Patent
Apparatus for hanging doors
| العنوان: | Apparatus for hanging doors |
|---|---|
| Patent Number: | 11214,968 |
| تاريخ النشر: | January 04, 2022 |
| Appl. No: | 16/303133 |
| Application Filed: | May 30, 2017 |
| مستخلص: | A door hanging apparatus includes a base for ground contact. A height adjustment bracket is located above the base and includes a lifting platform for supporting an underside of a door. A leadscrew assembly, including a leadscrew, interconnects the base and the height adjustment bracket. The leadscrew assembly operates to vary spacing between the base and the height adjustment bracket in response to rotation of the leadscrew. |
| Inventors: | Hayes, Robert Stanley (Withcott, AU) |
| Assignees: | Hayes, Robert Stanley (Withcott, AU) |
| Claim: | 1. A door hanging apparatus including: a ground contacting base; a height adjustment bracket located above the ground contacting base, the height adjustment bracket including a door lifting platform for supporting an underside of a door and a hole through which a leadscrew passes; a leadscrew assembly including the leadscrew, the leadscrew assembly interconnecting the ground contacting base and the height adjustment bracket arranged to vary spacing between the ground contacting base and the height adjustment bracket in response to rotation of the leadscrew of the leadscrew assembly; and at least two guides extending parallel with the leadscrew from the ground contacting base through respective one or more openings formed through the height adjustment bracket, each guide having a lower fixed end and an upper free end; whereby rotation of the leadscrew varies spacing of the height adjustment bracket from the ground contacting base, without pivoting of said height adjustment bracket relative to the ground contacting base, for acquiring a desired level of the door for attachment to a door frame; and an upper end of the leadscrew terminates in a coupling assembly; and the coupling assembly is attached to an extension shaft assembly, wherein the coupling assembly comprises a cushioning block with the cushioning block including a cylinder of synthetic rubber. |
| Claim: | 2. The apparatus according to claim 1 , wherein the leadscrew assembly includes a thrust collar fast with the base which receives a point of the leadscrew, wherein the thrust collar is fast with the ground contacting base, and wherein the leadscrew is free to rotate within the thrust collar. |
| Claim: | 3. The apparatus according to claim 2 , wherein the point of the leadscrew is capped using a friction reduction cap. |
| Claim: | 4. The apparatus according to claim 1 , wherein the door lifting platform for supporting the underside of a door is located below a point of coupling of the leadscrew assembly to the height adjustment bracket, whereby the leadscrew assembly is operable to bring the door lifting platform down to the ground contacting base. |
| Claim: | 5. The apparatus according to claim 1 , wherein the height adjustment bracket includes a door abutment face extending at an angle from the door lifting platform. |
| Claim: | 6. The apparatus according to claim 1 , wherein the leadscrew is threadedly engaged by a nut fast with the height adjustment bracket. |
| Claim: | 7. The apparatus according to claim 1 , wherein the ground contacting base is rectangular. |
| Claim: | 8. The apparatus according to claim 1 , wherein the at least two guides comprise first and second guideposts with the leadscrew assembly disposed between the first and second guideposts. |
| Claim: | 9. The apparatus according to claim 8 , wherein the first and second guideposts extend through first and second guide collars that are fast with the height adjustment bracket and coaxial with the first and second guideposts. |
| Claim: | 10. The apparatus according to claim 1 , including an operator handle for operation of the leadscrew assembly. |
| Claim: | 11. The apparatus according to claim 10 , wherein the operator handle is fast with an extension shaft, of the extension shaft assembly, that couples to the leadscrew assembly. |
| Claim: | 12. The apparatus according to claim 10 , wherein the operator handle comprises a disk fast with the leadscrew. |
| Claim: | 13. The apparatus according to claim 1 , wherein the extension shaft assembly includes a socket for driving by a power drill. |
| Claim: | 14. The apparatus according to claim 1 , wherein an extension shaft, of the extension shaft assembly, is coupled at an angle to the leadscrew by deforming the cushioning block. |
| Claim: | 15. The apparatus according to claim 11 , wherein the distance from the ground contacting base to the operator handle is at least 40 cm so that a worker is able to rotate the handle whilst standing. |
| Claim: | 16. The apparatus according to claim 1 , wherein the height adjustment bracket includes a top plate and a guard rail extending downwardly from a rear edge of the top plate. |
| Claim: | 17. The apparatus according to claim 1 , including one or more clamp support members extending from the ground contacting base towards the height adjustment bracket and extending along the length of the ground contacting base, for supporting a member to be clamped between the door lifting platform and the ground contacting base. |
| Patent References Cited: | 2598489 May 1952 Bayer 2663929 December 1953 Carpenter 2737709 March 1956 Lovelace 2739784 March 1956 Thompson et al. 4043536 August 1977 Almond 4278244 July 1981 Carter 4492014 January 1985 Alexander 4492369 January 1985 Pohl 4908925 March 1990 Johnson 6022008 February 2000 Bachman 6530740 March 2003 Kim 6722643 April 2004 Kurtz 8517342 August 2013 Dunca 8556280 October 2013 Latimer 9320357 April 2016 Tian RE47616 September 2019 Murphy 2006/0097235 May 2006 Wu 2007/0251018 November 2007 Razzaghi 2012/0193590 August 2012 Horwath et al. 103407929 November 2013 2225769 June 1990 |
| Other References: | Written Opinion for PCT/AU2017/050513 dated Jul. 26, 2017; 6 pps. cited by applicant International Search Report for PCT/AU2017/050513 dated Jul. 26, 2017; 4 pps. cited by applicant Office Action for Chinese Application No. 201780049074.6 dated Mar. 23, 2020; 9pps. cited by applicant |
| Assistant Examiner: | Neibaur, Robert F |
| Primary Examiner: | Wilson, Lee D |
| Attorney, Agent or Firm: | RowanTree Law Group, PLLC Fincham, Magdalena M. |
| رقم الانضمام: | edspgr.11214968 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |