US4170804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiper arm and mounting head
Assignee: Vanauto Accessories Ltd Pty
•
Filing: 1978-05-15
•
Granted: 1979-10-16
•
Expires: 1998-05-15
Abstract
Abstract An improved wiper arm and connector head arrangement which may be readily assembled without use of special equipment by means of inserting opposed bosses on the head into corresponding open-sided recesses on the arm and then relatively rotating the head and the arm, to a position locating a tongue member on the head into a groove in the arm whereby the bosses can no longer be extracted through the open side of the recesses and therefore the head is attached to the arm.
Inventors
- 👤 Douglas E. Scotcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:16
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3425; B60S1/3445; B60S1/345; B60S1/3452; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32221; Y10T403/32606; Y10T403/32861; Y10T403/32918
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
87 words
A wiper head attachable to a wiper arm, said wiper head having a boss and a finger, said wiper arm having a recess with an opening at one side thereof, and a shoulder; whereby said boss is insertable into said recess through said opening, whereafter said head is movable relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 2
Dependent Claim
87 words
A wiper head attachable to a wiper arm, said wiper head having a boss and a finger, said wiper arm having a recess with an opening at one side thereof, and a shoulder; whereby said boss is insertable into said recess through said opening, whereafter said head is movable relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 3
Dependent Claim
19 words
A wiper head as claimed in claim 1, wherein said boss is snap-fittable through said opening into said recess.
Claim 4
Dependent Claim
39 words
A wiper head as claimed in claim 1 or 2, wherein a spring is interconnected between said arm and said head to thereby resiliently hold said head and said arm in a position locating said finger behind said shoulder.
Claim 5
Dependent Claim
48 words
A wiper head as claimed in claim 3, wherein a removable tab is provided on said arm, thereby enabling said spring to hold said head against said tab in a position locating said finger behind said shoulder and relatively locating said arm and head in a desired position.
Claim 6
Dependent Claim
78 words
A wiper head as claimed in any one of claims 1, 2 and 4, wherein said shoulder and said finger form part of a tongue and groove connection wherein said shoulder forms part of one side of a groove and said finger forms part of the corresponding side of a tongue, whereby said relative movement locates said tongue behind said groove, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 7
Dependent Claim
75 words
A wiper head as claimed in any one of claims 1, 2 and 4, wherein there are a pair of bosses, one boss located on each side of said head, and there are a pair of recesses, one recess located on each side of said arm, each recess having an opening, whereby, on corresponding sides of said arm and head, each boss is insertable into the corresponding recess through the opening of that corresponding recess.
Claim 8
Dependent Claim
87 words
A wiper arm attachable to a wiper head, said wiper head having a boss and a finger, said wiper arm having a recess with an opening at one side thereof, and a shoulder; whereby said boss is insertable into said recess through said opening whereafter said head is movable relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 9
Dependent Claim
87 words
A wiper arm attachable to a wiper head, said wiper head having a boss and a finger, said wiper arm having a recess with an opening at one side thereof, and a shoulder; whereby said boss is insertable into said recess through said opening whereafter said head is movable relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 10
Dependent Claim
19 words
A wiper arm as claimed in claim 7, wherein said boss is snap-fittable through said opening into said recess.
Claim 11
Dependent Claim
39 words
A wiper arm as claimed in claim 7 or 8, wherein a spring is interconnected between said arm and said head to thereby resiliently hold said head and said arm in a position locating said finger behind said shoulder.
Claim 12
Dependent Claim
48 words
A wiper arm as claimed in claim 9, wherein a removable tab is provided on said arm thereby enabling said spring to hold said head against said tab in a position locating said finger behind said shoulder and relatively locating said arm and head in a desired position.
Claim 13
Dependent Claim
78 words
A wiper arm as claimed in any one of claims 7, 8 and 10, wherein said shoulder and said finger form part of a tongue and groove connection wherein said shoulder forms part of one side of a groove and said finger forms part of the corresponding side of a tongue, whereby said relative movement locates said tongue behind said groove thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 14
Dependent Claim
75 words
A wiper arm as claimed in any one of claims 7, 8 and 10, wherein there are a pair of bosses, one boss located on each side of said head, and there are a pair of recesses, one recess located on each side of said arm, each recess having an opening, whereby, on corresponding sides of said arm and head, each boss is insertable into the corresponding recess through the opening of that corresponding recess.
Claim 15
Dependent Claim
89 words
An assembly of a wiper arm and a wiper head, said wiper head having a boss and a finger, said wiper arm having a recess with an opening at one side thereof, and a shoulder; whereby said boss is inserted into said recess through said opening whereafter said head is moved relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 16
Dependent Claim
89 words
An assembly of a wiper arm and a wiper head, said wiper head having a boss and a finger, said wiper arm having a recess with an opening at one side thereof, and a shoulder; whereby said boss is inserted into said recess through said opening whereafter said head is moved relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder, thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 17
Dependent Claim
18 words
An assembly as claimed in claim 13, wherein said boss is snap-fittable through said opening into said recess.
Claim 18
Dependent Claim
38 words
An assembly as claimed in claim 13 or 14, wherein a spring is interconnected between said arm and said head to thereby resiliently hold said head and said arm in a position locating said finger behind said shoulder.
Claim 19
Dependent Claim
47 words
An assembly as claimed in claim 15, wherein a removable tab is provided on said arm, thereby enabling said spring to hold said head against said tab in a position locating said finger behind said shoulder and relatively locating said arm and head in a desired position.
Claim 20
Dependent Claim
73 words
An assembly as claimed in claim 13 or 14, wherein said shoulder and said finger form part of a tongue and groove connection wherein said shoulder forms part of one side of a groove and said finger forms part of the corresponding side of a tongue, whereby said relative movement locates said tongue behind said groove thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
Claim 21
Dependent Claim
70 words
An assembly as claimed in claim 13 or 14, wherein there are a pair of bosses, one boss located on each side of said head, and there are a pair of recesses, one recess located on each side of said arm, each recess having an opening, whereby, on corresponding sides of said arm and head, each boss is insertable into the corresponding recess through the opening of that corresponding recess.
References Cited (Backward Citations)
US2142054A
Cited
US2226358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-15 | 1983-04-16 | 1983-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-15 | 1987-04-16 | 1987-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-15 | 1991-04-16 | 1991-10-16 | $7700.00 | Window Closed / Lapsed |