Patent US5813088A successfully refreshed from Google Patents.
US5813088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backpack blower
Assignee: JENN FENG INDUSTRIAL Co Ltd
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Filing: 1997-07-23
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Granted: 1998-09-29
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Expires: 2017-07-23
Abstract
Abstract A backpack blower includes a control handle carried by a flexible arm which permits the control handle to be positioned at any location in a three dimensional position range. User comfort and controllability are enhanced.
Inventors
- 👤 Jeffrey F. Wagner
- 👤 Kerry D. Roosmalen
- 👤 Darren K. Riley
- 👤 Michael S. Despain
- 👤 Gary T. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:19
CPC Classifications
F; F16; F16M; F16M13/00; F16M13/04; A; A01; A01G; A01G20/00; A01G20/40; A01G20/43; A01G20/47; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; F16M11/00; F16M11/20; F16M11/24; F16M11/40; F16M2200/00; F16M2200/06; F16M2200/065
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
39 words
A backpack blower, comprising: a motorized blower unit; and a control handle mounted on a flexible arm and operable to control the motorized blower unit, wherein the flexible arm retains its shape upon being moved to a desired position.
Claim 2
Dependent Claim
39 words
A backpack blower, comprising: a motorized blower unit; and a control handle mounted on a flexible arm and operable to control the motorized blower unit, wherein the flexible arm retains its shape upon being moved to a desired position.
Claim 3
Dependent Claim
21 words
The backpack blower of claim 1, wherein the flexible arm comprises a sleeve and hollow flexible tubing disposed in the sleeve.
Claim 4
Dependent Claim
25 words
The backpack blower of claim 1, further including control cables inside the flexible tubing and coupled between the motorized blower unit and the control handle.
Claim 5
Dependent Claim
11 words
The backpack blower of claim 1, wherein the sleeve is corrugated.
Claim 6
Dependent Claim
13 words
The backpack blower of claim 1, wherein the sleeve is fabricated of plastic.
Claim 7
Dependent Claim
14 words
The backpack blower of claim 1, wherein the flexible tubing is fabricated of metal.
Claim 8
Dependent Claim
69 words
A backpack blower, comprising: a frame adapted to be carried on a back of a user; a motorized blower unit mounted on the frame; a flexible arm having a proximal end coupled to at least one of the frame and the blower unit, the flexible arm comprising hollow metal tubing; and a control handle mounted on a distal end of the flexible arm and including a user control element.
Claim 9
Dependent Claim
69 words
A backpack blower, comprising: a frame adapted to be carried on a back of a user; a motorized blower unit mounted on the frame; a flexible arm having a proximal end coupled to at least one of the frame and the blower unit, the flexible arm comprising hollow metal tubing; and a control handle mounted on a distal end of the flexible arm and including a user control element.
Claim 10
Dependent Claim
16 words
The backpack blower of claim 7, wherein a control cable extends through the hollow metal tubing.
Claim 11
Dependent Claim
17 words
The backpack blower of claim 8, further including a flexible plastic sleeve surrounding the hollow metal tubing.
Claim 12
Dependent Claim
12 words
The backpack blower of claim 9, wherein the plastic sleeve is corrugated.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-28 | 2002-03-30 | 2002-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-28 | 2006-03-30 | 2006-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-28 | 2010-03-30 | 2010-09-29 | $7700.00 | Window Closed / Lapsed |