US34272A - Improvement in knapsacks - Google Patents
Improvement in knapsacks Download PDFInfo
- Publication number
- US34272A US34272A US34272DA US34272A US 34272 A US34272 A US 34272A US 34272D A US34272D A US 34272DA US 34272 A US34272 A US 34272A
- Authority
- US
- United States
- Prior art keywords
- knapsack
- straps
- shoulders
- wearer
- inches
- 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
- 210000002832 Shoulder Anatomy 0.000 description 46
- 239000010985 leather Substances 0.000 description 20
- 230000005484 gravity Effects 0.000 description 10
- 210000003205 Muscles Anatomy 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 240000001973 Ficus microcarpa Species 0.000 description 4
- 241000507564 Aplanes Species 0.000 description 2
- 240000002791 Brassica napus Species 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 206010016256 Fatigue Diseases 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 2
- 208000007180 Sunstroke Diseases 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
- A45F3/02—Sacks or packs carried on the body by means of one strap passing over the shoulder
Definitions
- my invention consists, first, in so arranging straps upon and attaching them to a knapsack that its top may be allowed to fall away from contact with the shoulders and spine ot thewearer iu order to prevent the overheating of the spine of the wearer, substantially as described; second,in an improved mode of arranging and adapting straps to support and confine a knapsack to the shoulders and back of the wearer, so that it can be raised and lowered in avertical line, or nearly in a vertical line, upon the back and shoulders of the wearer, and be held at vai-yin g heights on such vertical line, as herein t'ully described; third, in the use of a single strap, which acts as a neck and shoulder strap, so that it shall have eective action to sustain a knapsack by means simply of connections formed with the top and base of a knapsack or with points near the top and base of a knapsack; fourth,in so forming the side walls of a k
- FIG. 1 is a plan view of a piece of canvas, of which a knapsack is composed, and showing certain portions thereof cut away in its sides, together with a portion cutout near the center of one of the main divisions of the canvas to form the clothes-hole.
- Fig. 2 is a longitudinal vertical central section of Figs. l, 4, and 6.
- Fig. 3' is an inverted plan of Fig.
- FIG. 4 is a perspective view, with the neck and shoulder strap attached, as shown in sect-ion in Fig. 2, and with the crossed back-straps dispensed with, as shown in Fig. l.
- Fig. 5 is a perspective withthe neck and shoulderstraps attached attached to back-straps running lengthwise of a knapsack and not crossed, as seen in Fig. l.
- Fig. 6 is aplan of a knapsack shown in section in Fig. 2 with the flap thrown back and showing the iiap-st'raps crossed over the clothes-hole.
- Fig. 4 is a perspective view, with the neck and shoulder strap attached, as shown in sect-ion in Fig. 2, and with the crossed back-straps dispensed with, as shown in Fig. l.
- Fig. 5 is a perspective withthe neck and shoulderstraps attached attached to back-straps running lengthwise of a knapsack and not crossed, as seen in
- FIG. 7 is a view of a knapsack in ordinary position, as shown in black ink, upon the back and shoulders of a soldier, the line ot its gravity, as shown in red ink, varying from the line of its gravity, as shown in black.
- Fig. S is a view in black ink ot' a knapsack shown in black ink in Fig. 7 and elevated on a vertical line upon the back and ,Y shoulders of the soldier when in use.
- Y ion C within the dotted lines is twenty inches shoulders of the wearer, the red lines showing a variation from the line of gravity of the knapsack shown in black in Fig. S while the knapsack is in an elevated position.
- Fig. 1 is designed to represent a piece of canvas of the proper dimensions for making a medium-sized knapsack, and is twenty-two inches wide by sixty-three inches in length, certain parts thereof being cut away, as shown at a2 and q.
- the portions a2, cut away from the sides of the canvas are in dimensions three and one-half inches in width by four inches in length, and the dimensions of the opening q, by reason of the part cut away, are four inches in width ⁇ by eight inches in length.
- This gure then represents the canvas properly cut into an outline or form ready to be manipulated and sewed into the permanent condition to constitute the body of a knapsack.
- the canvas so cut forms three major divisions A, B, and C, and two minor division A and B.
- i connection ⁇ with its edges e and g' forms a piece of canvas twenty inches in length by twenty-two in width to constitute the flap, whichoverlaps the back and sides of the knapsack and extends down to and slightly below the bottom of the knapsack when complete.
- the minor divisions A and B are situate intermediate between divisions A and B and B and C, and are four inches in Width by fifteen inches in length and constitute in part the top and bottom foundations of the knapsack. These foundations are rendered of the proper stiffnessfor maintaining the form of the knapsack by securing to their under surfaces strips of sole-leather of the same dimensions. These strips are clearly shown in section at w in Fig. 2.
- the said sewing may pass through and confine the upper ends of t-he projecting edges e and g to the upper foundation or minor division B', as shown in Fig. 4, thus leaving said edges e and g below their upper ends to loosely overlap and Aprotect the sides of the knapsack,
- I yusca main leather strap a which from end to end is two feet eightinches in length by an inch and a quarter in width, perforated with a series of buckle-holes, commencing at the ends and running lengthwise ot' the strap to the extent of seven inches from each end, the buckle-holes being one and a half inch apart.
- This strap in use when connected with a knapsack, constitutes a neck-and-shoulder strap, its ends being passed through buckles a3 and a4, attached to straps d, eight inches in length and of the same width as the neck-and-shoulder strap, and which straps d are secured by rivets to the sole-leather of the foundation A in theV same manner as straps b are attached by rivets t and t to the top foundation B through sole-leather w, as seen in section Fig. 2.
- the straps b, Figs. 2 and 4 may be six or eight inches in length and perforated, commencing from their outer ends, with buckleholes an inch and a half apart, a distance equal to the extreme extent it is desirable to have the knapsack fall away from the back and shoulders of the wearer when in use, as will be hereinafter described.
- the neck-and-shoulderstrap when in use as designed embraces the nape of the neck, passes over and in front of the right and left shoulders, and down beneath each arm of the wearer, as indicated in Figs. 7 and 8 of the deawings.
- Blanket-straps e are likewise attached to the top foundation B by rivets passed through the sole-leather w of said'foundation, as shown in Figs. 2 and 4.
- Fig. l of the drawings shows the same principle of clothing or slinging knapsacks, with the addition of back-straps f, crossed midway of division B,their lower ends being secured by rivets to the sole-leather w of the bottom foundation A, and between the buckle-straps d and the outer surface of said foundation.
- the outer ends of said back-straps f as shown in Fig. l, pass through loops n, attached to the canvas of division B, and thence through loops i', attached by rivets to the sole-leather w of the upper foundation B, and thence are intended to pass into and be secured in buckles c, Fig.
- Fig. 8 shows still another variation in the position of the knapsack Aof Fig. 7, effected by buckling up the ends of neck-and-shoulder strap ci and letting out or lengthening the straps Z9 between their points of attachment to the neck-andshoulder strap and the knapsack, the ends of a being buckled up the saine length that the straps b are let out, thus causing the knapsack to rise in a vertical line,
- the knapsack may still be made to vary its position, as illustrated in red, by simply still further letting out the straps b, the bottom of the knapsack retaining ⁇ the Same point of elevation previously given it.
- Fig. 5 shows the application of my neck-andshoulder strap to the top and bottom vof a knapsack, which has back-straps f running lengthwise instead of being crossed upon division B, said straps at their bottom and top ends passing loosely through loops attached to the top and bottom foundations of the knapsack, and thereafter being connected to the neck-and-shoulder strap a, as shown in said figure.
- Fig. 9 represents the form of wooden side walls which are to be adj usted inside the knapsack, their ends abutting against thev ends of the upper and 'lower foundations B and A their length being the same as the length of the knapsack inside and their width at their extremities the saine as the inside width of the knapsack to which they are intended to be applied. They maybe three-eighths of an inch in thickness and hollowed out on their inner face edge, as at tts, thus measurably conforming that part of the knapsack which adjoins the back and shoulders to the outline of those parts of the body of the wearer.
Landscapes
- Portable Outdoor Equipment (AREA)
Description
vN., PETERS, PHOYOMTHOGRAPHER, wASmNGTON. D C.
Wa Fa/@MM5 /f NAPETERS, PHGTO-LIYHOGRAPHER. WASHINGTON. D CA UNITED STATES PATENT y OEEICE.
JOSEPH SHORT, OF BOSTON, ASSIGNOR TO CHARLES SHORT, OF SALEM, MASSACHUSETTS.
IMPROVEMENT IN KNAPSACKS.
Specification forming part of Letters Patent No. 34,272, dated January 28, 1862.
To all whom t may concern:
Be it known that I, JOSEPH SHORT, of the city of Boston, in the State of Massachusetts, have invented a new and Improved Mode of Slinging Knapsacks; and I do hereby declare that the followingA is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and the letters of reference marked thereon.
The nature of my invention consists, first, in so arranging straps upon and attaching them to a knapsack that its top may be allowed to fall away from contact with the shoulders and spine ot thewearer iu order to prevent the overheating of the spine of the wearer, substantially as described; second,in an improved mode of arranging and adapting straps to support and confine a knapsack to the shoulders and back of the wearer, so that it can be raised and lowered in avertical line, or nearly in a vertical line, upon the back and shoulders of the wearer, and be held at vai-yin g heights on such vertical line, as herein t'ully described; third, in the use of a single strap, which acts as a neck and shoulder strap, so that it shall have eective action to sustain a knapsack by means simply of connections formed with the top and base of a knapsack or with points near the top and base of a knapsack; fourth,in so forming the side walls of a knapsack as to accommodate the points of contact with the back and shoulders of the wearer t-o the outline or form of those parts of the wearer, give and preserve proper form to the knapsack, and prevent it from bagging in its several adjustments.
No portion of the accouterments of an infantry soldier becomes so burdensome on a long march as the knapsack worn upon his back and shoulders, and particularly if it is heavy laden, as is usually the case. To supply the means whereby the weariness engendered by carrying such burden may be relieved while the soldier is yet upon the march is the object of my invention, at the same time overcoming the well-known objections to the use of the ordinary' knapsack. These objections, enumerated in brief, are- First. Theknapsack under one of the modes ot' ordinary construction maintains upon the back and shoulders of the wearer but one position. It therefore calls into play only a given set of muscles of the body ot' the wearer and soon tires the soldier.
Second. Under another mode of construction the knapsack slips down from the shoulders to the small of the back, thus bringing the greatest exertion to sustain its weight directly upon the weakest part ot` the body of the soldier.
Third. Those knapsacks which obviate the slipping down and yet maintain practically but one position upon the back and shoulders inevitably in veryhot weather and on a long march overheat the spine and thus induce sunstroke, the result of which, as is Well known, is almost certain death.
To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation, reference being had to the accompanying drawings, and to the letters and notes marked thereon, like letters in the several figures indicating the same oranalogo'us parts, in which drawings- Figure l is a plan view of a piece of canvas, of which a knapsack is composed, and showing certain portions thereof cut away in its sides, together with a portion cutout near the center of one of the main divisions of the canvas to form the clothes-hole. Fig. 2 is a longitudinal vertical central section of Figs. l, 4, and 6. Fig. 3' is an inverted plan of Fig. 2, showing the handle and short straps attached to the bottom of a knapsack, as seen in section in last-named figure. Fig. 4 is a perspective view, with the neck and shoulder strap attached, as shown in sect-ion in Fig. 2, and with the crossed back-straps dispensed with, as shown in Fig. l. Fig. 5 is a perspective withthe neck and shoulderstraps attached attached to back-straps running lengthwise of a knapsack and not crossed, as seen in Fig. l. Fig. 6 is aplan of a knapsack shown in section in Fig. 2 with the flap thrown back and showing the iiap-st'raps crossed over the clothes-hole. Fig. 7 is a view of a knapsack in ordinary position, as shown in black ink, upon the back and shoulders of a soldier, the line ot its gravity, as shown in red ink, varying from the line of its gravity, as shown in black. Fig. S is a view in black ink ot' a knapsack shown in black ink in Fig. 7 and elevated on a vertical line upon the back and ,Y shoulders of the soldier when in use. Y ion C within the dotted lines is twenty inches shoulders of the wearer, the red lines showing a variation from the line of gravity of the knapsack shown in black in Fig. S while the knapsack is in an elevated position.
In the drawings, Fig. 1 is designed to represent a piece of canvas of the proper dimensions for making a medium-sized knapsack, and is twenty-two inches wide by sixty-three inches in length, certain parts thereof being cut away, as shown at a2 and q. The portions a2, cut away from the sides of the canvas, are in dimensions three and one-half inches in width by four inches in length, and the dimensions of the opening q, by reason of the part cut away, are four inches in width` by eight inches in length. This gure then represents the canvas properly cut into an outline or form ready to be manipulated and sewed into the permanent condition to constitute the body of a knapsack. The canvas so cut forms three major divisions A, B, and C, and two minor division A and B. Division A within the dotted lines is seventeen and one-half inches in length by fifteen inches in width and constitutes the back of the knapsack, 'and when in permanent position is overlapped or covered by the flap Division B within the dotted lines is of the same dimensions asA and constitutes the front of the knapsack, and rests against the back and Divisin length by fifteen inches in width, and, in
i connection` with its edges e and g', forms a piece of canvas twenty inches in length by twenty-two in width to constitute the flap, whichoverlaps the back and sides of the knapsack and extends down to and slightly below the bottom of the knapsack when complete. The minor divisions A and B are situate intermediate between divisions A and B and B and C, and are four inches in Width by fifteen inches in length and constitute in part the top and bottom foundations of the knapsack. These foundations are rendered of the proper stiffnessfor maintaining the form of the knapsack by securing to their under surfaces strips of sole-leather of the same dimensions. These strips are clearly shown in section at w in Fig. 2.
Inmanipulating the several vparts of the canvas, as shown in Fig. l, into the requisite v position in which they are to be permanently jecting edges a and b inclos'e and overlap the projecting edges c and d of the rear division B of the knapsack, as shown in Fig. 5. The iiap C is then turned up over the two major divisions A and B, with the minor or foundation division B abutting against or adjoining the upper ends of the projecting edges a,b, c', and d of the knapsack,where upon the said projecting edges are sewed to each other and to the ends of the foundation A and B', as shown in Figs. 3 and 5 and in section Fig. 2, and, if desired, the said sewing may pass through and confine the upper ends of t-he projecting edges e and g to the upper foundation or minor division B', as shown in Fig. 4, thus leaving said edges e and g below their upper ends to loosely overlap and Aprotect the sides of the knapsack,
as shown in last-named figure.
For slinging a knapsack of a medium size, the body of which is constructed as above described or in any other of the well-known manners, I yusca main leather strap a, Fig. 4, which from end to end is two feet eightinches in length by an inch and a quarter in width, perforated with a series of buckle-holes, commencing at the ends and running lengthwise ot' the strap to the extent of seven inches from each end, the buckle-holes being one and a half inch apart. This strap in use, when connected with a knapsack, constitutes a neck-and-shoulder strap, its ends being passed through buckles a3 and a4, attached to straps d, eight inches in length and of the same width as the neck-and-shoulder strap, and which straps d are secured by rivets to the sole-leather of the foundation A in theV same manner as straps b are attached by rivets t and t to the top foundation B through sole-leather w, as seen in section Fig. 2.
The straps b, Figs. 2 and 4, may be six or eight inches in length and perforated, commencing from their outer ends, with buckleholes an inch and a half apart, a distance equal to the extreme extent it is desirable to have the knapsack fall away from the back and shoulders of the wearer when in use, as will be hereinafter described.
uOn each side, and four and one-half inches distant from a point midway of the lengthof the neck-and-shoulder strap a, I attach a buckle-strap c, as shown in said Fig. 4, through which the straps b are passed and secured, thus connecting by the means described said neck-and-shoulder strap to the top and bottom of the knapsack.
The neck-and-shoulderstrap when in use as designed embraces the nape of the neck, passes over and in front of the right and left shoulders, and down beneath each arm of the wearer, as indicated in Figs. 7 and 8 of the deawings.
Blanket-straps e are likewise attached to the top foundation B by rivets passed through the sole-leather w of said'foundation, as shown in Figs. 2 and 4.
In the inverted plan Fig. 3 of Fig. 2, is shown the relation of the straps d, Fig. 4 to the lower foundation A of the knapsack,to gether'with the handle j and short bucklestraps 7l, which receive the ends of iap-straps g. (Shown in Figs. 2 and 6.) These iiapstraps at their upper ends are secured between the canvas and the sole-leather w of foundation B-say five inches from the ends of the sole-leather-by rivets passing through them and the sole-leather. They then pass through the loops p', one of which is shown in section in Fig. 2, attached to the inside of the canvas of division B and situate just beneath the face of the sole-leather of the foundation B. They thence pass down obliquely, crossing each other as they pass out of the clothes-hole q', pass on through p, Figs. 2 and 6, then through loops s on the inside of the flap, and finally enter and are secured at their lower ends in buckle-straps h, as shown in Figs. 2 and 3.
' Fig. l of the drawings shows the same principle of clothing or slinging knapsacks, with the addition of back-straps f, crossed midway of division B,their lower ends being secured by rivets to the sole-leather w of the bottom foundation A, and between the buckle-straps d and the outer surface of said foundation. The outer ends of said back-straps f, as shown in Fig. l, pass through loops n, attached to the canvas of division B, and thence through loops i', attached by rivets to the sole-leather w of the upper foundation B, and thence are intended to pass into and be secured in buckles c, Fig. 4, attached to the neck-and-shoulder strap o, as seen in said last-named Iigure,such neck-and-shoulder strap, as shown and applied in Fig. 4, being as equally applicable to the outer ends of straps f in Fig. l as to straps b in Fig. 4, the ends of said neck-and-shoulder straps passing through and being secuied in buckle-straps CZ in both cases.
I have thus shown two modes of carrying out my invention, both of which illustrate the principle of supportinga knapsack at its bottom and both being capable of adjusting in various iixed elevated positions a knapsack upon the back and shoulders of the wearer in a Vertical line, or nearly so, corresponding with the erect position of a soldiers body, and also permitting the knapsack to assume variable lines of gravity with reference to the back and shoulders of the wearer when in any one of the several elevated positions of which it is capable. These functions of a knapsack, when slung with straps after my inode, is clearly illustrated by Figs. 7'and 8, Sheet 2 of the drawings, Fig. 7 showing a knapsack A in black lines occupying the usualposition on the back of asoldier, with the line of gravity, as shown at .fr in blue ink, and a variation therefrom, as shown in saine iigure by n3 5c', effected by merely letting out or lengthening the straps b between their points of attachment to the knapsack and the neck-and-shoulder strap.
Fig. 8 shows still another variation in the position of the knapsack Aof Fig. 7, effected by buckling up the ends of neck-and-shoulder strap ci and letting out or lengthening the straps Z9 between their points of attachment to the neck-andshoulder strap and the knapsack, the ends of a being buckled up the saine length that the straps b are let out, thus causing the knapsack to rise in a vertical line,
or nearly so, above the horizontal line it occupied, as shown in black in Fig. 7; and while in this elevated position, as shown in black lines in Fig. 8, the knapsack may still be made to vary its position, as illustrated in red, by simply still further letting out the straps b, the bottom of the knapsack retaining `the Same point of elevation previously given it.
It is thus obvious that. very many changes may be given to a knapsack constructed and operated upon my mode over and above the ordinary knapsack, each variation in tlieposition readily made, and while the soldier is on the line of march bringing into play either a different set of the muscles of his body or causing the strain upon one set of musclesto be transferred to others, thus relieving him from the monotonous and long-continued strain upon a given set.
Fig. 5 shows the application of my neck-andshoulder strap to the top and bottom vof a knapsack, which has back-straps f running lengthwise instead of being crossed upon division B, said straps at their bottom and top ends passing loosely through loops attached to the top and bottom foundations of the knapsack, and thereafter being connected to the neck-and-shoulder strap a, as shown in said figure.
Fig. 9 represents the form of wooden side walls which are to be adj usted inside the knapsack, their ends abutting against thev ends of the upper and 'lower foundations B and A their length being the same as the length of the knapsack inside and their width at their extremities the saine as the inside width of the knapsack to which they are intended to be applied. They maybe three-eighths of an inch in thickness and hollowed out on their inner face edge, as at tts, thus measurably conforming that part of the knapsack which adjoins the back and shoulders to the outline of those parts of the body of the wearer. They thus cau-se the knapsack to present to the back and shoulders an outline of abutment which affords under some positions of a knapsack greater ease and comfort, prevent the bagging of the kiiapsack, at the same time subserving the purpose, in a general sense, of securing to it proper form and stability. Said walls are held in place simply by contact with a portion of the interior surface of a knapsack and are removable at pleasure.
Having thus described my improved mode of slinging knapsacks, what I claim as new, and desire to secure by Letters Patent of the United States, is-
l. Arranging, disposing, and attaching straps to and upon a knapsack so that its top may be allowed to fall away from contact with the shoulders and spine of the wearer for the purpose of Ventilating the back and shoulders of the wearer, and at the saine time cause a different set of muscles to be brought into action,in the manner substantially as described.
2. Arranging and adapting straps to support and con line a knapsack to the shoulders and back of the wearer so that it can be raised and lowered in a vertical line or nearly in a Vertical line upon the back and shoulders of the wearer and be held in the desired fixed position on such line at the will of the operator, in the mann er substantially as described.
3. A combined freehand-shoulder strap hewiug connections with a knapsaek by intermediate straps at points which are at or near the top and base of the knapsack, for the purpose specified.
4. The combination ofthe removable Curved side walls with the adjusting-straps, whereby JOSEPH SHORT.
Witnesses:
F. P. HALE, Jr., J. R. HAMPTON.
Publications (1)
Publication Number | Publication Date |
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US34272A true US34272A (en) | 1862-01-28 |
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ID=2103857
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Application Number | Title | Priority Date | Filing Date |
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US34272D Expired - Lifetime US34272A (en) | Improvement in knapsacks |
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US (1) | US34272A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5431317A (en) * | 1994-02-24 | 1995-07-11 | Kliot; Eugene | Multimode traveling bag |
US20030006531A1 (en) * | 1999-12-22 | 2003-01-09 | Sherrill W. Michael | Method and tool for forming objects from clay |
US20030032572A1 (en) * | 2001-08-03 | 2003-02-13 | Peter Morton | Process for reducing the passive layer from the surface of a metal |
US20050117817A1 (en) * | 2003-01-13 | 2005-06-02 | Mogil Melvin S. | Foldable insulated bag |
USD690502S1 (en) | 2011-07-08 | 2013-10-01 | Bart Brian Bergquist | Convertible carrying case |
US8820596B1 (en) | 2011-07-08 | 2014-09-02 | Bart Brian Bergquist | Convertible carrying case |
USD855311S1 (en) | 2018-02-16 | 2019-08-06 | Bart Brian Bergquist | Carrying case |
-
0
- US US34272D patent/US34272A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5431317A (en) * | 1994-02-24 | 1995-07-11 | Kliot; Eugene | Multimode traveling bag |
US20030006531A1 (en) * | 1999-12-22 | 2003-01-09 | Sherrill W. Michael | Method and tool for forming objects from clay |
US20030032572A1 (en) * | 2001-08-03 | 2003-02-13 | Peter Morton | Process for reducing the passive layer from the surface of a metal |
US20050117817A1 (en) * | 2003-01-13 | 2005-06-02 | Mogil Melvin S. | Foldable insulated bag |
USD690502S1 (en) | 2011-07-08 | 2013-10-01 | Bart Brian Bergquist | Convertible carrying case |
US8820596B1 (en) | 2011-07-08 | 2014-09-02 | Bart Brian Bergquist | Convertible carrying case |
US9717322B1 (en) | 2011-07-08 | 2017-08-01 | Bart Brian Bergquist | Convertible carrying case |
US10433633B1 (en) | 2011-07-08 | 2019-10-08 | Bart Brian Bergquist | Convertible carrying case |
US11653746B1 (en) | 2011-07-08 | 2023-05-23 | Bart Brian Bergquist | Convertible carrying case |
USD855311S1 (en) | 2018-02-16 | 2019-08-06 | Bart Brian Bergquist | Carrying case |
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