EP 0441779 A4 19911030 - HEATED AND COOLED BOOT AND SUIT WITH FORCED AIR CIRCULATION

Title (en)

HEATED AND COOLED BOOT AND SUIT WITH FORCED AIR CIRCULATION

Publication

EP 0441779 A4 19911030 (EN)

Application

EP 89904493 A 19881101

Priority

CA 582452 A 19881107
US 17741088 A 19880404
US 8803881 W 19881101

Abstract (en)

[origin: WO8909552A1] A boot (10) has an internal forced air circulation system and an inflatable lining (64). The boot can also be used to circulate air through protective clothing and can have a footwarmer mechanism. In one embodiment, the footwarmer mechanism includes an electrical resistance heater (394), an electrical generator (64), a mechanical transducer (60) to translate vertical movements of the wearer's heel into unidirectional rotational movement of a flywheel (123), and a gear box (62) mechanically coupling the flywheel to the electrical generator. Optional features include a rechargeable storage battery (65) and a radio transmitter (67) for generating a signal useful for locating the wearer. In another embodiment (326, 328) the footwarmer mechanism can be a pair of sole plates which are in sliding frictional engagement and generate frictional heat.

IPC 1-7

A43B 7/04; A43B 7/06; A43B 5/04; H05B 3/00

IPC 8 full level

A41D 19/00 (2006.01); A42B 3/12 (2006.01); A43B 3/35 (2022.01); A43B 5/04 (2006.01); A43B 13/20 (2006.01); A43B 17/03 (2006.01)

CPC (source: EP US)

A42B 3/121 (2013.01 - EP); A43B 1/0018 (2013.01 - EP); A43B 1/0054 (2013.01 - EP); A43B 3/34 (2022.01 - EP); A43B 3/35 (2022.01 - EP US); A43B 3/42 (2022.01 - US); A43B 5/0407 (2013.01 - EP); A43B 13/203 (2013.01 - EP); A43B 13/206 (2013.01 - EP); A43B 17/035 (2013.01 - EP)

Citation (search report)

[Y] FR 1579904 A 19690829
[X] DE 1108108 B 19610531 - HERMANN BRUENER DR MED
[Y] FR 1250059 A 19610106
[A] US 4674199 A 19870623 - LAKIC NIKOLA [US]
[A] US 3000616 A 19610919 - SPANGLER JAMES O
See also references of WO 8909552A1

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 8909552 A1 19891019; AT E139886 T1 19960715; CA 1341244 C 20010605; DE 3855396 D1 19960808; DE 3855396 T2 19970220; EP 0441779 A1 19910821; EP 0441779 A4 19911030; EP 0441779 B1 19960703

DOCDB simple family (application)

US 8803881 W 19881101; AT 89904493 T 19881101; CA 582452 A 19881107; DE 3855396 T 19881101; EP 89904493 A 19881101