Stretcher with gear mechanism for adjustable height

(54) STRETCHER WITH GEAR MECHANISM FOR ADJUSTABLE HEIGHT

(75) Inventors: Byung Ki Choi, Mapo-Gu,

Shinjung-Dong, Seo-Gang LG A, 104-1101, Seoul (KR) 0276356-4607; Michael Min, San Francisco, CA (US)

(73) Assignee: Byung Ki Choi, Danville, CA (US)

( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

(21) Appl. No.: 10/899,676

(22) Filed: Jul. 26, 2004

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Prior Publication Data

US 2006/0016008 Al Jan. 26, 2006

Int. CI.

A61G 1/02 (2006.01)

U.S. CI 5/611; 5/86.1; 296/20

Field of Classification Search 5/611,

5/610, 86.1, 81.1 R, 11, 625, 627; 296/20;

280/43.16; 16/44,45 See application file for complete search history.

References Cited

U.S. PATENT DOCUMENTS

1,273,214 A * 7/1918 Gleason 280/43.16

2,599,717 A 6/1952 Menzies 5/510

2,985.891 A * 5/1961 Hutt 5/11

3,304.116 A 2/1967 Stryker 296/20

3,305,876 A * 2/1967 Hutt 5/11

3,644,944 A 2/1972 Bourgraf et al 5/610

3,802,002 A * 4/1974 lonas 5/611

4,023,849 A * 5/1977 Bethlen 296/20

4,097.941 A 7/1978 Merkel 295/20

4,164,355 A 8/1979 Eaton et al 296/20

4,175,783 A 11/1979 Pioth 296/20

4.319,381 A * 3/1982 Rodaway 16/44

4.365,801 A * 12/1982 Medina et al 482/34

4/189,449 A 12/1984 Failor et al 5/83.1

4,579,381 A 4/1986 Williams 296/20

4,584,989 A 4/1986 Stith 600/18

4,667,354 A 5/1987 Carey, Jr. et al 5/614

4.669,136 A 6/1987 Waters et al 5/601

4,688,279 A 8/1987 Vance 5/626

4,723,808 A 2/1988 Hines 296/20

4,767,148 A 8/1988 Ferneau et al 296/20

4,771,785 A * 9/1988 Duer 600/415

4.927,127 A * 5/1990 Lock 5/611

4.987,623 A 1/1991 Stryker et al 5/86.1

5,048,133 A 9/1991 Iura et al 5/81.1 C

5,069,465 A 12/1991 Stryker et al 280/47.371

5,165,141 A * 11/1992 Soltani 16/44

5,172,442 A 12/1992 Bartley et al 5/611

5.375,277 A 12/1994 Can et al 5/625

5,432,966 A 7/1995 Berta et al 5/611

5,435,027 A 7/1995 Bourgiaf et al 5/611

5,509,159 A 4/1996 Du-Bois 5/627

5,522,100 A 6/1996 Schilling et al 5/86.1

5.537,700 A 7/1996 Way et al 5/611

5.575,026 A 11/1996 Way et al 5/617

5,806,111 A 9/1998 Heimbrock et al 5/86.1

(Continued)

Primary Examiner—Robert G. Santos

(74) Attorney, Agent, or Firm—Hogan & Hartson, L.L.R

22

U.S. PATENT DOCUMENTS

5,913,559 A 6/1999 Sexton et al 296/20

5,987,671 A 11/1999 Heimbrock et al 5/600

5,996,149 A 12/1999 Heimbrock et al 5/601

6,016,580 A 1/2000 Heimbrock et al 5/86.1

6,125,485 A 10/2000 Way et al 5/600

6,154,899 A 12/2000 Brooke et al 5/81.1 R

6,203,085 Bl 3/2001 Ferris 296/20

6,219,864 Bl 4/2001 Ellis et al 5/600

6,240,579 Bl 6/2001 Hanson et al 5/86.1

6,256,812 Bl 7/2001 Bartow et al 5/86.1

6,276,010 Bl 8/2001 Way et al 5/611

6,357,077 Bl * 3/2002 Jones et al 16/44

6,389,623 Bl 5/2002 Flynn et al 5/611

6,405,393 Bl * 6/2002 Megown 5/611

6,421,854 Bl 7/2002 Heimbrock 5/610

6,427,263 Bl 8/2002 Lindell 5/86.1

6,435,538 Bl 8/2002 Ellis et al 280/650

6,499,163 Bl 12/2002 Stensby 5/618

6,505,359 Bl 1/2003 Heimbrock et al 5/86.1

6,526,611 Bl 3/2003 Flynn et al 5/611

6,598^247 Bl 7/2003 Heimbrock et al 5/86.1

6,651,280 Bl * 11/2003 Blevins 5/611

2001/0044965 Al * 11/2001 Blevins 5/611

2004/0107534 Al * 6/2004 Hsiao 16/44

* cited by examiner