US2878905A - Molded cap for sheet metal screws and the like - Google Patents
Molded cap for sheet metal screws and the like Download PDFInfo
- Publication number
- US2878905A US2878905A US569608A US56960856A US2878905A US 2878905 A US2878905 A US 2878905A US 569608 A US569608 A US 569608A US 56960856 A US56960856 A US 56960856A US 2878905 A US2878905 A US 2878905A
- Authority
- US
- United States
- Prior art keywords
- sheet metal
- cap
- screw
- molded
- metal screws
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title description 34
- 239000002184 metal Substances 0.000 title description 34
- 239000000463 material Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 229920000114 Corrugated plastic Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/904—Fastener or fastener element composed of nonmetallic material
- Y10S411/908—Resinous material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
Definitions
- the present invention relates generally as indicated to
- the sheet metal screw 3 herein shown is of conventional form including a flange 5 which provides a rela tively wide bearing surface for the sheet metal part 1 and which has thereadjacent a polygonal head 6'such as, for example, a hex, and also a screw driver slot 7.
- the upper sheet metal part 2 may a molded cap, as of flexible organic plastic material, for 6 covering the pointed sharp threads and end of a sheet metal or like screw.
- acorn nuts which are made of sheet metal, but these are relatively expensive, not only in initial cost, but also in assembly cost because the same are designed to be screwed on.
- a molded plastic cap which is inexpensive to make; which is capable of being installed very quickly, that is, simply by axially pushing the same over the end of a screw; which is securely locked in assembled position so as not to be inadvertently dislodged; which, by reason of its form and the slippery nature of the preferred plastic material, is difiicult to axially remove from the screw except by prying as with a knife blade between the end of the cap and the sheet metal engaged thereby; and which effectively covers the pointed end of the screw and also the burrs around the hole of the sheet metal.
- Fig. 1 is a cross-section view, on much enlarged scale, showing the present molded cap in its assembled position on a sheet metal screw;
- Fig. 2 is a side elevation view of the molded cap herein;
- Fig. 3 is a central cross-section view of the cap showing the annular ribs therein in undeformed condition.
- sheet metal parts 1 and 2 which are held together by the sheet metal screw 3, and as is well known in the art, the sheet metal parts 1 and 2 will have registering holes punched or drilled therethrough which are of diameter less than the major diameter of the thread 4 of the sheet metal screw 3, whereby, as the screw 3 is turned, the metal around said holes will be deformed to form a thread which engaged with the thread 4 of the sheet metal screw 3.
- the pointed, threaded end of the sheet metal screw 3 will protrude a substantial distance beyond the plane of the sheet metal part 2 whereby, as in the case of aluminum awnings, for example, persons handling the awning may cut or scratch their hands.
- it becomes rather a nuisance to clean awnings put together with sheet metal screws since the sharp threads and pointed end,and also the aforesaid burr 8, usually catch or snag the wash cloth, thus necessitating the bother of pulling off the snagged threads or pieces of cloth after the cleaning operation has been completed.
- protruding ends of the sheet metal screws where visible, are unsightly and often corrode by exposure to the elements. i
- the molded cap 9 herein is preferably made of an organic thermoplastic material, and it has been found that polyethylene and related materials are admirably suited for this purpose because of their slippery nature which, in combination with the smooth exterior surface of the cap without laterally projecting flanges, makes dislodgment of the cap 9 from the sheet metal screw 3 virtually impossible except by prying as with a knife blad'e between the end of the cap 9 and the surface of the sheet metal part 2 engaged thereby.
- the cap 9 itself is of generally cylindrical form with a rounded, generally hemispherical closed end, the exterior surface thereof preferably being slightly tapered, as shown, to facilitate the molding operation and also to contribute to the difficult axial removal of the cap 9 once it has been installed on a sheet metal screw 3.
- Said cap 9 is formed with a recess 10 therein which includes a plurality of inturned annular ribs 11 which are of inside diameter corresponding to, or preferably slightly less than, the minor diameter of the thread 4 of the sheet metal screw 3.
- the recess 10 terminates in a flare mouth 12 which, as best shown in Fig. 1, clears any burrs 8 or protrusions of the sheet metal part 2, and thus the cap 9 may be firmly seated against said sheet metal part 2.
- the diameter of the recess 10 corresponds generally with the major diameter of the threads 4 of the sheet metal screw 3, but, if desired, such recess diameter may be slightly less so that the threads 4 also slightly embed in the wall of the recess between and adjacent said ribs 11.
- a No. 6 sheet metal screw has threads 4 of .140 major diameter and .110" minor diameter, the threads being quite sharp as shown in Fig.
- a cap 9 formed with a recess 10 of Ma" diameter and a plurality of annular ribs 11 spaced apart a distance of .080 and having radiused roots and crests and a maximum minor diameter of about .110 operates well insofar as ease of assembly and difiiculty of removal are concerned.
- the flare mouth 12 may be at an angle of 45 and of diameter so as to provide a sizeable clearance space to clear any burrs 8 around the hole through which the sheet metal screw 3 passes.
- the present molded caps have utility also in protecting the sheet metal screws which are being used for joining corrugated plastic, glass fiber reinforced sheets, the ends of the molded caps 9 conforming both to the convex and concave curvatures of the corrugations of said sheets when pushed onto the screws which extend through the overlying crests and valleys of the corrugations.
- a sheet metal screw extending through axially alined holes in said sheets, said screw having a head bearing on one sheet and a pointed, threaded end projecting beyond the other sheet, and a push-on cap for covering the pointed, threaded end of said screw
- said cap comprising a generally cylindrical body of flexible plastic material which has a closed, rounded end, an axial recess in said body terminating in a flaring opening in the other end of said body, said recess having inwardly extending, axially spaced apart, annular ribs which have the threads of said metal screw embedded therein when said cap is pushed on the screw, said flaring opening forming an enlarged mouth for said recess which is adapted to laterally clear, and thus conceal burrs and displaced material around the hole of said other sheet, said cap having a smooth outer surface which tapers slightly from a maximum diameter at said other end toward the rounded end and which, in conjunction with the rounded end, renders manual axial removal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Building Awnings And Sunshades (AREA)
Description
March 24,1959 GGGGGGGGGGGGG ER 2,878,905
INVENTOR. GEL-'66 c. LANGEKNf/[R I United States Patent F MOLDED CAP FOR SHEET METAL SCREWS AND THE LIKE Gregg C. Langermeier, Cleveland, Ohio Application March 5, 1956, Serial No. 569,608 2 Claims. (Cl. 189-36) The present invention relates generally as indicated to The sheet metal screw 3 herein shown is of conventional form including a flange 5 which provides a rela tively wide bearing surface for the sheet metal part 1 and which has thereadjacent a polygonal head 6'such as, for example, a hex, and also a screw driver slot 7. As a result of the assembly of the parts 1 and 2 or of the hole-forming operation, the upper sheet metal part 2 may a molded cap, as of flexible organic plastic material, for 6 covering the pointed sharp threads and end of a sheet metal or like screw. I
In the case of aluminum awnings, for example, the protruding ends of sheet metal screws, aside from their unsightly appearance, are apt to cut or scratch the hands during handling of the awning and to snag or catch on cleaning implements during cleaning of the awning. 'In addition, there often are burrs on the sheet metal surrounding the punched or drilled hole through which the screw passes, which burrs likewise may inflict injury or snag on cleaning cloths.
There are available so-called acorn nuts which are made of sheet metal, but these are relatively expensive, not only in initial cost, but also in assembly cost because the same are designed to be screwed on.
Accordingly, it is an object of this invention to provide a molded plastic cap which is inexpensive to make; which is capable of being installed very quickly, that is, simply by axially pushing the same over the end of a screw; which is securely locked in assembled position so as not to be inadvertently dislodged; which, by reason of its form and the slippery nature of the preferred plastic material, is difiicult to axially remove from the screw except by prying as with a knife blade between the end of the cap and the sheet metal engaged thereby; and which effectively covers the pointed end of the screw and also the burrs around the hole of the sheet metal.
Other objects and advantages of the present invention will become apparent as the following description proceeds.
To the accomplishment of the foregoing and related ends, the invention, then, comprises the features hereinafter fully described and particularly pointed out in the claims, the following description and the annexed drawings setting forth in detail a certain illustrative embodiment of the invention, this being indicative, however, of but one of a few of the various ways in which the principle of the invention may be employed.
In said annexed drawing:
Fig. 1 is a cross-section view, on much enlarged scale, showing the present molded cap in its assembled position on a sheet metal screw;
Fig. 2 is a side elevation view of the molded cap herein; and
Fig. 3 is a central cross-section view of the cap showing the annular ribs therein in undeformed condition.
Referring now more particularly to the drawing and first to Fig. 1, there are shown sheet metal parts 1 and 2 which are held together by the sheet metal screw 3, and as is well known in the art, the sheet metal parts 1 and 2 will have registering holes punched or drilled therethrough which are of diameter less than the major diameter of the thread 4 of the sheet metal screw 3, whereby, as the screw 3 is turned, the metal around said holes will be deformed to form a thread which engaged with the thread 4 of the sheet metal screw 3.
have a projecting burr 8 as shown.
In most instances, the pointed, threaded end of the sheet metal screw 3 will protrude a substantial distance beyond the plane of the sheet metal part 2 whereby, as in the case of aluminum awnings, for example, persons handling the awning may cut or scratch their hands. In addition, it becomes rather a nuisance to clean awnings put together with sheet metal screws, since the sharp threads and pointed end,and also the aforesaid burr 8, usually catch or snag the wash cloth, thus necessitating the bother of pulling off the snagged threads or pieces of cloth after the cleaning operation has been completed. Furthermore, such protruding ends of the sheet metal screws, where visible, are unsightly and often corrode by exposure to the elements. i
The molded cap 9 herein is preferably made of an organic thermoplastic material, and it has been found that polyethylene and related materials are admirably suited for this purpose because of their slippery nature which, in combination with the smooth exterior surface of the cap without laterally projecting flanges, makes dislodgment of the cap 9 from the sheet metal screw 3 virtually impossible except by prying as with a knife blad'e between the end of the cap 9 and the surface of the sheet metal part 2 engaged thereby.
The cap 9 itself is of generally cylindrical form with a rounded, generally hemispherical closed end, the exterior surface thereof preferably being slightly tapered, as shown, to facilitate the molding operation and also to contribute to the difficult axial removal of the cap 9 once it has been installed on a sheet metal screw 3.
Said cap 9 is formed with a recess 10 therein which includes a plurality of inturned annular ribs 11 which are of inside diameter corresponding to, or preferably slightly less than, the minor diameter of the thread 4 of the sheet metal screw 3. The recess 10 terminates in a flare mouth 12 which, as best shown in Fig. 1, clears any burrs 8 or protrusions of the sheet metal part 2, and thus the cap 9 may be firmly seated against said sheet metal part 2.
In installing the molded cap 9 herein, all that it is necessary to do is to apply axial pressure thereon at the closed rounded end, whereupon the same is resiliently deformed andis firmly gripped by the sharp threads 4 of the screw 3 which cross over and embed in the annular ribs 11.
The diameter of the recess 10 corresponds generally with the major diameter of the threads 4 of the sheet metal screw 3, but, if desired, such recess diameter may be slightly less so that the threads 4 also slightly embed in the wall of the recess between and adjacent said ribs 11.
By reason of the smooth exterior surface of the molded cap 9 and the rounded end, and also by reason of the slippery nature of the preferred thermoplastic material aforesaid from which the cap is made, it is very difiicult to axially remove the cap 9 from the screw 3, and thus said cap 9 will not become accidentally dislodged during the handling of the awning or cleaning thereof. Moreover, tampering with the caps 9 is discouraged. The caps 9, of course, may be readily removed by prying as aforesaid.
By way of specific example, a No. 6 sheet metal screw has threads 4 of .140 major diameter and .110" minor diameter, the threads being quite sharp as shown in Fig.
3 1 and having a pitch of say fourteen threads per inch. It has been found that a cap 9 formed with a recess 10 of Ma" diameter and a plurality of annular ribs 11 spaced apart a distance of .080 and having radiused roots and crests and a maximum minor diameter of about .110 operates well insofar as ease of assembly and difiiculty of removal are concerned. The flare mouth 12 may be at an angle of 45 and of diameter so as to provide a sizeable clearance space to clear any burrs 8 around the hole through which the sheet metal screw 3 passes.
It has been found that the present molded caps have utility also in protecting the sheet metal screws which are being used for joining corrugated plastic, glass fiber reinforced sheets, the ends of the molded caps 9 conforming both to the convex and concave curvatures of the corrugations of said sheets when pushed onto the screws which extend through the overlying crests and valleys of the corrugations.
Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent of such, be employed.
1 therefore particularly point out and distinctly claim as my invention:
1. In combination, at least two sheets held together by a sheet metal screw extending through axially alined holes in said sheets, said screw having a head bearing on one sheet and a pointed, threaded end projecting beyond the other sheet, and a push-on cap for covering the pointed, threaded end of said screw, said cap comprising a generally cylindrical body of flexible plastic material which has a closed, rounded end, an axial recess in said body terminating in a flaring opening in the other end of said body, said recess having inwardly extending, axially spaced apart, annular ribs which have the threads of said metal screw embedded therein when said cap is pushed on the screw, said flaring opening forming an enlarged mouth for said recess which is adapted to laterally clear, and thus conceal burrs and displaced material around the hole of said other sheet, said cap having a smooth outer surface which tapers slightly from a maximum diameter at said other end toward the rounded end and which, in conjunction with the rounded end, renders manual axial removal of said cap from said screw extremely difiicult except by prying between the abutting surfaces of said cap and said other sheet.
2. The combination of claim 1 characterized further in that said cap is made of a material that has the slipperiness of polyethylene whereby axial manual removal of the cap is rendered yet more diflicult.
References Cited in the file of this patent UNITED STATES PATENTS l l t l
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US569608A US2878905A (en) | 1956-03-05 | 1956-03-05 | Molded cap for sheet metal screws and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US569608A US2878905A (en) | 1956-03-05 | 1956-03-05 | Molded cap for sheet metal screws and the like |
Publications (1)
Publication Number | Publication Date |
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US2878905A true US2878905A (en) | 1959-03-24 |
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ID=24276104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US569608A Expired - Lifetime US2878905A (en) | 1956-03-05 | 1956-03-05 | Molded cap for sheet metal screws and the like |
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Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126243A (en) * | 1964-03-24 | Socket cup and closure therefor | ||
US3807105A (en) * | 1971-05-10 | 1974-04-30 | Rudkin Wiley Corp | Modular building units |
US3942273A (en) * | 1973-05-23 | 1976-03-09 | Adams Thomas D | Military ribbon holder |
US4114506A (en) * | 1975-01-14 | 1978-09-19 | Itw Fastex Italia, S.P.A. | Self-tapping wing nut |
US4223051A (en) * | 1978-01-20 | 1980-09-16 | I. W. Industries, Inc. | Detachable finial lamp part |
US4358098A (en) * | 1980-11-17 | 1982-11-09 | National Union Electric Corporation | Mounting nut |
US4600344A (en) * | 1983-12-05 | 1986-07-15 | Illinois Tool Works Inc. | Push-on plastic wing-nut fastener |
US4809752A (en) * | 1986-05-02 | 1989-03-07 | Wilhelm Strodter Maschinen- Und Apparatebau | Thread protector for screw threads, made of a deformable material with a complementary thread |
US5038829A (en) * | 1988-10-14 | 1991-08-13 | Paul Panella | Sewer line clean out units |
US5431518A (en) * | 1993-10-29 | 1995-07-11 | Young; Donald M. | Polymeric combination washer and nut |
US5680946A (en) * | 1995-08-24 | 1997-10-28 | Spatz Laboratories | Sealable container |
US5697745A (en) * | 1995-12-05 | 1997-12-16 | Shaw; Jack B. | Screw cap |
US5908048A (en) * | 1997-09-29 | 1999-06-01 | Medtronic, Inc. | Dust cap for barbed connectors |
USD420313S (en) * | 1998-05-01 | 2000-02-08 | Richard Mark Sample | Wheel safety cap |
EP1039156A2 (en) | 1999-03-24 | 2000-09-27 | Paul Müller Technische Produkte GmbH | Plastic protective cap for screw connections |
US6688827B2 (en) * | 2000-02-29 | 2004-02-10 | Ronald Gelb | Protective device for an aciculate object |
US20050095082A1 (en) * | 2003-10-30 | 2005-05-05 | Newfrey Llc | Fasteners for attaching pipes to a support |
US20060138914A1 (en) * | 2003-06-25 | 2006-06-29 | Gerard Bour | Housing, especially housing for containing a printed circuit board or the like, and method for producing the same |
US20100196118A1 (en) * | 2007-11-15 | 2010-08-05 | Chiang Heng Wong | Nut for self-tapping sheet metal screws |
US20120036808A1 (en) * | 2010-08-10 | 2012-02-16 | High-R, Inc. | Purlin clip for blown-in insulated ceilings |
US20150104269A1 (en) * | 2009-10-27 | 2015-04-16 | Timothy F. Gillis | Self-Drilling Bolt and Nut Assembly |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1411184A (en) * | 1917-04-16 | 1922-03-28 | Rosenberg Heyman | Sheet-metal structure and fastener therefor |
US1556966A (en) * | 1925-01-19 | 1925-10-13 | Selig Frank | Protective tip |
US2417262A (en) * | 1945-06-25 | 1947-03-11 | Adel Prec Products Corp | Sealing nut |
US2551834A (en) * | 1947-06-09 | 1951-05-08 | Presstite Engineering Company | Protective plastic cap |
US2726009A (en) * | 1952-09-12 | 1955-12-06 | Plastic Products Corp | Non-corrosive tank for petroleum products |
US2727651A (en) * | 1953-04-28 | 1955-12-20 | Elmer J Mickelson | Resilient pipe cap |
-
1956
- 1956-03-05 US US569608A patent/US2878905A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1411184A (en) * | 1917-04-16 | 1922-03-28 | Rosenberg Heyman | Sheet-metal structure and fastener therefor |
US1556966A (en) * | 1925-01-19 | 1925-10-13 | Selig Frank | Protective tip |
US2417262A (en) * | 1945-06-25 | 1947-03-11 | Adel Prec Products Corp | Sealing nut |
US2551834A (en) * | 1947-06-09 | 1951-05-08 | Presstite Engineering Company | Protective plastic cap |
US2726009A (en) * | 1952-09-12 | 1955-12-06 | Plastic Products Corp | Non-corrosive tank for petroleum products |
US2727651A (en) * | 1953-04-28 | 1955-12-20 | Elmer J Mickelson | Resilient pipe cap |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126243A (en) * | 1964-03-24 | Socket cup and closure therefor | ||
US3807105A (en) * | 1971-05-10 | 1974-04-30 | Rudkin Wiley Corp | Modular building units |
US3942273A (en) * | 1973-05-23 | 1976-03-09 | Adams Thomas D | Military ribbon holder |
US4114506A (en) * | 1975-01-14 | 1978-09-19 | Itw Fastex Italia, S.P.A. | Self-tapping wing nut |
US4223051A (en) * | 1978-01-20 | 1980-09-16 | I. W. Industries, Inc. | Detachable finial lamp part |
US4358098A (en) * | 1980-11-17 | 1982-11-09 | National Union Electric Corporation | Mounting nut |
US4600344A (en) * | 1983-12-05 | 1986-07-15 | Illinois Tool Works Inc. | Push-on plastic wing-nut fastener |
US4809752A (en) * | 1986-05-02 | 1989-03-07 | Wilhelm Strodter Maschinen- Und Apparatebau | Thread protector for screw threads, made of a deformable material with a complementary thread |
US5038829A (en) * | 1988-10-14 | 1991-08-13 | Paul Panella | Sewer line clean out units |
US5431518A (en) * | 1993-10-29 | 1995-07-11 | Young; Donald M. | Polymeric combination washer and nut |
US5680946A (en) * | 1995-08-24 | 1997-10-28 | Spatz Laboratories | Sealable container |
US5697745A (en) * | 1995-12-05 | 1997-12-16 | Shaw; Jack B. | Screw cap |
US5908048A (en) * | 1997-09-29 | 1999-06-01 | Medtronic, Inc. | Dust cap for barbed connectors |
USD420313S (en) * | 1998-05-01 | 2000-02-08 | Richard Mark Sample | Wheel safety cap |
EP1039156A2 (en) | 1999-03-24 | 2000-09-27 | Paul Müller Technische Produkte GmbH | Plastic protective cap for screw connections |
DE19913164C1 (en) * | 1999-03-24 | 2001-02-01 | Paul Mueller Tech Produkte Gmb | Plastic protective cap for screw connections |
US6688827B2 (en) * | 2000-02-29 | 2004-02-10 | Ronald Gelb | Protective device for an aciculate object |
US20060138914A1 (en) * | 2003-06-25 | 2006-06-29 | Gerard Bour | Housing, especially housing for containing a printed circuit board or the like, and method for producing the same |
US20050095082A1 (en) * | 2003-10-30 | 2005-05-05 | Newfrey Llc | Fasteners for attaching pipes to a support |
US7316374B2 (en) * | 2003-10-30 | 2008-01-08 | Newfrey Llc | Fasteners for attaching pipes to a support |
US20100196118A1 (en) * | 2007-11-15 | 2010-08-05 | Chiang Heng Wong | Nut for self-tapping sheet metal screws |
US20150104269A1 (en) * | 2009-10-27 | 2015-04-16 | Timothy F. Gillis | Self-Drilling Bolt and Nut Assembly |
US9631660B2 (en) * | 2009-10-27 | 2017-04-25 | Handy & Harman | Self-drilling bolt and nut assembly |
US20120036808A1 (en) * | 2010-08-10 | 2012-02-16 | High-R, Inc. | Purlin clip for blown-in insulated ceilings |
US8365490B2 (en) * | 2010-08-10 | 2013-02-05 | HIDH-R, Inc. | Purlin clip for blown-in insulated ceilings |
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