953-03-24 Howard W Ronfeldt Thread protector
US2691992A (en) * 1950-05-06 1954-10-19 Wedge Protectors Inc Thread protector
US4298470A (en) * 1980-05-22 1981-11-03 Stallings Billy G Sewage septic system with liquid flow drainage control
US20100326560A1 (en) * 2009-06-29 2010-12-30 Zeyfang Frederick W Open ended industrial pipe cap
US8051879B2 (en) 2009-06-29 2011-11-08 Protective Industries, Inc. Open ended industrial pipe cap
US9027603B2 (en) 2011-03-07 2015-05-12 Protective Industries, Inc. Open ended industrial pipe cap with recessed finger grip
US9068682B2 (en) 2012-12-20 2015-06-30 Protective Industries, Inc. Open ended industrial pipe cap for smaller diameter pipes

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