US20050146190A1 - Adjustable retainer for a headrest - Google Patents
Adjustable retainer for a headrest Download PDFInfo
- Publication number
- US20050146190A1 US20050146190A1 US10/749,258 US74925804A US2005146190A1 US 20050146190 A1 US20050146190 A1 US 20050146190A1 US 74925804 A US74925804 A US 74925804A US 2005146190 A1 US2005146190 A1 US 2005146190A1
- Authority
- US
- United States
- Prior art keywords
- post
- arm
- retainer
- headrest
- chair back
- 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.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
- A47C1/10—Hairdressers' or similar chairs, e.g. beauty salon chairs with head-rests; with paper holders
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/38—Support for the head or the back for the head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
- A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
- A61G15/125—Head-rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/821—Head-rests movable or adjustable vertically slidable characterised by their locking devices with continuous positioning
Definitions
- the present invention concerns adjustable headrests as found on dental chairs, vehicle seats, etc.
- a headrest is supported by a rib or post extending downwardly into a seat or chair back in a positionable manner.
- Some headrests are positionable, in an incremental fashion, to best support a user's head, the height of which will of course vary with different occupants.
- the headrest In a chair used by several persons during a day, as for example a dental chair, the headrest must be manually adjusted several times a day.
- a headrest should be readily adjustable without substantial physical force being required For example, in a dental office the force required for repeated adjustment during a working should not be excessive or excessive to a dental assistant or the dentist. Further, a headrest should not be susceptible to accidental displacement and yet infinitely adjustable to support the user's head in an optimum manner.
- the present invention is directed toward the provision of a headrest assembly for use in place on chairs or vehicle seats and readily positionable to accommodate a wide range of user sizes.
- a guideway on the seat or chair houses a post for rectilinear positioning. Infinite movement of the post is against the resistance of a retainer assembly to the extent the headrest is not subject to unintentional displacement but yet readily positionable when desired.
- a retainer member is biased into post engagement in a precise manner to permit such positioning with light or heavy forces as desired.
- the retainer assembly is concealed within the chair back but yet readily accessible for retainer adjustment. Access to the retainer assembly is via an opening in the chair back normally occupied by a removable fastener serving to secure a chair fitting. Added structure to a chair to provide such access to the interior of a chair back is thereby avoided as well as detracting from chair appearance.
- a retainer is biased into contact with a post mounted sleeve of synthetic material to provide post adjustment in a controlled manner.
- FIG. 1 is a partial perspective view of a seat or chair back with fragments broken away to show the present invention
- FIG. 2 is an elevational view of the seat or chair back of FIG. 1 with the present invention thereon;
- FIG. 3 is a plan view taken along line 3 - 3 of FIG. 2 ;
- FIG. 4 is a partial elevational view of FIG. 2 with a fastener removed from the chair back and a tool inserted for adjustment of the present retainer assembly;
- FIG. 5 is a perspective view of a retainer arm
- FIG. 6 is a bearing sleeve prior to forming for placement into a chair back mounted guideway or channel
- FIG. 7 is a bottom view of FIG. 6 .
- FIG. 1 indicates generally a fragment of a chair back which may be the back of a dental chair or that of another type of chair for example a vehicle seat.
- FIG. 1 discloses an upholstery component 2 .
- a reference numeral 3 indicates the chair back outer component which is of formed metal.
- a channel 4 extends upwardly along the length of seat back 3 with channel flanges 4 A- 4 B secured to back 3 as by welds.
- Channel 4 and seat back 3 define an elongate open area or guideway 9 for the reception of a post 5 of a headrest assembly which includes a headrest proper at 6 .
- Post 5 corresponds generally in section to the space defined by channel 4 and the seat back to enable rectilinear positioning of post 5 to locate headrest 6 a specific distance from the chair or seat bottom (not shown) to accommodate successive dental patients during a work day.
- tabs 7 At the upper terminus of channel 4 are tabs 7 each with a nut 8 secured thereto.
- a retainer assembly located generally at 12 has a screw 16 with a head for the reception of a tool for adjustment purposes as later described.
- a channel flange 20 carries a threaded element 21 for reception of screw 16 the lower end of which bears upon an arm 22 .
- An arm end 22 A is displaceable relative a side 5 A of post 5 .
- a proximal end segment 23 of arm 22 is moveably mounted on a flange 25 with a stud 24 on the arm projecting through an oversized opening 25 A in flange 25 .
- the somewhat elongate, oversized opening 25 A permits limited arcuate movement of retainer arm 22 in a plane containing post 5 .
- Flange 4 B defines an opening 19 to receive distal end 22 A of arm 22 .
- a bearing sleeve at 26 is shown partially formed in FIG. 6 seats within an upper end segment of channel 4 and provides for smooth, uninterrupted travel of post 5 .
- a segment 27 of the sleeve when installed in channel 4 is intermediate retainer arm distal end 22 A and post side 5 A.
- the bearing sleeve is formed of a suitable synthetic material such as polypropylene with fold grooves at 28 enabling folding of the material into a shape of rectangular cross section.
- an ear 29 of the sleeve extends outwardly from a side of the bearing for reception within a notched portion of channel flange 4 A to fix sleeve bearing 26 within the channel.
- flexibility of the segment is enhanced by slotting of the fold line at 30 .
- a trim plate at 31 on the chair back defines an opening 32 for passage of post 5 .
- Trim plate fasteners at 33 and 34 engage tabs 7 and nut elements 8 .
- Adjustment of threaded member 16 to vary the action of retainer arm 22 on post 5 would be infrequent and achieved upon removal of fastener 34 leaving aligned openings in trim plate 31 and tab 7 , the nut 8 thereon to permit insertion of a tool 35 for engagement with the upper end of adjustable member 16 .
- Tool 35 as shown in FIG. 4 , may have an hexagonal end for driving engagement with adjustable member 16 .
- the headrest post 5 may be virtually locked against any displacement.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transportation (AREA)
- Animal Behavior & Ethology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dentistry (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
A chair back supports a positionable headrest assembly including a post and headrest with the post manually positionable in a channel on the chair back. A retainer arm bears against the post to inhibit post travel against all but deliberately applied force, as for example, by a dental assistant when adjusting a dental chair to accommodate the next patient. A threaded member in the chair back is settable to apply the desired resistance to post travel during headrest adjustment. Access to the threaded member for adjustment purposes may be by an opening in the chair back normally receiving a fastener securing a chair component.
Description
- The present invention concerns adjustable headrests as found on dental chairs, vehicle seats, etc.
- Typically a headrest is supported by a rib or post extending downwardly into a seat or chair back in a positionable manner. Some headrests are positionable, in an incremental fashion, to best support a user's head, the height of which will of course vary with different occupants. In a chair used by several persons during a day, as for example a dental chair, the headrest must be manually adjusted several times a day. Hence a headrest should be readily adjustable without substantial physical force being required For example, in a dental office the force required for repeated adjustment during a working should not be excessive or excessive to a dental assistant or the dentist. Further, a headrest should not be susceptible to accidental displacement and yet infinitely adjustable to support the user's head in an optimum manner.
- The present invention is directed toward the provision of a headrest assembly for use in place on chairs or vehicle seats and readily positionable to accommodate a wide range of user sizes.
- A guideway on the seat or chair houses a post for rectilinear positioning. Infinite movement of the post is against the resistance of a retainer assembly to the extent the headrest is not subject to unintentional displacement but yet readily positionable when desired. A retainer member is biased into post engagement in a precise manner to permit such positioning with light or heavy forces as desired.
- The retainer assembly is concealed within the chair back but yet readily accessible for retainer adjustment. Access to the retainer assembly is via an opening in the chair back normally occupied by a removable fastener serving to secure a chair fitting. Added structure to a chair to provide such access to the interior of a chair back is thereby avoided as well as detracting from chair appearance. A retainer is biased into contact with a post mounted sleeve of synthetic material to provide post adjustment in a controlled manner.
- In the accompanying drawings:
-
FIG. 1 is a partial perspective view of a seat or chair back with fragments broken away to show the present invention; -
FIG. 2 is an elevational view of the seat or chair back ofFIG. 1 with the present invention thereon; -
FIG. 3 is a plan view taken along line 3-3 ofFIG. 2 ; -
FIG. 4 is a partial elevational view ofFIG. 2 with a fastener removed from the chair back and a tool inserted for adjustment of the present retainer assembly; -
FIG. 5 is a perspective view of a retainer arm; -
FIG. 6 is a bearing sleeve prior to forming for placement into a chair back mounted guideway or channel; and -
FIG. 7 is a bottom view ofFIG. 6 . - In the accompanying drawings wherein applied reference numerals indicate parts hereinafter identified, the reference numeral 1 indicates generally a fragment of a chair back which may be the back of a dental chair or that of another type of chair for example a vehicle seat.
FIG. 1 discloses anupholstery component 2. Areference numeral 3 indicates the chair back outer component which is of formed metal. - A
channel 4 extends upwardly along the length of seat back 3 withchannel flanges 4A-4B secured toback 3 as by welds. Channel 4 andseat back 3 define an elongate open area or guideway 9 for the reception of apost 5 of a headrest assembly which includes a headrest proper at 6.Post 5 corresponds generally in section to the space defined bychannel 4 and the seat back to enable rectilinear positioning ofpost 5 to locate headrest 6 a specific distance from the chair or seat bottom (not shown) to accommodate successive dental patients during a work day. At the upper terminus ofchannel 4 aretabs 7 each with anut 8 secured thereto. - A retainer assembly located generally at 12 has a
screw 16 with a head for the reception of a tool for adjustment purposes as later described. Achannel flange 20 carries a threadedelement 21 for reception ofscrew 16 the lower end of which bears upon anarm 22. Anarm end 22A is displaceable relative aside 5A ofpost 5. Aproximal end segment 23 ofarm 22 is moveably mounted on aflange 25 with astud 24 on the arm projecting through an oversized opening 25A inflange 25. The somewhat elongate, oversized opening 25A permits limited arcuate movement ofretainer arm 22 in aplane containing post 5.Flange 4B defines an opening 19 to receivedistal end 22A ofarm 22. - A bearing sleeve at 26 is shown partially formed in
FIG. 6 seats within an upper end segment ofchannel 4 and provides for smooth, uninterrupted travel ofpost 5. Asegment 27 of the sleeve when installed inchannel 4 is intermediate retainer armdistal end 22A andpost side 5A. The bearing sleeve, best shown inFIGS. 6 and 7 , is formed of a suitable synthetic material such as polypropylene with fold grooves at 28 enabling folding of the material into a shape of rectangular cross section. When folded, anear 29 of the sleeve extends outwardly from a side of the bearing for reception within a notched portion ofchannel flange 4A to fix sleeve bearing 26 within the channel. With attention again to bearingsegment 27, flexibility of the segment is enhanced by slotting of the fold line at 30. - Per
FIG. 3 , a trim plate at 31 on the chair back defines anopening 32 for passage ofpost 5. Trim plate fasteners at 33 and 34 engagetabs 7 andnut elements 8. Adjustment of threadedmember 16 to vary the action ofretainer arm 22 onpost 5 would be infrequent and achieved upon removal offastener 34 leaving aligned openings intrim plate 31 andtab 7, thenut 8 thereon to permit insertion of atool 35 for engagement with the upper end ofadjustable member 16.Tool 35. as shown inFIG. 4 , may have an hexagonal end for driving engagement withadjustable member 16. - In some applications of the present headrest retainer, the
headrest post 5 may be virtually locked against any displacement. - While I have shown but one embodiment of the invention, it will be apparent to those skilled in the art that the invention may be embodied still otherwise without departing from the spirit and scope of the claimed invention.
- Having thus described the invention, what is desired to be secured by a Letters Patent is:
Claims (13)
1. In a chair having back and a headrest assembly including a headrest and post, the improvement comprising,
a guideway on the chair back in which the post is carried,
a retainer assembly on the chair back including an arm having a distal end, adjustable means for biasing said distal end toward the post to inhibit post movement along the guideway to enable headrest positioning relative the chair back by selected degrees of manual force.
2. The improvement claimed in claim 1 additionally including bearing of synthetic material interposed between said distal end of the arm and the post of the headrest assembly.
3. The improvement claimed in claim 1 wherein said arm has a proximal end, said guideway having a support member supporting said proximal end of the arm.
4. The improvement claimed in claim 1 wherein said adjustable means includes an adjustment screw.
5. The improvement claimed in claim 4 additionally including a cover plate on the chair back, a fastener normally extending through an opening in said cover plate and into the chair back, said fastener in axial alignment with the adjustment screw and upon fastener removal permitting access to the adjustment screw through the cover plate opening for temporary application of a tool to the adjustment screw to enable varying of the force applied to the post by said arm.
6. In a chair having a back and a headrest assembly including a headrest and a post, the improvement comprising,
a guideway on the chair back receiving the post,
a retainer assembly including a retainer acting on the post, adjustable means for biasing the retainer towards the post to inhibit movement of the post along the guideway, and
a removable fastener normally seated in the chair back and upon fastener removal providing an opening permitting access of a tool to said adjustable means for altering the biasing force of said retainer applied to the post.
7. The improvement claimed in claim 6 wherein said retainer is an arm having a distal end proximate said post.
8. The improvement claimed in claim 7 additionally including a bearing of synthetic material interposed between said distal end of the arm and the post of the headrest assembly.
9. The improvement claimed in claim 6 wherein said guideway has a support member supporting the proximal end of the arm.
10. The improvement claimed in claimed 6 wherein said adjustable means includes an adjustment screw.
11. The improvement claimed in claim 10 additionally including a cover plate on the chair back, a fastener normally extending through an opening in said cover plate and into the chair back, said fastener normally in axial alignment with the adjustment screw and upon fastener removal permitting access to the adjustment screw through the opening for temporary application of a tool to the adjustment screw to enable altering the force applied to the post by said arm and hence post resistance to travel.
12. An adjustable retainer for a headrest assembly supported by the back of a chair or vehicle seat and including,
a guideway carried by the chair back,
a post positionable along the guideway to determine the elevation of a headrest carried by the post,
a retainer arm on the guideway proximate the post for applying a force transversely of the post to inhibit post travel along the guideway and
a threaded member in abutment with the retainer arm and axially positionable to vary the force applied to the post and hence the degree to which post travel is inhibited
13. The adjustable retainer for the headrest claimed in claim 12 additionally including a bearing member of synthetic material interposed between the post and the distal end of the retainer arm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/749,258 US20050146190A1 (en) | 2004-01-02 | 2004-01-02 | Adjustable retainer for a headrest |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/749,258 US20050146190A1 (en) | 2004-01-02 | 2004-01-02 | Adjustable retainer for a headrest |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050146190A1 true US20050146190A1 (en) | 2005-07-07 |
Family
ID=34711040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/749,258 Abandoned US20050146190A1 (en) | 2004-01-02 | 2004-01-02 | Adjustable retainer for a headrest |
Country Status (1)
Country | Link |
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US (1) | US20050146190A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090058163A1 (en) * | 2007-09-04 | 2009-03-05 | Lear Corporation | Height adjustable head restraint for a vehicle seat |
US20090146479A1 (en) * | 2007-12-05 | 2009-06-11 | Lear Corporation | Seat assembly having an adjustable head restraint assembly |
US20090184556A1 (en) * | 2008-01-23 | 2009-07-23 | Lear Corporation | Height adjustable head restraint for a vehicle seat |
US20100156163A1 (en) * | 2008-12-22 | 2010-06-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with low density frame |
US20100156162A1 (en) * | 2008-12-19 | 2010-06-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with integral reinforcement structure |
US20100156152A1 (en) * | 2008-12-22 | 2010-06-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with an adjustable headrest |
US20100270842A1 (en) * | 2009-04-22 | 2010-10-28 | Lear Corporation | Seat assembly having a movable head restraint |
US20100283306A1 (en) * | 2009-05-06 | 2010-11-11 | Lear Corporation | Seat assembly and an adjustable head restraint assembly |
US20120025583A1 (en) * | 2010-07-30 | 2012-02-02 | Nihon Technica Co., Ltd. | Supporting structure of headrest bracket |
US8414053B2 (en) | 2008-12-19 | 2013-04-09 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with integral reinforcement structure |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1602139A (en) * | 1926-10-05 | Headrest supporting and adjusting apparatus | ||
US3578384A (en) * | 1968-11-25 | 1971-05-11 | Mccord Corp | Adjustable headrest for vehicle seats |
US3698765A (en) * | 1971-02-16 | 1972-10-17 | American Hospital Supply Corp | Adjustable headrest for dental chairs |
US4128274A (en) * | 1976-03-05 | 1978-12-05 | U.S. Philips Corporation | Adjusting device for a section of a medical treatment apparatus or examining apparatus |
US4375902A (en) * | 1979-08-23 | 1983-03-08 | Royal Dental Manufacturing, Inc. | Locking headrest for dental chair |
US4483565A (en) * | 1981-06-22 | 1984-11-20 | Ikeda Bussan Co., Ltd. | Head rest stay retaining device |
US4563040A (en) * | 1982-10-15 | 1986-01-07 | Ralph Alster | Furniture assembly |
US4682817A (en) * | 1985-01-24 | 1987-07-28 | Marquette Tool & Die Company | Adjustable head restraint for vehicular seats |
-
2004
- 2004-01-02 US US10/749,258 patent/US20050146190A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1602139A (en) * | 1926-10-05 | Headrest supporting and adjusting apparatus | ||
US3578384A (en) * | 1968-11-25 | 1971-05-11 | Mccord Corp | Adjustable headrest for vehicle seats |
US3698765A (en) * | 1971-02-16 | 1972-10-17 | American Hospital Supply Corp | Adjustable headrest for dental chairs |
US4128274A (en) * | 1976-03-05 | 1978-12-05 | U.S. Philips Corporation | Adjusting device for a section of a medical treatment apparatus or examining apparatus |
US4375902A (en) * | 1979-08-23 | 1983-03-08 | Royal Dental Manufacturing, Inc. | Locking headrest for dental chair |
US4483565A (en) * | 1981-06-22 | 1984-11-20 | Ikeda Bussan Co., Ltd. | Head rest stay retaining device |
US4563040A (en) * | 1982-10-15 | 1986-01-07 | Ralph Alster | Furniture assembly |
US4682817A (en) * | 1985-01-24 | 1987-07-28 | Marquette Tool & Die Company | Adjustable head restraint for vehicular seats |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090058163A1 (en) * | 2007-09-04 | 2009-03-05 | Lear Corporation | Height adjustable head restraint for a vehicle seat |
US7878597B2 (en) | 2007-09-04 | 2011-02-01 | Lear Corporation | Height adjustable head restraint for a vehicle seat |
US20090146479A1 (en) * | 2007-12-05 | 2009-06-11 | Lear Corporation | Seat assembly having an adjustable head restraint assembly |
US7871129B2 (en) | 2007-12-05 | 2011-01-18 | Lear Corporation | Seat assembly having an adjustable head restraint assembly |
US7758127B2 (en) * | 2008-01-23 | 2010-07-20 | Lear Corporation | Height adjustable head restraint for a vehicle seat |
US20090184556A1 (en) * | 2008-01-23 | 2009-07-23 | Lear Corporation | Height adjustable head restraint for a vehicle seat |
US7959233B2 (en) | 2008-12-19 | 2011-06-14 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with integral reinforcement structure |
US20100156162A1 (en) * | 2008-12-19 | 2010-06-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with integral reinforcement structure |
US8414053B2 (en) | 2008-12-19 | 2013-04-09 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with integral reinforcement structure |
US20100156152A1 (en) * | 2008-12-22 | 2010-06-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with an adjustable headrest |
US7954899B2 (en) | 2008-12-22 | 2011-06-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with an adjustable headrest |
US20100156163A1 (en) * | 2008-12-22 | 2010-06-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with low density frame |
US8157322B2 (en) | 2008-12-22 | 2012-04-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Seat back assembly with low density frame |
US20100270842A1 (en) * | 2009-04-22 | 2010-10-28 | Lear Corporation | Seat assembly having a movable head restraint |
US8303039B2 (en) | 2009-04-22 | 2012-11-06 | Lear Corporation | Seat assembly having a movable head restraint |
US20100283306A1 (en) * | 2009-05-06 | 2010-11-11 | Lear Corporation | Seat assembly and an adjustable head restraint assembly |
US8939512B2 (en) | 2009-05-06 | 2015-01-27 | Lear Corporation | Seat assembly and an adjustable head restraint assembly |
US20120025583A1 (en) * | 2010-07-30 | 2012-02-02 | Nihon Technica Co., Ltd. | Supporting structure of headrest bracket |
US8714653B2 (en) * | 2010-07-30 | 2014-05-06 | Niron Technica Co., Ltd. | Supporting structure of headrest bracket |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DENTAL COMPONENTS, INC., OREGON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TAATJES, STEVEN W.;REEL/FRAME:014973/0341 Effective date: 20031223 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |