US4688643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firefighting back tank and pump
Assignee: FIREFLEX Manufacturing Ltd
•
Filing: 1986-04-11
•
Granted: 1987-08-25
•
Expires: 2006-04-11
Abstract
Abstract A novel portable flexible water tank and pump which can be carried on a firefighter's back and used for fighting forest fires. The water carrying backpack and water pump combination comprises: (a) a flexible hollow waterproof water container; (b) harness means attached to the water container suitable for securing the water container to the back of a human being; (c) means attached to the water container for filling the water container; (d) hand operated water pumping means; (e) means for connecting the hand operated water pumping means with the water container in order to permit water from the interior of the water container to be delivered to the hand operated water pump; and (f) perspiration ventilation means located on the side of the water container which rests against the back of the human being.
Inventors
- 👤 Stanley D. Carter
- 👤 Blayney Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:02
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/0403; B05B9/0426; A; A62; A62C; A62C15/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
145 words
A water carrying backback and water pump combination useful in fighting fires comprising: (a) a flexible collapsible hollow waterproof water container; (b) harness means attached to the flexible water container suitable for securing the water container to the back of a human being; (c) means for filling the water container; (d) hand operated water pumping means; (e) means for connecting the hand operated water pumping means with the water container in order to permit water from the interior of the water container to be delivered to the hand operated water pump; and (f) perspiration ventilation means located on the side of the water container which rests against the back of the human being, said ventilation means being an indentation formed by internally sealing the back-facing side of the water container to the opposite wall of the water container along a portion of its surface area.
Claim 2
Dependent Claim
145 words
A water carrying backback and water pump combination useful in fighting fires comprising: (a) a flexible collapsible hollow waterproof water container; (b) harness means attached to the flexible water container suitable for securing the water container to the back of a human being; (c) means for filling the water container; (d) hand operated water pumping means; (e) means for connecting the hand operated water pumping means with the water container in order to permit water from the interior of the water container to be delivered to the hand operated water pump; and (f) perspiration ventilation means located on the side of the water container which rests against the back of the human being, said ventilation means being an indentation formed by internally sealing the back-facing side of the water container to the opposite wall of the water container along a portion of its surface area.
Claim 3
Dependent Claim
28 words
An apparatus as defined in claim 1 wherein the water container includes heat insulation means located externally on a portion of the back-facing side of the water container.
Claim 4
Dependent Claim
63 words
An apparatus as defined in claim 2 wherein the heat insulation means comprises a horizontally disposed flexible waterproof heat insulating means which extends across a substantial portion of the back-facing side of the water container and rests against and protects against heat loss from the kidney area of a human being when the backpack is harnessed to the back of a human being.
Claim 5
Dependent Claim
19 words
An apparatus as defined in claim 1 wherein two parallel vertically extending indentation are formed in the water container.
Claim 6
Dependent Claim
35 words
An apparatus as defined in claim 1 wherein the water container is constructed generally to have the shape of an inverted "T", both the arms and stem of the "T" being capable of holding water.
Claim 7
Dependent Claim
65 words
An apparatus as defined in claim 1 wherein the water pumping means is of a cylindrical construction with a nozzle and a water receiving hose at one end, is operated by pushing a rod and piston connected to a handle in the direction of the end carrying the nozzle, and the water pumping means includes a pair of disk-spring valves, oppositely oriented to one another.
Claim 8
Dependent Claim
30 words
An apparatus as defined in claim 6 wherein the cylindrical water pumping means has a body which is constructed of a tubular non-corrodible liner and an exterior impact resistance jacket.
Claim 9
Dependent Claim
30 words
An apparatus as defined in claim 1 wherein the water container filling means includes a screen for filtering solid debris from water poured into the interior of the water container.
References Cited (Backward Citations)
US636375A
Cited
CH71634A
Cited
US1279992A
Cited
US1753073A
Cited
US1902548A
Cited
US1875992A
Cited
US1913006A
Cited
US2192256A
Cited
US2606701A
Cited
FR1197163A
Cited
US3095123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |