US3709252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual hose reel
Assignee: Doosan Bobcat North America Inc
•
Filing: 1970-06-01
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Granted: 1973-01-09
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Expires: 1990-06-01
Abstract
Abstract A reel for maintaining in a taut condition two parallel hose operating under different and variable fluid conditions such as encountered in the operation of the upright of industrial lift trucks having a carriage with an attachment thereon. The reel has a pair of reel sections rotatably mounted on a hub having longitudinal fluid passages therein. Each reel section is driven in the direction to wind the hose by a coil spring connected at one end to the reel section and at the other end to the hub, and includes a coupling and passages connecting the hose of each section with one of the fluid passages in the hub. A bracket secured to one end of the hub mounts the reel on a supporting structure, and s plate mounted on the other end of the hub closes the passages in the hub, the plate and bracket being interchangeable to permit the reel to be mounted on either side of a lift truck upright without reversing the reel.
Inventors
- 👤 A Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:55
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/20; B66F9/205; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6918; Y10T137/6921
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
140 words
A reel for maintaining in a taut condition two parallel hose operating under different and variable fluid pressure conditions: comprising a shaft having two fluid passages therein extending inwardly into the hub from the same relative position with respect to opposite ends of the hub and from end to end of the shaft, two relatively rotatable reel sections mounted on said shaft and having an annular inner member with a hose coupling therein communicating with different fluid passages in said shaft, and a coil spring for each of said reel sections, each spring being connected at one end to said shaft and at the other end to the respective reel section, a detachable mounting bracket secured to one end of said shaft, and a passage closure means being secured to the other end thereof and being interchangeable with said bracket.
Claim 2
Dependent Claim
140 words
A reel for maintaining in a taut condition two parallel hose operating under different and variable fluid pressure conditions: comprising a shaft having two fluid passages therein extending inwardly into the hub from the same relative position with respect to opposite ends of the hub and from end to end of the shaft, two relatively rotatable reel sections mounted on said shaft and having an annular inner member with a hose coupling therein communicating with different fluid passages in said shaft, and a coil spring for each of said reel sections, each spring being connected at one end to said shaft and at the other end to the respective reel section, a detachable mounting bracket secured to one end of said shaft, and a passage closure means being secured to the other end thereof and being interchangeable with said bracket.
Claim 3
Dependent Claim
50 words
A reel as defined in claim 1 in which each of said reel sections includes spaced radially extending inner and outer flanges, and means connecting the coil spring for each of said reel sections to the inNer flange of the respective reel section and to the shaft between said sections.
Claim 4
Dependent Claim
27 words
A reel as defined in claim 2 in which the outer flanges contain an opening for receiving a tool to connect a hose to said hose coupling.
Claim 5
Dependent Claim
37 words
A reel as defined in claim 1 in which said mounting bracket is rigidly and removably secured to one end of said shaft and includes ports therein for connecting said passages with sources of fluid under pressure.
Claim 6
Dependent Claim
35 words
A reel as defined in claim 4 in which said closure means consists of a plate secured to the end of said shaft opposite said bracket for closing the respective ends of said fluid passages.
Claim 7
Dependent Claim
49 words
A reel as defined in claim 5 in which an annular groove enclosed by said reel sections surrounds said annular shaft and a port connects one of said passages with one of said grooves and another port connects the other of said passages with the other of said grooves.
Claim 8
Dependent Claim
32 words
A reel as defined in claim 5 in which said bracket and plate are interchangeable to permit the reel to be mounted on a supporting structure from either side of the reel
Claim 9
Dependent Claim
121 words
A reel for maintaining in a taut condition two parallel hose operating under different and variable fluid pressure conditions: comprising a shaft having two fluid passages extending from end to end of the shaft, two relatively rotatable reel sections mounted on said shaft and having an annular inner member with a hose coupling therein communicating with different fluid passages in said shaft, and a coil spring for each of said reel sections, each spring being connected at one end to said shaft and at the other end to the respective reel section, a detachable mounting bracket secured to one end of said shaft, and a passage closure means being secured to the other end thereof and being interchangeable with said bracket.
Claim 10
Dependent Claim
121 words
A reel for maintaining in a taut condition two parallel hose operating under different and variable fluid pressure conditions: comprising a shaft having two fluid passages extending from end to end of the shaft, two relatively rotatable reel sections mounted on said shaft and having an annular inner member with a hose coupling therein communicating with different fluid passages in said shaft, and a coil spring for each of said reel sections, each spring being connected at one end to said shaft and at the other end to the respective reel section, a detachable mounting bracket secured to one end of said shaft, and a passage closure means being secured to the other end thereof and being interchangeable with said bracket.
Claim 11
Dependent Claim
50 words
A reel as defined in claim 8 in which each of said reel sections includes spaced radially extending inner and outer flanges, and means connecting the coil spring for each of said reel sections to the inner flange of the respective reel section and to the shaft between said sections.
Claim 12
Dependent Claim
27 words
A reel as defined in claim 9 in which the outer flange contains an opening for receiving a tool to connect a hose to said hose coupling.
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |