IP Library Granted Patent US 12,365,380
Granted Patent B2
US 12,365,380 · App. 18/662,893 · Granted Jul 22, 2025

Foldable door cart

Inventor: Brian Goldwitz (Waterbury, CT)
B62B3/022B62B3/108B62B2205/26
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Quick Facts
Patent No.
US 12,365,380
App. No.
18/662,893
Granted
Jul 22, 2025
Kind
B2
Abstract

The current invention is a foldable door frame holder cart with a rounded support bar in the middle of a base holding a door frame. The base has a plurality of wheels in the preferred embodiment. The device has a plurality of doors support bars and adjustable door locking bars connected to the support bars which the hinges of the door frame fit into. The adjustable door locking bars are connected to a thumb-turn bracket which can be used to better secure the door frame to the device. The device without the door with door frame guides that extend up from the top of the base. The cart can carry multiple doors and can fold into a smaller shape for storage.

Claims (27)

1. A foldable door cart comprising:

a base, wherein said base is comprised of two halves, a left half and right half;

a plurality of wheels that extend from a bottom of said base;

a support bar that extends from said base;

a plurality of door secure bars;

a plurality of door support bars connected to the support bar of the base;

a plurality of adjustable door locking bars connected to the support bar of the base;

wherein hinges of a door frame fit into the door support bars and adjustable door locking bars;

wherein the adjustable door locking bars are connected to the support bar by a thumb-turn bracket, said thumb-turn bracket is used to secure the door frame to the cart;

wherein the door support bars extend outwards at an angle away from the support bar, with a prong at each of two distal ends of each door support bar, wherein each prong extends upwards relative to the base.

2. The foldable door cart according to claim 1 , further comprising: wherein one prong is shorter than the other.

3. The foldable door cart according to claim 1 , further comprising: wherein the door is placed on each of the prongs.

4. The foldable door cart according to claim 3 , further comprising: wherein a respective door locking bar is moved down the support bar locking the door.

5. The foldable door cart, according to claim 1 , further comprising: extension bars extending perpendicularly from the support bar.

6. The foldable door cart, according to claim 1 , further comprising: tables extending perpendicularly from the support bar.

7. The foldable door cart, according to claim 6 , further comprising: wherein the tables are flat.

8. The foldable door cart, according to claim 6 , further comprising: wherein the tables are bin-shaped.

9. A foldable door cart comprising:

a base, wherein said base is comprised of two halves, a left half and right half;

a plurality of wheels that extend from a bottom of said base,

a support bar that extends from said base;

a plurality of door support bars connected to the support bar of said base,

wherein the door support bars extend outwards at an angle away from the support bar, with a prong at each of two distal ends of each door support bar, wherein each prong extends upwards relative to the base, wherein one prong is shorter than the other;

a plurality of adjustable door locking bars connected to the support bar of the base,

wherein hinges of a door frame fit into the door support bars and adjustable door locking bars;

wherein the adjustable door locking bars are connected to the support bar by a thumb-turn bracket which is used to secure the door frame when the door frame is placed on each of the prongs of the door support bars;

wherein a respective door locking bar is moved down the support bar by using the thumb-turn bracket and thereby locking the door onto the cart.

Continuity (2)
Continuation In Part 17952184 · Sep 23, 2022
Related Publication 20240294199A1 · Sep 5, 2024
References Cited (42)
US 2418586A · Jenkins · 1947 [cited by examiner]
US 2604210A · Boone · 1952 [cited by examiner]
US 2967627A · Vinson · 1961 [cited by examiner]
US 3104890A · Hill · 1963 [cited by examiner]
US 3643935A · Bell · 1972 [cited by examiner]
US 3804432A · Lehrman · 1974 [cited by examiner]
US 4050671A · Coleman · 1977 [cited by examiner]
US 4505495A · Foss · 1985 [cited by examiner]
US 4810151A · Shern · 1989 [cited by examiner]
US 4813701A · Balland · 1989 [cited by examiner]
US 4865346A · Carlile · 1989 [cited by examiner]
US 4921270A · Schoberg · 1990 [cited by examiner]
US 4932639A · Fjellstrom · 1990 [cited by examiner]
US 4978132A · Wilson · 1990 [cited by examiner]
US D325505S · Hernandez · 1992 [cited by examiner]
US 5135205A · Bedard · 1992 [cited by examiner]
US 5244221A · Ward · 1993 [cited by examiner]
US 5257892A · Branch · 1993 [cited by examiner]
US 6024348A · Ventura · 2000 [cited by examiner]
US 6231034B1 · Walker · 2001 [cited by examiner]
US 6505844B2 · Hallman · 2003 [cited by examiner]
US 6811038B1 · Sanderson · 2004 [cited by examiner]
US 7008165B1 · Grimes · 2006 [cited by examiner]
US 7008166B1 · Grimes · 2006 [cited by examiner]
US 7175168B2 · Hardaker · 2007 [cited by examiner]
US 7419170B2 · Krizan · 2008 [cited by examiner]
US 7780389B1 · Young · 2010 [cited by examiner]
US 7784802B2 · White · 2010 [cited by examiner]
US 8088984B2 · Meyer · 2012 [cited by examiner]
US 9371655B1 · Davis · 2016 [cited by examiner]
US 10160467B2 · Josephsen · 2018 [cited by examiner]
US 10376045B1 · Poudrier · 2019 [cited by examiner]
US 10981588B1 · Poudrier · 2021 [cited by examiner]
US 11097759B1 · Poudrier · 2021 [cited by examiner]
US 11172761B2 · Van Zile, Jr. · 2021 [cited by examiner]
US 11192566B2 · Ceja · 2021 [cited by examiner]
US 11390309B2 · Candelario · 2022 [cited by examiner]
US 11654947B1 · Poudrier · 2023 [cited by examiner]
US 11718334B1 · Yao · 2023 [cited by examiner]
US 12172875B2 · McCormick · 2024 [cited by examiner]
US 12227217B1 · Esau · 2025 [cited by examiner]
US 20190331291A1 · Poudrier · 2019 [cited by examiner]
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