US3791235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split intermediate housing section for multi-rotor rotary mechanism
Assignee: John Deere Technologies International Inc
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Filing: 1973-04-19
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Granted: 1974-02-12
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Expires: 1993-04-19
Abstract
Abstract The improved split intermediate housing section comprises a plurality of fastening assemblies disposed between the two parts of the housing section and radially inward of the outer periphery of the housing section. Each assembly has a fixed camming surface on one part of the housing section and an adjustable camming surface on the other part of the housing section disposed to abut the fixed camming surface. A bolt coacts with the adjustable camming surface to move the latter relative to the fixed camming surface and develop a reactive, axially directed force drawing the two parts of the housing section together. Access port means is provided in the housing section for each fastening assembly to permit a tool to extend from a point exteriorly of the housing section, in the housing section to engagement with the bolt for rotation.
Inventors
- 👤 W Hermes
- 👤 G Woodier
- 👤 C Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/10; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
121 words
A two-piece intermediate housing section for the housing of a multi-rotor rotary mechanism in which each rotor is supported for rotation on a crankshaft, the intermediate housing section comprising: a. first and second housing parts having juxtaposed mating surfaces disposed in abutment and extending in a plane substantially normal to the longitudinal axis of the crankshaft; b. the first and second housing parts being constructed and arranged to form a hub portion surrounding said crankshaft and to define a cavity therebetween extending from adjacent the outer peripheries of the housing parts to adjacent the hub portion; and c. a plurality of fastening assemblies disposed in said cavity to secure said mating surfaces of said first and second housing parts in abutment.
Claim 2
Dependent Claim
121 words
A two-piece intermediate housing section for the housing of a multi-rotor rotary mechanism in which each rotor is supported for rotation on a crankshaft, the intermediate housing section comprising: a. first and second housing parts having juxtaposed mating surfaces disposed in abutment and extending in a plane substantially normal to the longitudinal axis of the crankshaft; b. the first and second housing parts being constructed and arranged to form a hub portion surrounding said crankshaft and to define a cavity therebetween extending from adjacent the outer peripheries of the housing parts to adjacent the hub portion; and c. a plurality of fastening assemblies disposed in said cavity to secure said mating surfaces of said first and second housing parts in abutment.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1 wherein access port means is provided in the housing section in communication with said cavity to permit passage of a tool, to engage said fastening assemblies.
Claim 4
Dependent Claim
53 words
The apparatus of claim 1 wherein each of said plurality of fastening assemblies comprises a first means associated with the first housing part and a second means associated with the second housing part, the first and second means being adjustable relative to each other so as to draw the two housing parts together.
Claim 5
Dependent Claim
70 words
The apparatus of claim 1 wherein each of said fastening assemblies comprises two camming surfaces, each one being associated with a housing part and disposed to abut the other surface, and securing means for moving one camming surface relative to the other camming surface and thereby provide a force directed substantially parallel to the longitudinal axis of the crankshaft to draw the housing parts and their mating surfaces into abutment.
Claim 6
Dependent Claim
12 words
The apparatus of claim 4 wherein said securing means is a bolt.
Claim 7
Dependent Claim
35 words
The apparatus of claim 4 wherein one of said camming surfaces is a member bolted to the first housing part and the other camming surface is on a member connected to the second housing part.
Claim 8
Dependent Claim
82 words
The apparatus of claim 3 wherein said first means is a U-shaped bracket having a first camming surface, said second means is a movable wedge element having a second camming surface substantially complementary to said first camming surface and wherein a securing means is connected to said wedge element to move the latter relative to said U-shaped bracket and thereby effecting through said first and second camming surfaces a force directed to secure the mating surfaces of said housing parts in abutment.
Claim 9
Dependent Claim
31 words
The apparatus of claim 1 wherein said first and second housing parts are constructed and arranged to define a plurality of cavities one for each of said plurality of fastening assemblies.
Claim 10
Dependent Claim
22 words
The apparatus of claim 7 wherein said wedge element has a pilot portion receivable in a recess in said second housing part.
Claim 11
Dependent Claim
34 words
The apparatus of claim 4 wherein said securing means is a bolt extending radially relative to the crankshaft and is turned into a threaded bore in the hub portion of the intermediate housing section.
Claim 12
Dependent Claim
21 words
The apparatus of claim 1 wherein each of said first and second housing parts are secured together at their outer peripheries.
Claim 13
Dependent Claim
149 words
A two-piece intermediate housing section for the housing of a multi-rotor rotary mechanism in which each rotor is supported for rotation on a crankshaft, the intermediate housing section comprising: a. first and second housing parts having juxtaposed mating surfaces disposed in abutment and extending in a plane substantially normal to the longitudinal axis of the crankshaft; b. means at the outer peripheries of said first and second housing parts for securing those housing parts together; c. the first and second housing parts forming a hub portion receiving therethrough said crankshaft and constructed and arranged to define a cavity therebetween extending radially from adjacent the outer peripheries of the housing parts to adjacent the hub portion; and d. a plurality of fastening assemblies disposed in said cavity to secure said mating surfaces of said first and second housing parts in abutment inwardly of the outer peripheries of said housing parts.
Claim 14
Dependent Claim
149 words
A two-piece intermediate housing section for the housing of a multi-rotor rotary mechanism in which each rotor is supported for rotation on a crankshaft, the intermediate housing section comprising: a. first and second housing parts having juxtaposed mating surfaces disposed in abutment and extending in a plane substantially normal to the longitudinal axis of the crankshaft; b. means at the outer peripheries of said first and second housing parts for securing those housing parts together; c. the first and second housing parts forming a hub portion receiving therethrough said crankshaft and constructed and arranged to define a cavity therebetween extending radially from adjacent the outer peripheries of the housing parts to adjacent the hub portion; and d. a plurality of fastening assemblies disposed in said cavity to secure said mating surfaces of said first and second housing parts in abutment inwardly of the outer peripheries of said housing parts.
Claim 15
Dependent Claim
25 words
The apparatus of claim 12 wherein an access port means communicating with the cavity is provided to permit a tool to engage said fastening assemblies.
Claim 16
Dependent Claim
79 words
The apparatus of claim 12 wherein each of said plurality of fastening assemblies comprises: a. a first means connected to said first housing part; b. a second means movable relative to said first means and coacting upon relative movement to draw the mating surfaces of the housing parts together; and c. securinG means connected to said second means and to the second housing part to effect movement of said second means and hold the same in a desired position.
Claim 17
Dependent Claim
37 words
The apparatus of claim 13 wherein said first means is a bracket having a first camming surface and the second means is a wedge element having a second camming surface substantially complementary to said first camming surface.
Claim 18
Dependent Claim
23 words
The apparatus of claim 14 wherein said securing means is a threaded element receivable in a threaded bore in said second housing part.
Claim 19
Dependent Claim
24 words
The apparatus of claim 15 wherein said wedge element has a pilot portion which is receivable in a bore in said second housing part.
Claim 20
Dependent Claim
110 words
A two-piece intermediate housing section for the housing of a multi-rotor rotary mechanism in which each rotor is supported for rotation on a crankshaft, the intermediate housing section comprising: a. first and second housing parts having juxtaposed mating surfaces disposed in abutment and extending in a plane substantially normal to the longitudinal axis of the crankshaft; b. the first second housing parts being constructed and arranged to form a hub portion surrounding said crankshaft and to define a cavity therebetween surrounding the hub portion; and c. fastening means disposed in said cavity at the hub portion to secure said mating surfaces of said first and second housing parts in abutment.
Claim 21
Dependent Claim
110 words
A two-piece intermediate housing section for the housing of a multi-rotor rotary mechanism in which each rotor is supported for rotation on a crankshaft, the intermediate housing section comprising: a. first and second housing parts having juxtaposed mating surfaces disposed in abutment and extending in a plane substantially normal to the longitudinal axis of the crankshaft; b. the first second housing parts being constructed and arranged to form a hub portion surrounding said crankshaft and to define a cavity therebetween surrounding the hub portion; and c. fastening means disposed in said cavity at the hub portion to secure said mating surfaces of said first and second housing parts in abutment.
References Cited (Backward Citations)
US3062435A
Cited
US3193187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |