Patent Publication Number: US-2021172224-A1

Title: Telescoping handle doorstop wedge

Description:
BACKGROUND OF THE INVENTION 
     This invention is related to a doorstop for maintaining a door in a fixed open position, and more precisely, related to an insertable and retractable wedge shaped doorstop which is portable and incorporates an extendable and retractable telescoping permanent handle which allows the doorstop wedge to be employed without the user having to bear the aggravation of repeatedly bending down or stooping over. 
     There are predominantly examples of doorstop inventions that require the operator to bend or stoop to the floor in order to insert, by hand, a doorstop for the purpose of restraining a hinged door in a desired open position. 
     The necessity exists for a telescoping handle doorstop wedge, the handle of which, can be lengthened and custom adjusted to any person&#39;s comfortable/practical operating height thus making it easy for the attached doorstop wedge to be inserted into or retracted from a location between the bottom edge of the door and the floor below. The non-stoop benefits are obvious for those persons who are disabled, infirmed, elderly or for those who cannot or do not prefer to bend or stoop to insert or release a doorstop wedge. 
     BRIEF SUMMARY OF THE INVENTION 
     Hinged doors, when standing open, have a natural inclination to inconveniently drift closed due to a variety of circumstances. Examples of such circumstances include door closing devices on door frames or hinges, gravity, drafts, wind, air conditioning circulation, atmospheric pressure-contrasts within a building and many others scenarios that could be listed. 
     It is therefore the primary objective of the invention to make easy the user&#39;s effort of propping open a hinged door, while the user remains standing in an upright position, and while the user is gripping the exactly extended, lightweight, telescoping handle with the doorstop wedge permanently attached to the opposite end from the handle-grip and then deploying the attached doorstop wedge to the floor and then proceeding to guide the attached doorstop wedge into the space between the bottom edge of the door and the floor without the necessity for the user to bend down or stoop over during the act of installation. 
     The telescoping length of the handle extends from a minimum of eight inches to a maximum of thirty-eight inches. 
     The invention works well with all types of floor surfaces, the likes of which include, but are not limited to tile, natural stone, metal, concrete, carpet, cork and vinyl. 
     The telescoping handle has a seven inch-long rubberized hand-grip which is wrapped around the largest diameter end of the telescoping handle. The doorstop wedge is securely attached to the smallest diameter end of the telescoping handle by a flexible primary coupling. 
     The telescoping handle includes several metal sections which nest together within the largest diameter end of the telescoping handle. Each telescoping section is cylindrical and of similar shape but they decrease in diametrical size as they progressively extend to the smaller diameter end of the telescoping handle. The sections nest inside each other which enables the telescoping handle to be shortened for storage or lengthened to the user&#39;s comfortable handheld height for doorstop wedge implementation. 
     The flexible primary coupling joins the doorstop wedge to the smallest diameter end of the telescoping handle. The flexible primary coupling has a center wheel that rolls forward and backward on an axle bolt which is a threaded metric stainless steel phillips pan machine screw, insuring that the forward and backward angle of the permanently attached doorstop wedge can be adjusted by the user, at any time, as much as 45 degrees in either the forward or backward direction, thus allowing the user of the doorstop wedge to insert it between the bottom door edge and the floor, on an approach of varying angles, thus customizing the doorstop wedge positioning. The flexible primary coupling is permanently attached to the smallest diameter end of the telescoping handle. The center wheel is nested in-between the flexible primary coupling&#39;s dual hub arms and is supported and secured by the axle bolt. The flexible primary coupling incorporates an anchor bolt head and its anchor bolt threaded member projecting from the flexible primary coupling&#39;s top-cap. The doorstop wedge is permanently connected to the telescoping handle via the anchor bolt threaded member. A hole exists through the rear top surface of the door stop wedge, and at the hole site, a threaded T-Nut is imbedded into the underside, rear, top surface of the doorstop wedge. The imbedded threaded T-nut allows for connection of the doorstop wedge to the anchor bolt threaded member and ultimately connects together the entire Telescoping handle doorstop wedge invention. 
     The doorstop wedge is made of long lasting, durable and strong but flexible rubber. The doorstop wedge is mostly hollow and has a flat base and flat non-slip-surface on its external sidewall bottom edges. The doorstop wedge incorporates three non-slip-surface internal reinforcing ribs positioned perpendicularly to the external sidewalls within its mostly hollow interior. The inclined external top surface of the doorstop wedge is six inches long and two &amp; three-fourths of an inch wide and it inclines from a low point of one-eighth inch to a high point of two inches. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
       The accompanying drawings help to understand the invention&#39;s features which have been described in the claims. The following descriptions are numbered and relate to the same numbered drawings that follow. 
         FIG. 1  is a three dimensional side view of the Telescoping handle doorstop wedge invention. 
         FIG. 2  is a three dimensional enlarged exploded view of the invention&#39;s flexible primary coupling. 
         FIG. 3  is a three dimensional view from the underside of the invention&#39;s rubber doorstop wedge. 
         FIG. 4  is a three dimensional side view of the invention with its telescoping handle in a fully collapsed and tilted (storage) position 
     
    
    
       
     
       
         
           
               
            
               
                   
               
               
                 CROSS-REFERENCE TO RELATED APPLICATIONS 
               
            
           
           
               
               
               
               
               
            
               
                 Publication 
                 Priority 
                 Publication 
                   
                   
               
               
                 Number 
                 Date 
                 Date 
                 Assignee 
                 Title 
               
               
                   
               
               
                 U.S. Pat. No. 6,557,915B1 
                 2000 Oct. 16 
                 2003 May 6 
                 Duff&#39;s Door Stopper 
                 Portable doorstop 
               
               
                   
                   
                   
                   
                 with ergonomic 
               
               
                   
                   
                   
                   
                 advantages 
               
               
                 U.S. Pat. No. 5,217,269A 
                 1992 Sep. 8 
                 1993 Jun. 8 
                 Wiltberger Charles M 
                 Portable handled door 
               
               
                   
                   
                   
                   
                 stop 
               
               
                 U.S. Pat. No. 6,003,911A 
                 1996 May 31 
                 1999 Dec. 21 
                 Michael Robert C. 
                 Door stop 
               
               
                 US20040256866A1 
                 2003 Jun. 17 
                 2004 Dec. 23 
                 Deming Robert F. 
                 Straddling doorstop 
               
               
                   
                   
                   
                   
                 with upright 
               
               
                 U.S. Pat. No. 7,976,080B1 
                 2007 Apr. 6 
                 2011 Jul. 12 
                 Duff Robert O 
                 Doorstop with 
               
               
                   
                   
                   
                   
                 releasably securable 
               
               
                   
                   
                   
                   
                 handle 
               
               
                 US20130318882A1 
                 2011 Feb. 8 
                 2013 Dec. 5 
                 S &amp; G Global Services 
                 Door Assistant 
               
               
                   
                   
                   
                 Pty Limited 
               
               
                 U.S. Pat. No. 4,142,752A 
                 1978 Feb. 21 
                 1979 Mar. 6 
                 Chilton James O 
                 Burglar entry stop 
               
               
                   
                   
                   
                   
                 device 
               
               
                 U.S. Pat. No. 1,939,402A 
                 1932 Sep. 6 
                 1933 Dec. 12 
                 Byron W Moser 
                 Doorstop 
               
               
                 US20150054296A1 
                 2013 Aug. 22 
                 2015 Feb. 26 
                 Kevin Kaplafka, JR. 
                 Portable access 
               
               
                   
                   
                   
                   
                 prevention device 
               
               
                 U.S. Pat. No. 4,494,784A 
                 1981 Dec. 7 
                 1985 Jan. 22 
                 Haynes Harvey H 
                 Door-stop for the 
               
               
                   
                   
                   
                   
                 handicapped 
               
               
                   
               
            
           
         
       
     
     DETAILED DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a three dimensional side view of the Telescoping handle doorstop wedge invention where. 
     The telescoping handle extends from a minimum of eight inches to a maximum of thirty eight inches. 
     The invention works well with all types of floor surfaces, the likes of which include but are not limited to tile, natural stone, metal, concrete, carpet, cork and vinyl. 
     The telescoping handle  1  has a seven inch-long rubberized hand-grip  2  which is wrapped around the largest diameter end of the telescoping handle  1 . The doorstop wedge  3  is securely attached to the smallest diameter end  18  of the telescoping handle by a flexible primary coupling  4 . 
     The telescoping handle  1  includes several metal sections  5  which nest together within the largest diameter end of the telescoping handle  1 . Each telescoping section is cylindrical and of similar shape but they decrease in diametrical size as they progressively extend to the smaller diameter end  18  of the telescoping handle  1 . The sections nest inside each other which enables the telescoping handle  1  to be shortened for storage or lengthened to the user&#39;s comfortable handheld height for doorstop wedge  3  deployment. 
     The flexible primary coupling  4  joins the doorstop wedge  3  to the smallest diameter end  18  of the telescoping handle  1 . The flexible primary coupling  4  has a center wheel  FIG. 2  that rolls forward and backward on an axle bolt  FIG. 2  which is a threaded metric stainless steel phillips pan machine screw  FIG. 2  insuring that the forward and backward angle of the permanently attached doorstop wedge  3  can be adjusted by the user, at any time, as much as 45 degrees  FIG. 1  in either the forward or backward direction, thus allowing the user of the doorstop wedge  3  to insert it between the bottom door-edge and the floor, on an approach of varying angles, thus customizing the doorstop wedge  3  positioning under the bottom door-edge. The flexible primary coupling  4  is permanently attached to the smallest diameter end  18  of the telescoping handle  1 . The center wheel  FIG. 2  is nested in-between the flexible primary coupling&#39;s  4  dual hub arms  FIG. 2  and is supported and secured by the axle bolt  FIG. 2 . The flexible primary coupling  4  incorporates an anchor bolt head  FIG. 2  and an anchor bolt threaded member  FIG. 2  projecting from the flexible primary coupling&#39;s  4  top-cap  FIG. 2 . The doorstop wedge  3  is permanently connected to the telescoping handle  1  via the anchor bolt threaded member  FIG. 2 . A hole exists through the rear top surface of the door stop wedge  3 , and at the hole site, a threaded T-Nut is imbedded into and underside, rear, top surface of the doorstop wedge  3 . The imbedded threaded T-nut allows for connection of the doorstop wedge  3  to the anchor bolt threaded member  FIG. 2  and ultimately connects together the entire Telescoping handle doorstop wedge invention 
     The doorstop wedge  3  is made of long lasting, durable and strong but flexible rubber. The doorstop wedge  3  is mostly hollow and has a flat base  13  and a flat non-slip-surface on its external sidewall  14  bottom edges  15 . The doorstop wedge  3  incorporates three non-slip-surface internal reinforcing ribs  FIG. 3  which are positioned perpendicularly to the external sidewalls, within its mostly hollow interior. The inclined external top surface  17  of the doorstop wedge  3  is six inches long and two &amp; three-fourths of an inch wide and it extends from a low point of one-eighth inch to a high point of two inches. 
       FIG. 2  is a three dimensional exploded view of the invention&#39;s flexible primary coupling. 
     The flexible primary coupling  4  joins the doorstop wedge  FIG. 1  to the smallest diameter end of the telescoping handle  FIG. 1 . The flexible primary coupling  4  has a center wheel  6  that rolls forward and backward on an axle bolt  7  and the attached axel bolt, which is a threaded metric stainless steel Phillips pan machine screw  8 , insures that the forward and backward angle of the permanently attached doorstop wedge  FIG. 1  can be adjusted by the user, at any time, as much as 45 degrees  FIG. 1  in either the forward or backward direction, thus allowing the user of the doorstop wedge  FIG. 1  to insert it in-between the bottom door edge and the floor, on an approach of varying angles, thus customizing the doorstop wedge  FIG. 1  positioning. The flexible primary coupling  4  is permanently attached to the smallest diameter end  FIG. 1  of the telescoping handle  FIG. 1 . The center wheel  6  is nested in between the flexible primary coupling&#39;s  4  dual hub arms  9  and is supported and secured by the axle bolt  7 . The flexible primary coupling  4  incorporates an anchor bolt head  10  and an anchor bolt threaded member  11  projecting from the flexible primary coupling&#39;s  4  top-cap  12 . The doorstop wedge  FIG. 1  is permanently connected to the telescoping handle  1  via the anchor bolt threaded member  11 . A hole exists through the rear top surface of the door stop wedge  FIG. 1 , and at the hole site, a threaded T-Nut is imbedded into and underside, rear, top surface of the doorstop wedge  FIG. 1 . The imbedded threaded T-nut allows for connection of the doorstop wedge  FIG. 1  to the anchor bolt threaded member  11  and ultimately connects together the entire Telescoping handle doorstop wedge invention 
       FIG. 3  is a three dimensional view from the underside of the invention&#39;s doorstop wedge. 
     The doorstop wedge  3  is made of long lasting, durable and strong but flexible rubber. The doorstop wedge  3  is mostly hollow and has a flat base  13  and flat non-slip-surface on its external sidewall bottom edges  14 . The doorstop wedge  3  incorporates three non-slip-surface internal reinforcing ribs  16 , which are positioned perpendicularly to the external sidewalls, within its mostly hollow interior. The inclined external top surface  17  of the doorstop wedge  3  is six inches long and two &amp; three-fourths of an inch wide and it inclines from a low point of one-eighth inch to a high point of two inches. 
       FIG. 4  is a three dimensional side view of the invention with its telescoping handle in a fully collapsed and tilted (storage) position. 
     The flexible primary coupling  4  joins the doorstop wedge  3  to the smallest diameter end  18  of the telescoping handle  FIG. 1 . The flexible primary coupling  4  has a center wheel  FIG. 2  that rolls forward and backward on an axle bolt  FIG. 2  that is a threaded metric stainless steel Phillips pan machine screw  FIG. 2  which insures that the forward and backward angle of the permanently attached doorstop wedge  3  can be adjusted by the user, at any time, as much as 45 degrees  FIG. 1  in either the forward or backward direction (180 degrees maximum)  FIG. 4 , thus allowing the user of the doorstop wedge  3  to insert it between the bottom door edge and the floor, on an approach of varying angles, thus customizing the doorstop wedge  3  positioning, or allowing the user to tilt the telescoping handle forward into a storage position with the telescoping handle fully collapsed or lengthened to the user&#39;s desire height.