US2767526A - Resilient pressure finger for a sanding machine - Google Patents

Resilient pressure finger for a sanding machine Download PDF

Info

Publication number
US2767526A
US2767526A US425421A US42542154A US2767526A US 2767526 A US2767526 A US 2767526A US 425421 A US425421 A US 425421A US 42542154 A US42542154 A US 42542154A US 2767526 A US2767526 A US 2767526A
Authority
US
United States
Prior art keywords
thin
sanding machine
base end
sheet
sanding
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
Application number
US425421A
Inventor
John O Moran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US425421A priority Critical patent/US2767526A/en
Application granted granted Critical
Publication of US2767526A publication Critical patent/US2767526A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/003Wheels having flaps of flexible abrasive material supported by a flexible material

Definitions

  • the present invention relates to the power sanding art and, more specifically, relates to a resilient pressure finger adapted for removable engagement with respect to a power sanding machine (usually, though not necessarily, of the kind including a power-rotated sanding wheel provided with suitable thin-sheet abrasive paper, or the like) whereby to resiliently apply pressure to the rear side of the thin-sheet abrasive strip.
  • a power sanding machine usually, though not necessarily, of the kind including a power-rotated sanding wheel provided with suitable thin-sheet abrasive paper, or the like
  • This arrangement makes it possible, by using a plurality of said pressure fingers, to bias a plurality of strips of the thin sheet abrasive, to very elfectively power sand surfaces of various contours, including irregular contoured surfaces, and the like, which would be extremely difficult to effectively sand with other sanding machines rigidly supporting the abrasive paper.
  • This arrangement is also extremely effective for sanding surfaces susceptible to damage when sanded with other sanding machines rigidly supporting the abrasive paper or cloth.
  • the present invention includes a thin-sheet, elastomeric, longitudinal body defined by a contact end and a base end longitudinally spaced apart and two side edges laterally spaced apart.
  • the base end may be provided with integral (usually, though not necessarily, elastomeric) engaging means (usually, though not necessarily, comprising virtually laterally directed ridge means) cooperable (preferably, though not necessarily, slidably cooperable) for removable engagement with respect to a sanding machine (usually, though not necessarily, with respect to a similar engaging channel carried by a sanding machine) to effectively mount the contact end in resiliently defiectable projecting relationship with respect to the sanding machine.
  • integral (usually, though not necessarily, elastomeric) engaging means usually, though not necessarily, comprising virtually laterally directed ridge means) cooperable (preferably, though not necessarily, slidably cooperable) for removable engagement with respect to a sanding machine (usually, though not necessarily, with respect to a similar engaging channel carried by a sanding machine)
  • the thin-sheet elastomeric longitudinal body may be eifec tively longitudinally tapered from a relatively thick base end to a relatively thin contact end.
  • the thin-sheet elastomeric longitudinal body comprises an interior thin-sheet fibrous matrix and an exterior thinsheet elastomeric coating effectively bonded thereto or therearound.
  • the sanding machine resilient pressure finger of the present invention overcomes the undesirable features of prior art power sanding machines by making it possible to very effectively power sand relatively delicate or easily damaged surfaces and/or surfaces of contours not readily sanded by power sanding machines relatively rigidly backing-up the abrasive paper or cloth employed.
  • the sanding machine resilient pressure finger of the present invention is of a construction such as to make it possible to apply various desired amounts of sanding pressure to a surface being sanded without in any way damaging the resilient pressure finger (or plurality thereof).
  • Atent O ice 2 it is an object of the atent O ice 2 present invention to provide an elastomeric resilient pressure finger adapted for removable engagement with respect to a power sander to effectively apply pressure to the rear side of a thin-sheet of abrasive when the power sander is operated and is forced into sanding relationship with respect to a surface to be sanded.
  • a plurality of such pressure fingers are so mounted at a plurality of spaced locations along or around a driven or rotated member of the sanding machine.
  • Fig. l is a fragmentary, elevational view of one embodiment of a rotary power sanding machine with a plurality of the resilient pressure fingers of the present invention shown mounted in operative relationship with respect to a driven sander wheel and with respect to a plurality of abrasive strips, however, in order to facilitate the specific description, one of the pressure fingers has been removed from one of the engaging channels of the driven sander wheel;
  • Fig. 2 is a perspective view of one of the pressure fingers by itself
  • Fig. 3 is another perspective view of the pressure finger shown in Fig, 2 as seen from another viewpoint;
  • Fig. 4 is a vertical sectional view taken in the direction of the arrows IVIV in Fig. 2;
  • Fig. 5 is a side elevational view of a slightly modified form of the invention.
  • Fig. 6 is a vertical sectional view, similar in aspect to Fig. 4, but illustrating a slightly modified form of the invention.
  • the present invention includes a thin-sheet, elastomeric, longitudinal body defined by a contact end and a base end longitudinally spaced apart and two side edges laterally spaced apart.
  • said body is indicated generally at 1 and is tapered from a relatively thick base end 2 to a relatively thin contact end 3 and is laterally defined by virtually parallel side edges 4 and 5.
  • the base end may be provided with integral engaging means cooperable for removable engagement with respect to a sanding machine (to effectively mount said contact end in resiliently deflectable, projecting relationship with respect to the sanding machine).
  • the integral engaging means takes the form of a laterally directed elastomeric ridge 6 of virtually rectangular cross-section carried by the right side (as viewed in the figures) of the base end 2.
  • the base end 2 and the engaging ridge 6 of the pressure finger shown in Figs. 2, 3 and 4 is adapted to be slidably inserted into the corresponding engaging channel 7 carried by a power driven sanding wheel, indicated generally at 8, with the shoulder produced by the engaging ridge 6 lying immediately under a retaining lip 9 comprising part of the engaging channel 7 carried by the driven sander wheel 8.
  • the arrangement is such that the outer free contact end 3 will be positioned immediately behind an abrasive strip whereby counterclockwise rotation of the driven sander wheel 8 will efiectively cause the contact end 3 to efiectively apply pressure to the back of the abrasive strip 10 when the rotating, circumferentially spaced, plurality of contact ends 3 push the plurality of abrasive strips 10 into contact with a surface to be sanded. This will eifectively sand surfaces and/or materials which would be extremely difiicult to sand with power-driven rigidly backed abrasive means.
  • the driven sanding wheel 8 is adapted to be controllably rotated in counterclockwise direction, as viewed in Fig. 1, by suitable motor means, or the like (not shown since such motor means is well known in the art).
  • Each of the eight abrasive strips 10 is adjacently, spirally wound (with the abrasive side in) in close lateral association with the other abrasive strips, around a dispensing hub 11, as indicated generally at 12.
  • the thin-sheet, elastomeric, longitudinal body may include an interior thin-sheet matrix (usually fibrous) and an exterior thin-sheet elastomeric coating effectively bonded thereto or therearound.
  • the fibrous matrix is indicated at 16, and the outer elastomeric coating is indicated at 17.
  • the fibrous matrix 16 may comprise a structure similar to automobile tire cord material, or any other suitable, flexible, thin-sheet reinforcing material.
  • the outer coating 17 may comprise any suitable elastomeric material such as rubber, or the like. This may also be true of the engaging ridge 6.
  • Fig. 5 illustrates a slightly modified form of the present invention wherein the body 1' and the contact end 3' are effectively, longitudinally slit into a plurality of adjacent upstanding resilient finger portions.
  • This arrangement is particularly effective when the sander is to be used in sanding along a narrow grooved or recessed area in a surface to be sanded rather than across said narrow grooved or recessed area.
  • Parts of this modification similar to the first form of the present invention are designated by similar reference numerals, singly primed, however.
  • Fig. 6 illustrates another modification of the present invention wherein the engaging means 6" projects from each side of the base 2" or, in effect, comprises the whole bottom of the base and the doubly projecting ridges.
  • this version of the present invention is adapted for slidable engagement with an engaging channel slightly different from the engaging channel 7 shown in Fig. l, and having two retaining lips, similar to the retaining lip 9 shown in Fig. l, and each adapted to abut one of the engaging ridges 6".
  • the body may assume a form other than tapered, and, in width and length, may assume a variety of configurations.
  • the engaging means may also be substantially modified.
  • the matrix may be substantially modified, and in cer tain forms of the present invention, may be eliminated entirely.
  • fibrous as used herein is not intended to limit the matrix to an assembly (woven or otherwise) of natural fibers, but is intended to include and comprehend any flexible, reinforcing matrix material having desirable tensile strength characteristics.
  • compositions, configurations, constructions, relative positionings, and cooperative relationships of the various component parts of the present invention are not critical, and can be modified substantially within the spirit of the present invention.
  • a resilient pressure finger adapted to be removably engaged in projecting relationship with respect to a sanding machine for resiliently applying pressure to the rear side of a thin-sheet abrasive carried by the sanding machine, comprising: ra thin-sheet elastomeric longitudinal body defined by 'a contact end and a base end longitudinally spaced apart and two side edges laterally spaced apart, said base end being provided with integral ridged engaging means extending laterally in a direct-ion virtually parallel to an imaginary lateral axis of said base end and extending from said base end in a direction transverse from said imaginary base end lateral axis in a manner defining a non-circular cross-section having more of said engaging means on one side of said imaginary base end lateral axis in at least one region than in other regions thereby effectively keying said engaging means with respect to said imaginary base end lateral axis, said engaging means being slidably cooperable for removable slidable engagement with respect to a corresponding virtually similarly cross-sectionally
  • a resilient pressure finger adapted to be remova'bly engaged in projecting relationship with respect to a sanding machine for resiliently applying pressure to the rear side of a thin-sheet abrasive carried by the sanding machine, comprising: a thin-sheet elastomeric longitudinal body defined by a thin contact end and a thicker base end longitudinally spaced apart and two side edges laterally spaced apart, said body being effectively tapered in thickness from said base end toward said contact end, said base end being provided with an integral engaging means extending laterally in a direction virtually parallel to an imaginary lateral axis of said base end and extending from said base end in a direction transverse from said imaginary base end lateral axis in a manner defining a virtually rectangular cross-section thereby effectively keying said engaging means with respect to said imaginary base end lateral axis, said engaging means being slidably cooperable for removable slidable engagement with respect to a corresponding virtually similarly rectangularly eross-sectionally shaped engaging channel carried by a s
  • a resilient pressure finger adapted to be removably engaged in projecting relationship with respect to a sanding machine for resiliently applying pressure to the rear side of a thin-sheet abrasive carried by the sanding machine, comprising: a thin-sheet elastomeric longitudinal body defined by a thin contact end and a thicker base end longitudinally spaced apart and two side edges laterally spaced apart, said body being efiectively tapered in thickness from said base end toward said contact end, said base end being provided with an integral engaging means extending laterally in a direction virtually parallel to an imaginary lateral axis of said base end and extending from said base end in a direction transverse from said imaginary base end lateral axis in a manner defining a virtually rectangular cross-section thereby effectively keying said engaging means with respect to said imaginary base end lateral axis, said engaging means being slidably cooperable for removable slida'ble engagement with respect to a corresponding virtually similarly rec- 6 tangularly cross-sectionally shaped engaging channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

J. O. MORAN RES ZELIENT PRESSURE FINGER FOR A SANDING MACHINE Filed April 26; 1954 INVENTOR. JOHN O. MOQAN Unite States RESILIENT PRESSURE FINGER FOR A SANDING MACHINE Generally speaking, the present invention relates to the power sanding art and, more specifically, relates to a resilient pressure finger adapted for removable engagement with respect to a power sanding machine (usually, though not necessarily, of the kind including a power-rotated sanding wheel provided with suitable thin-sheet abrasive paper, or the like) whereby to resiliently apply pressure to the rear side of the thin-sheet abrasive strip. This arrangement makes it possible, by using a plurality of said pressure fingers, to bias a plurality of strips of the thin sheet abrasive, to very elfectively power sand surfaces of various contours, including irregular contoured surfaces, and the like, which would be extremely difficult to effectively sand with other sanding machines rigidly supporting the abrasive paper. This arrangement is also extremely effective for sanding surfaces susceptible to damage when sanded with other sanding machines rigidly supporting the abrasive paper or cloth.
Generally speaking, the present invention includes a thin-sheet, elastomeric, longitudinal body defined by a contact end and a base end longitudinally spaced apart and two side edges laterally spaced apart. The base end may be provided with integral (usually, though not necessarily, elastomeric) engaging means (usually, though not necessarily, comprising virtually laterally directed ridge means) cooperable (preferably, though not necessarily, slidably cooperable) for removable engagement with respect to a sanding machine (usually, though not necessarily, with respect to a similar engaging channel carried by a sanding machine) to effectively mount the contact end in resiliently defiectable projecting relationship with respect to the sanding machine.
In one preferred form of the present invention, the thin-sheet elastomeric longitudinal body may be eifec tively longitudinally tapered from a relatively thick base end to a relatively thin contact end.
In one preferred generic form of the present invention, the thin-sheet elastomeric longitudinal body comprises an interior thin-sheet fibrous matrix and an exterior thinsheet elastomeric coating effectively bonded thereto or therearound.
From the above description of the basic and several preferred generic forms of the present invention, it will be apparent to those skilled in the art that the sanding machine resilient pressure finger of the present invention overcomes the undesirable features of prior art power sanding machines by making it possible to very effectively power sand relatively delicate or easily damaged surfaces and/or surfaces of contours not readily sanded by power sanding machines relatively rigidly backing-up the abrasive paper or cloth employed.
Furthermore, the sanding machine resilient pressure finger of the present invention is of a construction such as to make it possible to apply various desired amounts of sanding pressure to a surface being sanded without in any way damaging the resilient pressure finger (or plurality thereof).
'- With the above points in mind, it is an object of the atent O ice 2 present invention to provide an elastomeric resilient pressure finger adapted for removable engagement with respect to a power sander to effectively apply pressure to the rear side of a thin-sheet of abrasive when the power sander is operated and is forced into sanding relationship with respect to a surface to be sanded.
It is a further object of the present invention to provide a pressure finger of the character set forth in the preceding object, also having integral, elastomeric engaging means adapted for removable engagement with respect to the power sander to elfectively mount the pressure finger in outwardly projecting operative relationship with respect to the sander. Usually, a plurality of such pressure fingers are so mounted at a plurality of spaced locations along or around a driven or rotated member of the sanding machine.
Other and allied objects will be apparent to those skilled in the art after a careful perusal, examination and study of the accompanying illustrations, the present specification and the appended claims.
To facilitate understanding, reference will be made to the hereinbelow-described drawings, in which:
Fig. l is a fragmentary, elevational view of one embodiment of a rotary power sanding machine with a plurality of the resilient pressure fingers of the present invention shown mounted in operative relationship with respect to a driven sander wheel and with respect to a plurality of abrasive strips, however, in order to facilitate the specific description, one of the pressure fingers has been removed from one of the engaging channels of the driven sander wheel;
Fig. 2 is a perspective view of one of the pressure fingers by itself;
Fig. 3 is another perspective view of the pressure finger shown in Fig, 2 as seen from another viewpoint;
Fig. 4 is a vertical sectional view taken in the direction of the arrows IVIV in Fig. 2;
Fig. 5 is a side elevational view of a slightly modified form of the invention, and
Fig. 6 is a vertical sectional view, similar in aspect to Fig. 4, but illustrating a slightly modified form of the invention.
Generally speaking, the present invention includes a thin-sheet, elastomeric, longitudinal body defined by a contact end and a base end longitudinally spaced apart and two side edges laterally spaced apart.
In the specific example illustrated in Figs. 1 through 4, inclusive, said body is indicated generally at 1 and is tapered from a relatively thick base end 2 to a relatively thin contact end 3 and is laterally defined by virtually parallel side edges 4 and 5.
Also, generally speaking, the base end may be provided with integral engaging means cooperable for removable engagement with respect to a sanding machine (to effectively mount said contact end in resiliently deflectable, projecting relationship with respect to the sanding machine).
In the specific example illustrated in Figs. 1 through 4, inclusive, the integral engaging means takes the form of a laterally directed elastomeric ridge 6 of virtually rectangular cross-section carried by the right side (as viewed in the figures) of the base end 2.
In the example illustrated, the base end 2 and the engaging ridge 6 of the pressure finger shown in Figs. 2, 3 and 4 is adapted to be slidably inserted into the corresponding engaging channel 7 carried by a power driven sanding wheel, indicated generally at 8, with the shoulder produced by the engaging ridge 6 lying immediately under a retaining lip 9 comprising part of the engaging channel 7 carried by the driven sander wheel 8.
The arrangement is such that the outer free contact end 3 will be positioned immediately behind an abrasive strip whereby counterclockwise rotation of the driven sander wheel 8 will efiectively cause the contact end 3 to efiectively apply pressure to the back of the abrasive strip 10 when the rotating, circumferentially spaced, plurality of contact ends 3 push the plurality of abrasive strips 10 into contact with a surface to be sanded. This will eifectively sand surfaces and/or materials which would be extremely difiicult to sand with power-driven rigidly backed abrasive means.
While the invention claimed herein comprises a novel, elastomeric, resilient pressure finger, nevertheless it is thought desirable to briefly describe the sanding machine, which is partially illustrated in Fig. 1.
It should be understood that the driven sanding wheel 8 is adapted to be controllably rotated in counterclockwise direction, as viewed in Fig. 1, by suitable motor means, or the like (not shown since such motor means is well known in the art). Each of the eight abrasive strips 10 is adjacently, spirally wound (with the abrasive side in) in close lateral association with the other abrasive strips, around a dispensing hub 11, as indicated generally at 12. The dispensing hub 11 and locking cover 11A and bracket 13, threaded bolt 14 and threaded nut 15 engaged therewith, cooperate to allow the outer ends of each of the abrasive strips 10 to be selectively unreeled from around the drum 11 to allow effective replacement of worn-out-of frayed abrasive strip ends with fresh unused portions thereof. This makes it possible to, at all times, present fresh and effective abrasive surfaces to the areas to be sanded. If desired, the frayed worn-out outer ends of the abrasive strips 10 may be out OK or otherwise suitably removed.
It should be noted that certain portions of the sanding wheel and hub and associated apparatus have been removed for clarity.
Also, generally speaking, in one preferred form of the present invention, the thin-sheet, elastomeric, longitudinal body may include an interior thin-sheet matrix (usually fibrous) and an exterior thin-sheet elastomeric coating effectively bonded thereto or therearound.
In the specific example illustrated in Fig. 4, the fibrous matrix is indicated at 16, and the outer elastomeric coating is indicated at 17. The fibrous matrix 16 may comprise a structure similar to automobile tire cord material, or any other suitable, flexible, thin-sheet reinforcing material. The outer coating 17 may comprise any suitable elastomeric material such as rubber, or the like. This may also be true of the engaging ridge 6.
Fig. 5 illustrates a slightly modified form of the present invention wherein the body 1' and the contact end 3' are effectively, longitudinally slit into a plurality of adjacent upstanding resilient finger portions. This arrangement is particularly effective when the sander is to be used in sanding along a narrow grooved or recessed area in a surface to be sanded rather than across said narrow grooved or recessed area. Parts of this modification similar to the first form of the present invention are designated by similar reference numerals, singly primed, however.
Fig. 6 illustrates another modification of the present invention wherein the engaging means 6" projects from each side of the base 2" or, in effect, comprises the whole bottom of the base and the doubly projecting ridges. It should be understood that this version of the present invention is adapted for slidable engagement with an engaging channel slightly different from the engaging channel 7 shown in Fig. l, and having two retaining lips, similar to the retaining lip 9 shown in Fig. l, and each adapted to abut one of the engaging ridges 6".
Numerous modifications and variations of the present invention will occur to those skilled in the art after a careful study hereof. All such properly within the basic spirit and scope of the present invention are intended to be included and comprehended herein as fully as if specifically described, illustrated and claimed herein.
For example, in certain forms of the present invention, the body may assume a form other than tapered, and, in width and length, may assume a variety of configurations. The engaging means may also be substantially modified.
The matrix may be substantially modified, and in cer tain forms of the present invention, may be eliminated entirely. Incidentally, in connection with the matrix, it should be noted that the term fibrous as used herein is not intended to limit the matrix to an assembly (woven or otherwise) of natural fibers, but is intended to include and comprehend any flexible, reinforcing matrix material having desirable tensile strength characteristics.
The exact compositions, configurations, constructions, relative positionings, and cooperative relationships of the various component parts of the present invention are not critical, and can be modified substantially within the spirit of the present invention.
The embodiments of the present invention specifically described and illustrated herein are exemplary only, and are not intended to limit the scope of the present invention, which is to be interpreted in the light of the prior art and the appended claims only, with due consideration for the doctrine of equivalents.
I claim:
1. A resilient pressure finger adapted to be removably engaged in projecting relationship with respect to a sanding machine for resiliently applying pressure to the rear side of a thin-sheet abrasive carried by the sanding machine, comprising: ra thin-sheet elastomeric longitudinal body defined by 'a contact end and a base end longitudinally spaced apart and two side edges laterally spaced apart, said base end being provided with integral ridged engaging means extending laterally in a direct-ion virtually parallel to an imaginary lateral axis of said base end and extending from said base end in a direction transverse from said imaginary base end lateral axis in a manner defining a non-circular cross-section having more of said engaging means on one side of said imaginary base end lateral axis in at least one region than in other regions thereby effectively keying said engaging means with respect to said imaginary base end lateral axis, said engaging means being slidably cooperable for removable slidable engagement with respect to a corresponding virtually similarly cross-sectionally shaped engaging channel in a sanding machine to eflectively mount said contact end in resiliently defiectable projecting relationship with respect to the sanding machine; said thin-sheet elastomeric longitudinal body including an interior thin-sheet fibrous matrix and an exterior thin-sheet elastomeric coating effectively bonded together.
2. A resilient pressure finger adapted to be remova'bly engaged in projecting relationship with respect to a sanding machine for resiliently applying pressure to the rear side of a thin-sheet abrasive carried by the sanding machine, comprising: a thin-sheet elastomeric longitudinal body defined by a thin contact end and a thicker base end longitudinally spaced apart and two side edges laterally spaced apart, said body being effectively tapered in thickness from said base end toward said contact end, said base end being provided with an integral engaging means extending laterally in a direction virtually parallel to an imaginary lateral axis of said base end and extending from said base end in a direction transverse from said imaginary base end lateral axis in a manner defining a virtually rectangular cross-section thereby effectively keying said engaging means with respect to said imaginary base end lateral axis, said engaging means being slidably cooperable for removable slidable engagement with respect to a corresponding virtually similarly rectangularly eross-sectionally shaped engaging channel carried by a sanding machine whereby to effectively mount said thin contact and in resiliently defiectable outwardly projecting relationship with respect to the sanding machine; said thin-sheet elastomeric longitudinal body including an interior thin-sheet fibrous matrix and an exterior thinsheet elastomeric coating effectively bonded together.
3. A resilient pressure finger adapted to be removably engaged in projecting relationship with respect to a sanding machine for resiliently applying pressure to the rear side of a thin-sheet abrasive carried by the sanding machine, comprising: a thin-sheet elastomeric longitudinal body defined by a thin contact end and a thicker base end longitudinally spaced apart and two side edges laterally spaced apart, said body being efiectively tapered in thickness from said base end toward said contact end, said base end being provided with an integral engaging means extending laterally in a direction virtually parallel to an imaginary lateral axis of said base end and extending from said base end in a direction transverse from said imaginary base end lateral axis in a manner defining a virtually rectangular cross-section thereby effectively keying said engaging means with respect to said imaginary base end lateral axis, said engaging means being slidably cooperable for removable slida'ble engagement with respect to a corresponding virtually similarly rec- 6 tangularly cross-sectionally shaped engaging channel car ried by a sanding machine whereby to effectively mounl: said thin contact end in resiliently defiectable outwardl projecting relationship with respect to the sanding machine; said thin-sheet elastomeric longitudinal body in cluding an interior thin-sheet fibrous matrix and an ex ter-i-or thin-sheet elastomeric coating effectively bondec together, said contact end of said longitudinal body comprising a plurality of longitudinal, similar, laterally adjacent, resilient finger portions.
References Cited in the file of this patent UNITED STATES PATENTS 1,670,068 Grimes May 15, 1928 2,418,966 Bonkowski Apr. 15, 1947 2,430,099 Bradley Nov. 4, 1947 2,474,063 Newton June 21, 1949 2,549,043! Arthur Apr. 17, 1951 2,597,421 White May 20, 1952 2,625,774 Tenny Jan. 20, 1953
US425421A 1954-04-26 1954-04-26 Resilient pressure finger for a sanding machine Expired - Lifetime US2767526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US425421A US2767526A (en) 1954-04-26 1954-04-26 Resilient pressure finger for a sanding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425421A US2767526A (en) 1954-04-26 1954-04-26 Resilient pressure finger for a sanding machine

Publications (1)

Publication Number Publication Date
US2767526A true US2767526A (en) 1956-10-23

Family

ID=23686499

Family Applications (1)

Application Number Title Priority Date Filing Date
US425421A Expired - Lifetime US2767526A (en) 1954-04-26 1954-04-26 Resilient pressure finger for a sanding machine

Country Status (1)

Country Link
US (1) US2767526A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070798A (en) * 1975-08-26 1978-01-31 Jean Emain Polishing wheels
US4184223A (en) * 1978-05-25 1980-01-22 Price John G Sweeper bristle element
US4229912A (en) * 1978-05-30 1980-10-28 Laughlin William F Take-apart convertible rotary tool
US4277917A (en) * 1979-04-19 1981-07-14 Ali Christopher A Sanding, buffing and/or polishing wheel
DE3047877A1 (en) * 1980-12-18 1982-07-22 Bayerische Motoren Werke AG, 8000 München Rotary rubbing tool for lacquer coat on car body - has hub carrying relatively stiff leaf-shaped radial abrasive members of equal length
US4461127A (en) * 1981-11-19 1984-07-24 The Boeing Company Abrading tool
US4493170A (en) * 1981-11-19 1985-01-15 The Boeing Company Abrading tool
WO2011054357A1 (en) * 2009-10-21 2011-05-12 Vestas Wind Systems A/S Abrading elements for an abrading machine, and a machine and an abrading head having such abrading elements
US20150321319A1 (en) * 2012-12-04 2015-11-12 Kadicma Tool having a rotating processing unit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670068A (en) * 1927-02-23 1928-05-15 Charles P Grimes Tool for lapping internal surfaces
US2418966A (en) * 1944-11-23 1947-04-15 Teofil L Bonkowski Sanding drum
US2430099A (en) * 1945-07-02 1947-11-04 Vonnegut Moulder Corp Abrasive head
US2474063A (en) * 1948-05-06 1949-06-21 Herman S Newton Brush sander head
US2549043A (en) * 1948-05-18 1951-04-17 Lisle Corp Glaze breaker
US2597421A (en) * 1949-05-17 1952-05-20 Edwin H White Abrading unit
US2625774A (en) * 1949-09-23 1953-01-20 Arsdale Corp Van Rotary abrasive head

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670068A (en) * 1927-02-23 1928-05-15 Charles P Grimes Tool for lapping internal surfaces
US2418966A (en) * 1944-11-23 1947-04-15 Teofil L Bonkowski Sanding drum
US2430099A (en) * 1945-07-02 1947-11-04 Vonnegut Moulder Corp Abrasive head
US2474063A (en) * 1948-05-06 1949-06-21 Herman S Newton Brush sander head
US2549043A (en) * 1948-05-18 1951-04-17 Lisle Corp Glaze breaker
US2597421A (en) * 1949-05-17 1952-05-20 Edwin H White Abrading unit
US2625774A (en) * 1949-09-23 1953-01-20 Arsdale Corp Van Rotary abrasive head

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070798A (en) * 1975-08-26 1978-01-31 Jean Emain Polishing wheels
US4184223A (en) * 1978-05-25 1980-01-22 Price John G Sweeper bristle element
US4229912A (en) * 1978-05-30 1980-10-28 Laughlin William F Take-apart convertible rotary tool
US4277917A (en) * 1979-04-19 1981-07-14 Ali Christopher A Sanding, buffing and/or polishing wheel
DE3047877A1 (en) * 1980-12-18 1982-07-22 Bayerische Motoren Werke AG, 8000 München Rotary rubbing tool for lacquer coat on car body - has hub carrying relatively stiff leaf-shaped radial abrasive members of equal length
US4461127A (en) * 1981-11-19 1984-07-24 The Boeing Company Abrading tool
US4493170A (en) * 1981-11-19 1985-01-15 The Boeing Company Abrading tool
WO2011054357A1 (en) * 2009-10-21 2011-05-12 Vestas Wind Systems A/S Abrading elements for an abrading machine, and a machine and an abrading head having such abrading elements
US20150321319A1 (en) * 2012-12-04 2015-11-12 Kadicma Tool having a rotating processing unit

Similar Documents

Publication Publication Date Title
US2767526A (en) Resilient pressure finger for a sanding machine
DE69500754T2 (en) Improved oscillating hand tool
DE69213444T2 (en) Grinding tool
US4357198A (en) Tape applicator
US3147658A (en) Apparatus for perforating sheets
US3616581A (en) Polishing and grinding rotary finishing tool
US2474013A (en) Tread lug rebuilding method for tires
US3934509A (en) Mounting means for a printing plate
US2638642A (en) Sealing strip
US2926375A (en) Wiper blade
JPS5815623A (en) Assembled body of file plate
US3129541A (en) Abrasive tools
US2495870A (en) Trim attaching device
US5140752A (en) Automotive adhesive emblem remover
US2760217A (en) Sandpaper block and brush holder
US3798847A (en) Hinge type finishing packs with replaceable units for cylindrical hub structures
US5403229A (en) Foot pad extender for a belt sander
EP1394295A2 (en) Device and pressure rib for cutting fibres into pieces
US2746216A (en) Sanding attachment
US2109606A (en) Cleaning device
DE102017211192A1 (en) Sanding pad and sanding shoe
US1577485A (en) Abrasive apron
US3014319A (en) Moulded back-up pad
HU220931B1 (en) Improved completive shim for rotary grinder
US2424167A (en) Strip locking means for abrading and polishing machines